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121 Psychology Terms Every Student Must Master | Psych 101 — Transcript

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0:00Whether you're a student cramming for
0:01your Psych 101 final, a curious mind
0:04wanting to understand human behavior, or
0:06just looking for a clear and simple
0:08guide to complex topics, you've come to
0:11the right place. In today's video, we're
0:13going to do something a little
0:15different. We're launching a
0:17comprehensive series breaking down the
0:19most important terms in psychology.
0:21We'll cover everything from the field's
0:23historical foundations to [music] the
0:25intricate details of personality, social
0:28behavior, and mental health. Our goal is
0:31to make psychology accessible to
0:33everyone. We'll define each term,
0:35provide a clear example, and explain it
0:37in a way that's easy to understand and
0:40remember. By the end of this series,
0:42you'll have a solid foundation in the
0:44language of psychology. [music] Make
0:46sure to subscribe and hit that
0:47notification bell so you don't miss a
0:49single part. Ready? Let's dive into our
0:53first section, foundations and history.
0:56Section one, foundations and history.
0:59Before we can understand where
1:01psychology is today, we have to look
1:03back at its roots. This first section
1:06covers the origins of psychology, the
1:08early schools of thought, and how it
1:10evolved from philosophical questions
1:12into a rigorous scientific discipline.
1:15One, psychology. First up, the big one,
1:19psychology. Psychology is the scientific
1:22study of mind and behavior. This means
1:24psychologists use scientific methods to
1:27explore our inner world, our thoughts
1:29and feelings, and our outer world, our
1:32observable actions. For example, a
1:35psychologist might study why some people
1:37feel anxious in social situations,
1:39looking at both the mental processes and
1:42the behavioral responses involved. Two,
1:45mind. Next, we have the mind. The mind
1:49refers to our mental processes including
1:51our thoughts, feelings, and
1:53consciousness. It's the inner world that
1:56makes us who we are. A simple example is
1:58thinking about a childhood memory. That
2:01entire process, the images, the
2:03emotions, the story you tell yourself is
2:06all part of the mind at work. Three,
2:09behavior. In contrast to the mind, we
2:12have behavior. Behavior consists of the
2:15observable actions of a person or
2:17animal. It's anything we can see and
2:20measure. For instance, a student raising
2:22their hand in class is a clear
2:24observable behavior. Psychologists study
2:27behavior to understand the underlying
2:29mental processes that drive it. Four,
2:32philosophy. Psychology didn't just
2:35appear out of nowhere. It has deep roots
2:37in philosophy. Philosophy is the
2:40discipline that influenced early
2:42psychology by asking fundamental
2:44questions about human nature, knowledge,
2:46and existence. Think of ancient Greek
2:49philosophers like Plato who questioned
2:52how we know what we know. These early
2:54inquiries laid the groundwork for the
2:56scientific investigations that would
2:58later define psychology.
3:00Five, introspection. One of the earliest
3:03methods used to study the mind was
3:05introspection. Introspection is the
3:08process of examining one's own thoughts
3:10and feelings. It's a form of
3:12self-reflection. For example, if you
3:15take a moment to reflect on why you felt
3:17sad after watching a movie, you are
3:19using introspection. While it's a useful
3:22tool for self-awareness, it has been
3:24criticized as too subjective for
3:26scientific research.
3:28Six, structuralism.
3:31This leads us to structuralism, an early
3:33school of thought that aimed to break
3:35down the mind into its most basic
3:37elements promoted by Wilhelm Vunt and
3:40his student Edward Titner.
3:42Structuralists used introspection to
3:44analyze the basic components of
3:45consciousness. For example, a
3:48structuralist might ask someone to
3:50describe the experience of tasting
3:51chocolate by breaking it down into its
3:53individual sensations, sweet, bitter,
3:57smooth, and so on. Seven, functionalism.
4:01In response to structuralism,
4:03functionalism emerged. This school of
4:06thought championed by William James was
4:08less concerned with the structure of the
4:10mind and more interested in its purpose.
4:13Functionalism is the view that mental
4:15processes help individuals adapt to
4:17their environment. For example, a
4:20functionalist would study how memory
4:22helps us survive by allowing us to
4:24remember which foods are safe to eat and
4:26which are dangerous. Eight, Gestalt
4:29psychology. Next is Gestalt psychology,
4:33an approach that emphasizes the
4:34importance of patterns and holes in
4:36perception. The core idea is that the
4:39whole is greater than the sum of its
4:41parts. When you look at a face, you
4:43don't see two eyes, a nose, and a mouth
4:45as separate features. You perceive a
4:48complete face. Gestalt psychologists
4:50argued that our brains are wired to see
4:52patterns and organized holes, not just
4:55individual pieces of information. Nine.
4:58Psychoanalysis now for a name you've
5:01probably heard. Sigman Freud and his
5:04theory of psychoanalysis. Psychoanalysis
5:07proposes that our behavior is shaped by
5:09unconscious motives and early childhood
5:11experiences. Freud used techniques like
5:14dream analysis in therapy to uncover
5:17these hidden influences. The famous
5:19iceberg metaphor illustrates this idea
5:22perfectly. The conscious mind is just
5:24the tip while the vast powerful
5:27unconscious lies beneath the surface.
5:3010. Humanistic psychology as a reaction
5:33against the determinism of
5:35psychoanalysis and behaviorism.
5:37Humanistic psychology emerged. This
5:39perspective focuses on personal growth,
5:42free will, and human potential.
5:44Humanistic psychologists such as Abraham
5:47Maslo and Carl Rogers believed that
5:50people are inherently good and motivated
5:52to achieve their full potential or
5:55self-actualize. A therapist using this
5:58approach would encourage self-exloration
6:00and help a client recognize their own
6:03strengths and capacity for growth. 11.
6:06Cognitive revolution. Finally, we have
6:08the cognitive revolution. This was a
6:11major shift in the midentth century that
6:14brought psychologyy's focus back to the
6:16mind. The cognitive revolution was the
6:18shift towards studying mental processes
6:21like memory, attention, and problem
6:23solving scientifically. The development
6:26of computers provided a powerful new
6:28metaphor for understanding the mind as
6:30an information processing system,
6:33leading to a surge in research on memory
6:35and attention. Section two, major
6:38perspectives of psychology.
6:40Now that we've covered the historical
6:42foundations, let's explore the major
6:44perspectives that contemporary
6:46psychologists use to understand the
6:48human mind and behavior. These are the
6:51seven core approaches that act as
6:53different lenses for explaining our
6:55thoughts, emotions, and actions.
6:5912. Biological perspective.
7:02The biological perspective explains
7:04behavior through our biological
7:06processes. This approach examines how
7:09our genetics, brain structures, and
7:11neurochemicals influence who we are. For
7:15example, from a biological perspective,
7:17depression might be linked to low levels
7:20of the neurotransmitter serotonin,
7:22highlighting the connection between our
7:24biology and our mental state.
7:2713. Behavioral perspective.
7:30Next is the behavioral perspective,
7:33which explains behavior through learning
7:35and conditioning. This view rooted in
7:38the work of Watson and Skinner focuses
7:40on how our environment shapes our
7:42actions through rewards, punishments,
7:45and associations.
7:47A classic example is a child receiving
7:49rewards for completing their chores,
7:51which reinforces the behavior and makes
7:54it more likely to happen again.
7:5714. Cognitive perspective.
8:00The cognitive perspective focuses on our
8:02mental processes such as thinking,
8:05memory, and problem solving. It explores
8:08how we encode, process, store, and
8:11retrieve information. For instance, a
8:14cognitive psychologist might study how
8:16students encode new vocabulary words,
8:19looking for the most effective
8:20strategies to improve memory and
8:22learning.
8:2415. Humanistic perspective. As we
8:27touched on earlier, the humanistic
8:29perspective emphasizes self-growth,
8:32choice, and free will. It views
8:35individuals as being in control of their
8:37own destinies and striving to reach
8:39their full potential. An example of this
8:42perspective in action is a therapist
8:44helping a client build a positive
8:46self-concept by focusing on their
8:49strengths and personal goals.
8:5216. Psychonamic perspective. The
8:55psychonamic perspective which originated
8:58with Freud emphasizes the role of
9:00unconscious motives and early childhood
9:03conflicts in shaping our behavior. While
9:06modern psychonamic theory has evolved,
9:09it still focuses on how hidden thoughts
9:11and feelings can influence our actions.
9:14A therapist using this approach might
9:16explore a person's childhood experiences
9:19to understand the root of their current
9:21anxieties.
9:2317. Evolutionary psychology.
9:27Evolutionary psychology explains
9:29behavior through the lens of adaptation
9:31and natural selection. This perspective
9:34suggests that our behaviors and mental
9:36processes have been shaped over millions
9:38of years to help our ancestors survive
9:41and reproduce.
9:43For example, the common fear of snakes
9:45could be explained as an evolutionary
9:47trait that increased our ancestors
9:49chances of survival.
9:5218. Socioultural perspective. The
9:55socioultural perspective explains
9:58behavior by examining the influence of
10:00culture and social environment. It
10:02recognizes that our thoughts, feelings,
10:05and actions are shaped by the people and
10:07communities around us. A simple example
10:10is how greetings differ across cultures
10:13from a handshake in one country to a bow
10:15in another, showing how social norms
10:18guide our behavior.
10:2019. Biocschosocial model. Many modern
10:24psychologists use the biocschosocial
10:27model which integrates biological,
10:30psychological, and socioultural factors
10:33to provide a more complete picture of
10:35human behavior.
10:37Instead of looking at a problem from a
10:38single angle, this model combines
10:41multiple angles. For example, when
10:43explaining addiction, the biocschosocial
10:46model would consider a person's genetic
10:48predispositions, their thought patterns
10:50and stress levels, and their social
10:52support network.
10:5420. Positive psychology.
10:57Positive psychology is a relatively new
11:00field that focuses on the study of human
11:02strengths, well-being, and flourishing.
11:05Instead of just treating mental illness,
11:07it aims to help people live happier,
11:10more fulfilling lives. A common practice
11:12in positive psychology is practicing
11:15gratitude to improve mood which shifts
11:17the focus toward what's going right in
11:19our lives.
11:2121. Cultural psychology. Finally, we
11:25have cultural psychology which studies
11:27how culture shapes our mental processes
11:29and behavior. It goes beyond the
11:32socioultural perspective by exploring
11:34how deep-seated cultural values and
11:36norms influence the very way we think
11:39and feel. For example, a cultural
11:42psychologist might study differences in
11:44parenting styles between individualistic
11:46and collectivistic cultures and how
11:49these differences impact a child's
11:51development. Section three, key
11:53theorists and early contributors.
11:56With a grasp of the major perspectives,
11:58let's turn our attention to the
12:00influential psychologists whose ideas
12:02shaped the field's very foundation.
12:05These are the pioneers who asked
12:06groundbreaking questions and developed
12:09the theories we still discuss today. 22.
12:13Wilhelm Vunt. Often called the father of
12:16modern psychology, Wilhelm Vunt
12:19established the first psychology
12:21laboratory in Leipig, Germany in 1879.
12:25This event is widely considered the
12:27official start of psychology as a
12:29distinct scientific discipline.
12:32Vunt's work focused on measuring mental
12:34processes such as his famous experiments
12:37measuring reaction times to sensory
12:39stimuli.
12:4123. Edward Titner, a student of Vunt.
12:45Edward Titner brought Vunt's ideas to
12:48the United States and developed the
12:50school of thought known as
12:51structuralism.
12:53He used introspection to try to identify
12:56the basic structures of the mind. For
12:58example, he would ask subjects to
13:01describe their raw sensory experiences
13:03when viewing different colors, trying to
13:06break down perception into its
13:08fundamental components. 24. William
13:11James. William James, a prominent
13:14American philosopher and psychologist,
13:17was the founder of functionalism.
13:19He was more interested in how the mind
13:22allows us to adapt and function in the
13:24world. He studied practical topics such
13:27as habits and stream of consciousness,
13:30shifting psychologyy's focus toward real
13:32world applications.
13:3425. John B. Watson. John B. Watson was
13:38the founder of behaviorism. He argued
13:41that psychology should only study
13:43observable behavior, not internal mental
13:46states. His most famous and
13:48controversial study was the little
13:50Albert experiment where he conditioned a
13:53young child to fear a white rat,
13:56demonstrating that emotions could be
13:57learned through conditioning. 26. BF
14:01Skinner. Following in Watson's
14:03footsteps, BF Skinner became one of the
14:06most influential behaviorists. He
14:09developed the theory of operant
14:10conditioning which explains how behavior
14:13is shaped by its consequences,
14:15reinforcements and punishments. His work
14:19such as training rats and pigeons to
14:21perform complex behaviors using rewards
14:24has had a massive impact on everything
14:26from education to animal training. 27.
14:30Ivan Pavlov. While not a psychologist by
14:33trade, Russian physiologist Ivan
14:35Pavlov's work was crucial to
14:37behaviorism. He discovered classical
14:40conditioning by accident while studying
14:42digestion in dogs. He noticed that his
14:45dogs began to salivate at the mere sound
14:48of a bell that they associated with
14:50feeding time, demonstrating how a
14:52neutral stimulus can come to elicit a
14:55natural response. 28. Sigman Freud. As
14:59we mentioned earlier, Sigman Freud was
15:01the founder of psychoanalysis.
15:03His theories on the unconscious mind,
15:06defense mechanisms, and the importance
15:08of early childhood experiences
15:10revolutionized how we think about mental
15:12health. His use of dream interpretation
15:15and free association in therapy opened
15:18up new avenues for exploring the inner
15:20world. 29. Abraham Maslo. Abraham Maslo
15:25was a leading figure in humanistic
15:27psychology. He is best known for
15:30developing his hierarchy of needs, a
15:32theory that posits people are motivated
15:34to satisfy basic needs before moving on
15:37to more advanced ones. At the top of the
15:40pyramid is self-actualization,
15:43the drive to achieve one's full
15:45potential, which he considered the
15:47highest human goal. 30. Carl Rogers.
15:51Another key humanistic theorist, Carl
15:53Rogers, developed client- centered
15:56therapy. He believed that for a person
15:58to grow, they need an environment of
16:00genuiness, acceptance, and empathy. His
16:04approach, which empowers the client in
16:06the therapeutic process, has had a
16:08lasting influence on the practice of
16:10psychotherapy. 31. Maxworheimer.
16:14Maxworheimer was one of the founders of
16:16Gestalt psychology. He argued that
16:19perception is about seeing the whole,
16:22not just the parts. His research on
16:24perceived motion, known as the Fi
16:26phenomenon, demonstrated how our brains
16:29create a sense of movement from a
16:31sequence of still images, a principle
16:34that is the basis for movies and
16:36animation. 32. Olrich Nicer. Finally,
16:41Olrich Nicer is often called the father
16:43of cognitive psychology. His 1967 book,
16:48Cognitive Psychology, helped define the
16:50field and legitimize the scientific
16:52study of mental processes. His research
16:55on memory and attention helped fuel the
16:58cognitive revolution, bringing the mind
17:00back to the forefront of psychological
17:02inquiry. Section four, research methods.
17:07Now that we know the history and the key
17:09players, let's talk about how
17:11psychologists actually do psychology.
17:14This section covers research methods,
17:16the tools psychologists use to design
17:19studies, collect data, and test
17:21hypotheses to understand behavior
17:24scientifically.
17:2633. Theory. A theory is a broad
17:29explanation for a wide range of
17:31observations based on a large body of
17:34evidence. It's not just a guess. It's a
17:37wellsubstantiated framework. For
17:39example, attachment theory explains how
17:42the bond between a child and caregiver
17:44influences development.
17:4734. Hypothesis.
17:49A hypothesis is a specific testable
17:52prediction derived from a theory. It's a
17:55statement about the relationship between
17:57variables. For example, based on
18:00attachment theory, a hypothesis might be
18:02that children with secure attachments
18:04will have better academic performance.
18:0835. Variable. A variable is any factor,
18:12trait, or condition that can exist in
18:14different amounts or types. It's
18:17anything that can be changed or measured
18:19in a study. For example, in a study on
18:22stress, a variable would be the
18:24participants stress levels.
18:2736. Operational definition. An
18:30operational definition is a precise
18:33description of how a variable will be
18:35measured or manipulated in a study. It
18:38ensures that the research can be
18:39replicated. For example, an operational
18:42definition of stress could be a specific
18:45measure of heart rate or a score on a
18:47stress questionnaire.
18:5037. Experiment. An experiment is a
18:53research method in which the
18:55investigator manipulates one or more
18:57factors to observe their effects on a
18:59behavior or mental process. This is the
19:02only method that can establish a cause
19:04and effect relationship. For example, an
19:07experiment could test whether getting
19:09more sleep improves memory.
19:1238. Correlation. Correlation describes a
19:16relationship between two variables, but
19:18it does not prove causation. It simply
19:21indicates that as one variable changes,
19:24the other changes as well. For example,
19:27there is a positive correlation between
19:28height and weight, but one doesn't cause
19:31the other.
19:3339. Independent variable. The
19:36independent variable is the factor the
19:38researcher manipulates in an experiment.
19:40It's the cause part of the cause and
19:42effect relationship. In our sleep study
19:45example, the amount of sleep would be
19:47the independent variable.
19:5040. Dependent variable. The dependent
19:53variable is the outcome that is measured
19:55in an experiment. It's the effect that
19:58is expected to change as a result of
20:00manipulating the independent variable.
20:03In the sleep study, memory performance
20:05would be the dependent variable.
20:0841. Random assignment. Random assignment
20:12is the process of assigning participants
20:14to experimental and control groups by
20:16chance. This minimizes pre-existing
20:19differences between the groups and helps
20:21ensure that the results are due to the
20:23independent variable rather than some
20:25other factor. For example, a researcher
20:28might randomly assign students to a new
20:31teaching method.
20:3342. Ethical guidelines. Ethical
20:36guidelines are the strict rules of
20:38conduct that researchers must follow to
20:40protect the well-being and rights of
20:41research participants. A key guideline
20:44is informed consent, which means
20:46participants must be fully informed
20:48about the research and agree to
20:50participate voluntarily.
20:53Now that we've covered how research is
20:55done, let's move into the biological
20:57foundations of behavior in the next
20:59section.
21:00Section five, biocsychology.
21:04Let's dive into the brain.
21:06Biocsychology, also known as behavioral
21:09neuroscience, is the study of how the
21:11brain, nervous system, and other
21:13biological processes influence our
21:16thoughts, emotions, and behaviors. It's
21:18where psychology meets biology.
21:2243. Neuron.
21:25The fundamental unit of the nervous
21:27system is the neuron. This is a
21:29specialized nerve cell that transmits
21:31information throughout the body by
21:34sending and receiving electrical and
21:36chemical signals. Every thought you have
21:38and every action you take is the result
21:41of neurons firing.
21:4444. Synapse.
21:47Neurons don't physically touch each
21:48other. Instead, they communicate across
21:51a tiny gap called a syninnapse. When a
21:54signal reaches the end of one neuron, it
21:57triggers the release of chemical
21:58messengers that travel across the
22:00syninnapse to the next neuron,
22:02continuing the signal.
22:0545. Neurotransmitter.
22:08Those chemical messengers are called
22:10neurotransmitters.
22:12There are many different types and each
22:14has a specific function. They play a
22:17crucial role in regulating our mood,
22:19sleep, and behavior. For example, the
22:22neurotransmitter serotonin plays a major
22:25role in regulating our mood.
22:2846. Dopamine.
22:31Dopamine is a well-known
22:33neurotransmitter linked to reward,
22:35motivation, and pleasure. When you
22:38achieve a goal or receive praise, your
22:41brain releases dopamine, which makes you
22:43feel good and motivates you to repeat
22:45the behavior.
22:4747. Serotonin.
22:50Serotonin is another key
22:52neurotransmitter that affects mood,
22:54hunger, sleep, and arousal. Imbalances
22:57in serotonin levels are often linked to
23:00mental health conditions, which is why
23:02low serotonin is believed to contribute
23:04to depression.
23:0648. Endorphins.
23:09Endorphins are the body's natural
23:11painkillers. These neurotransmitters are
23:14released in response to stress or pain
23:16and can produce feelings of euphoria.
23:19The well-known runner's high is a
23:21classic example of endorphins at work.
23:2549. Central nervous system. The central
23:28nervous system or CNS is the body's
23:32command center. It consists of the brain
23:34and the spinal cord. The CNS is
23:37responsible for processing sensory
23:39information and coordinating all of the
23:42body's functions from simple reflexes to
23:45complex thoughts.
23:4750. Peripheral nervous system. The
23:50peripheral nervous system or PNS is made
23:54up of all the nerves that branch out
23:56from the brain and spinal cord. It
23:58connects the CNS to the rest of the
24:00body, allowing us to sense the world
24:02around us and carry out motor commands.
24:05For example, the sensation of touch is
24:08transmitted to the brain via the PNS.
24:1251. Cerebral cortex. The cerebral cortex
24:16is the wrinkled outer layer of the
24:18brain. It is the most highly developed
24:20part of the human brain and is
24:22responsible for our most complex mental
24:25functions such as thinking, language,
24:28and problem solving. When you're solving
24:30a math problem, you're using your
24:32cerebral cortex. 52. Cerebellum. Located
24:37at the back of the brain, the cerebellum
24:39is crucial for coordination, balance,
24:42and motor control. It allows us to
24:44perform smooth, coordinated movements
24:46like playing the piano or riding a bike.
24:5053. Amydala. The amygdala is a small
24:54almond-shaped region deep within the
24:56brain that is heavily involved in
24:58processing emotions, especially fear.
25:01It's responsible for our fight orflight
25:04response and plays a key role in our
25:06startle response to sudden unexpected
25:09events.
25:1054. Hippocampus.
25:13Finally, the hippocampus is a brain
25:15region that plays a vital role in
25:17forming new memories. It helps convert
25:20our short-term experiences into
25:22long-term memories. For example, when
25:24you're learning a new route to a
25:26friend's house, your hippocampus is hard
25:28at work. Now that we've covered the
25:30biological foundations of behavior,
25:33let's move into how we take in and
25:35interpret the world through sensation
25:37and perception. Section six, sensation
25:41and perception. How do we experience the
25:44world around us? This section explores
25:47sensation and perception, how we detect
25:50sensory information from our
25:51environment, and how our brain
25:53interprets those signals to create our
25:55subjective experience of reality.
25:5955. Sensation.
26:02Sensation is the process by which our
26:04sensory receptors and nervous system
26:07receive and represent stimulus energies
26:09from our environment. It's the raw data
26:12that our senses, sight, hearing, smell,
26:15taste, and touch collect. For example,
26:19hearing a sound is a sensation. Your
26:21ears are simply detecting sound waves.
26:2556. Perception.
26:28Perception, on the other hand, is the
26:31process of organizing and interpreting
26:33that sensory information, enabling us to
26:36recognize meaningful objects and events.
26:39It's how our brain makes sense of the
26:41raw data. For example, recognizing that
26:44the sound you heard is a specific song
26:46is a form of perception.
26:5057. Absolute threshold.
26:53The absolute threshold is the minimum
26:55amount of stimulation needed to detect a
26:58particular stimulus 50% of the time.
27:02It's the dividing line between what we
27:04can and cannot detect. For example, the
27:07faintest tone you can possibly hear is
27:10your absolute threshold for sound.
27:1458. Difference threshold. The difference
27:17threshold, also known as the just
27:20noticeable difference, is the smallest
27:23detectable difference between two
27:25stimuli. It's the minimum change you
27:27need to notice that something is
27:29different. For example, noticing a
27:32slight change in the volume of your
27:34music is an example of the difference
27:36threshold.
27:3859. Sensory adaptation.
27:42Sensory adaptation is our diminished
27:44sensitivity to a constant, unchanging
27:46stimulus. When you're exposed to a
27:49stimulus for a long time, your sensory
27:52receptors fire less frequently and you
27:54start to ignore it. This is why you
27:57might notice a strong smell when you
27:59first walk into a room, but after a few
28:01minutes, you don't smell it anymore.
28:0460. Top-down processing. Top-down
28:08processing is how our brain uses prior
28:11knowledge, expectations, and context to
28:14interpret sensory information. We use
28:17what we already know to make sense of
28:19what we're seeing. This is how you can
28:21read sloppy handwriting or understand
28:24someone speaking with a heavy accent.
28:2762. Bottomup processing. In contrast,
28:32bottomup processing is an analysis that
28:34begins with the sensory receptors and
28:37works up to the brain's integration of
28:39sensory information. It's building a
28:42perception from the raw input without
28:44any prior knowledge. For example, seeing
28:47a collection of abstract shapes before
28:50your brain recognizes it as a familiar
28:52object is bottomup processing.
28:5662. Gestalt principles. As we mentioned
29:00earlier, Gestalt principles are the
29:02rules that describe how we tend to
29:03organize sensory information into
29:06meaningful holes or patterns. These
29:09principles include grouping objects by
29:11similarity, proximity, or continuity.
29:15They explain why we see a flock of birds
29:17as a single group rather than a
29:19collection of individual birds. Section
29:22seven, learning and conditioning. How do
29:25we learn new behaviors? This section
29:28delves into learning and conditioning,
29:30exploring how humans and animals acquire
29:32new skills, habits, and responses
29:35through association, reinforcement, and
29:38observation.
29:4063. Classical conditioning.
29:44Classical conditioning is a type of
29:46learning in which we associate two
29:48stimuli and thus anticipate events. It
29:51was first discovered by Ivan Pavlov. The
29:54most famous example is Pavlov's dogs,
29:57which learned to associate the sound of
29:59a bell with food and began to salivate
30:01at the sound of the bell alone.
30:0564. Unconditioned stimulus.
30:08In classical conditioning, an
30:10unconditioned stimulus is one that
30:12naturally and automatically elicits a
30:15response without prior learning. In
30:17Pavlov's experiment, the food was the
30:20unconditioned stimulus because it
30:22naturally caused the dogs to salivate.
30:2665. Unconditioned response. The
30:29unconditioned response is the unlearned
30:32naturally occurring response to the
30:34unconditioned stimulus. In this case,
30:37the dog's salivation in response to the
30:39food was the unconditioned response.
30:4366. Conditioned stimulus.
30:47The conditioned stimulus is an
30:49originally neutral stimulus that after
30:51association with an unconditioned
30:53stimulus comes to trigger a conditioned
30:56response. The bell in Pavlov's
30:58experiment was initially a neutral
31:00stimulus, but after it was paired with
31:03food, it became the conditioned
31:05stimulus.
31:0767. Conditioned response.
31:10The conditioned response is the learned
31:12response to a previously neutral
31:14stimulus that is now conditioned. The
31:17dog's salivating at the sound of the
31:19bell alone was the conditioned response.
31:22It's the same basic response as the
31:24unconditioned one, but it's now
31:26triggered by a learned stimulus.
31:2968. Operant conditioning.
31:32Operant conditioning is a type of
31:34learning in which behavior is
31:36strengthened if followed by a reinforcer
31:38or diminished if followed by a punisher.
31:41It's about learning from the
31:42consequences of our actions. For
31:45example, a dog learning new tricks to
31:47get treats is an example of operant
31:49conditioning.
31:5162. Reinforcement.
31:54Reinforcement is any event that
31:56strengthens the behavior it follows. It
31:59makes it more likely that the behavior
32:01will occur again.
32:02This can include anything from giving
32:04treats and rewards to offering bonuses
32:07for good performance.
32:0970. Punishment.
32:12Punishment is any event that weakens the
32:14behavior it follows. It makes it less
32:16likely that the behavior will occur
32:18again. An example would be taking away a
32:21teenager's phone for breaking curfew.
32:2471. Positive reinforcement. Positive
32:28reinforcement strengthens a response by
32:30presenting a typically pleasant stimulus
32:32after the response. The positive means
32:35adding something. For example, giving a
32:38child praise for cleaning their room is
32:40a form of positive reinforcement.
32:4372. Negative reinforcement.
32:47Negative reinforcement strengthens a
32:49response by removing or reducing
32:50something unpleasant. The negative means
32:53taking something away. For example,
32:56fastening your seat belt to stop the
32:58annoying beeping is negative
33:00reinforcement. Removing the noise
33:02reinforces the seat beltwearing
33:04behavior.
33:0573. Extinction.
33:08Extinction is the weakening of a
33:10conditioned response when the
33:11reinforcement is no longer provided. In
33:14classical conditioning, this happens
33:16when the conditioned stimulus is
33:18repeatedly presented without the
33:20unconditioned stimulus. For example, if
33:23the bell is rung repeatedly without
33:25food, the dog will eventually stop
33:27salivating in response to the bell.
33:3074. Observational learning.
33:34Observational learning is learning by
33:36watching others. We learn many of our
33:38behaviors by observing and imitating the
33:40actions of parents, peers, and role
33:43models. A child copying a parents
33:46gestures or phrases is a clear example
33:48of observational learning. Section 8.
33:52Memory and cognition.
33:54Let's explore the inner workings of the
33:56mind. This section focuses on memory and
33:59cognition. This includes the mental
34:01processes of thinking, knowing,
34:03remembering, and communicating.
34:0775. Memory.
34:09Memory is the process of storing and
34:12retrieving information over time. It's
34:14fundamental to our identity and our
34:17ability to learn from experience. A
34:20simple example is remembering your own
34:22phone number. A piece of information
34:24that has been encoded, stored, and can
34:26be easily retrieved.
34:2976. Encoding.
34:32Encoding is the first step in creating a
34:34new memory. It's the process of
34:37transforming sensory information into a
34:40form that can be stored in memory. When
34:42you're studying with flashc cards, you
34:44are actively encoding new information,
34:47trying to create a durable memory trace.
34:5177. Storage.
34:54Storage is the process of maintaining
34:56information in memory over time. After
34:59information is encoded, it needs to be
35:02stored. This can range from holding a
35:04phone number in your mind for a few
35:06seconds to remembering the names of your
35:08childhood friends for a lifetime.
35:1278. Retrieval.
35:14Retrieval is the process of accessing
35:17stored information from memory. This is
35:19what we typically think of as
35:21remembering. Recalling facts during a
35:24test is a classic example of retrieval,
35:27where you pull information from
35:29long-term storage.
35:3179. Working memory. Working memory is a
35:35more active version of short-term
35:37memory. It's a system for temporarily
35:40storing and managing the information
35:42needed to carry out complex cognitive
35:45tasks such as learning, reasoning, and
35:48comprehension.
35:49For example, holding a series of numbers
35:51in your mind while you perform a
35:53calculation is an example of using your
35:56working memory.
35:5880. Long-term memory. Long-term memory
36:02is our brain system for storing
36:03information for extended periods. It has
36:06a seemingly limitless capacity and
36:09includes all of our knowledge, skills,
36:11and experiences.
36:13Your childhood memories are a perfect
36:15example of the power and durability of
36:18long-term memory.
36:2081. Cognitive schema. A cognitive schema
36:24is a mental framework or concept that
36:27helps us organize and interpret
36:29information.
36:30We have schemas for all sorts of things,
36:33people, places, events, and objects. For
36:36example, you have a schema for a dog
36:39that includes features like four legs,
36:41fur, and a tail, which helps you quickly
36:44identify new examples of dogs.
36:4782. Problem solving. Problem solving is
36:51the process of finding solutions to
36:53difficult or complex issues. It involves
36:57identifying a problem, generating
36:59potential solutions, and evaluating
37:01those solutions to find the best one.
37:04Solving a puzzle is a straightforward
37:06example of problem solving.
37:0983. Huristics.
37:11Huristics are mental shortcuts or rules
37:14of thumb that we use to make judgments
37:16and solve problems efficiently. They are
37:19usually faster than more systematic
37:21methods, but are also more prone to
37:23errors. For example, when you're not
37:26sure of an answer on a multiplechoice
37:28test, you might use the heristic of
37:30guessing the most familiar sounding
37:32option.
37:3484. Biases.
37:36Cognitive biases are systematic errors
37:38in thinking that can influence our
37:41judgments and decisions. These biases
37:44often arise from our attempts to
37:45simplify information processing. A
37:48common example is confirmation bias. The
37:51tendency to seek out and favor
37:53information that confirms our existing
37:55beliefs while ignoring evidence that
37:57contradicts them. Section 9,
38:00developmental psychology. How do we grow
38:03and change throughout our lives? This
38:06section focuses on developmental
38:08psychology, the scientific study of how
38:10and why human beings change over the
38:13course of their life from infancy
38:15through adulthood.
38:1885. Developmental psychology.
38:22Developmental psychology is the broad
38:24field that studies our physical,
38:26cognitive, and social development across
38:28the lifespan. A developmental
38:31psychologist might examine how our
38:33thinking changes as we age or how our
38:36social relationships evolve from
38:38childhood to old age.
38:4186. Nature versus nurture.
38:45A central theme in developmental
38:47psychology is the nature versus nurture
38:50debate. This is the long-standing
38:52controversy over the relative
38:54contributions that genes and experience
38:57make to the development of our
38:59psychological traits and behaviors.
39:02For example, are our abilities and
39:04talents primarily inherited or are they
39:08shaped by our environment and
39:09upbringing?
39:1287. Attachment.
39:14Attachment refers to the deep and
39:16enduring emotional bond that connects
39:19one person to another across time and
39:22space. In developmental psychology, it
39:25usually refers to the bond between a
39:27child and their primary caregiver. A
39:30baby seeking comfort from a parent when
39:32they are scared is a clear sign of
39:35attachment.
39:3788. Secure attachment.
39:40A secure attachment is a healthy,
39:43stable, and comforting bond between a
39:45child and caregiver. Children with a
39:48secure attachment feel safe and
39:50confident to explore the world, knowing
39:52they have a secure base to return to.
39:55For example, a child with a secure
39:58attachment might be upset when their
39:59mother leaves, but is easily calmed when
40:02she returns.
40:0589. Insecure attachment.
40:08An insecure attachment is an anxious or
40:11avoidant bond that can form when a
40:13child's needs are not consistently met.
40:16This can lead to difficulties in forming
40:18healthy relationships later in life. A
40:21child who avoids their caregiver or is
40:24overly clingy may be a sign of an
40:26insecure attachment.
40:2990. Critical period.
40:32A critical period is an optimal period
40:34early in an organism's life when
40:37exposure to certain stimuli or
40:39experiences promotes normal development.
40:42If the organism is not exposed to the
40:44stimulus during this window, it may be
40:47difficult or impossible to develop that
40:49function later.
40:51Language learning is a classic example.
40:54It's much easier for young children to
40:56acquire a new language than for adults.
41:0091. Pia
41:03Jean Pia was a highly influential
41:06theorist of cognitive development. He
41:09proposed that children progress through
41:11four distinct stages of cognitive
41:13development, each with its own unique
41:16way of thinking about the world. A key
41:19concept in his work is object
41:21permanence, in which a baby learns that
41:23an object still exists even when it's
41:25hidden under a blanket.
41:2892. Ericson.
41:31Eric Ericson was a psychosocial
41:33development theorist who proposed that
41:35we go through eight stages of social
41:37development across our lifespan, each
41:40marked by a specific psychosocial
41:42crisis.
41:44For example, during adolescence, the
41:46crisis is identity versus role confusion
41:50where teenagers work to form a stable
41:52sense of self.
41:5493. Adolescence.
41:57Adolescence is the transitional period
41:59between childhood and adulthood,
42:02typically ranging from the teen years
42:04through the early 20s. It's a time of
42:07significant physical, cognitive, and
42:09social change, often marked by behaviors
42:12such as increased risk-taking as the
42:14brain continues to develop.
42:1794. Emerging adulthood.
42:21Emerging adulthood is a relatively
42:23recent stage of life spanning from the
42:25late teens to the mid20s.
42:28It's a period of exploration and
42:29instability when individuals are no
42:32longer adolescents but have not yet
42:34assumed the full responsibilities of
42:36adulthood.
42:38Exploring different career paths and
42:40relationships is a hallmark of this
42:42stage. Section 10. Personality.
42:46What makes you you? This section
42:49explores personality, the unique and
42:51relatively stable patterns of thinking,
42:54feeling, and behaving that make each
42:56person an individual.
42:5895. Personality.
43:01Personality refers to someone's unique
43:03and consistent patterns of thinking,
43:05feeling, and behaving. It's about how a
43:08person consistently reacts in different
43:10social situations and what makes them
43:13predictable to others. It's the
43:15combination of traits that makes you who
43:17you are.
43:1996. Trait/trait theory. Trait theory is
43:24a major approach to the study of
43:26personality. It suggests that
43:28personality consists of a set of stable
43:30characteristics or traits that influence
43:33our behavior across a variety of
43:35situations.
43:36For example, being described as outgoing
43:39is a trait because it reflects a
43:41consistent pattern of behavior across
43:43different environments.
43:4597. Big five traits. The most widely
43:49accepted model of personality is the big
43:51five, which proposes that personality
43:54can be described along five broad
43:56dimensions: openness, conscientiousness,
43:59extraversion, agreeableness, and
44:02neuroticism.
44:03You can remember them with the acronym
44:05ocean. This model is used by
44:08psychologists to describe the core of
44:10someone's personality.
44:1298. Openness. Openness refers to a
44:16person's curiosity, imagination, and
44:19willingness to try new experiences.
44:22People high in openness are often
44:24creative and adventurous, and they enjoy
44:26thinking outside the box. They might
44:28enjoy artistic projects or philosophical
44:31discussions.
44:3399. Conscientiousness.
44:36Conscientiousness describes how
44:37organized, responsible, and goal
44:39oriented a person is. People high in
44:42this trait are typically reliable,
44:44disciplined, and prefer to have a plan.
44:47Keeping a detailed planner, and always
44:49sticking to deadlines are hallmarks of
44:51conscientiousness.
44:53100. Extroversion.
44:55Extroversion is characterized by
44:57sociability, energy, and enthusiasm in
45:00social situations.
45:02Extroverts are often talkative and
45:04assertive, and they feel energized after
45:07spending time with others. They thrive
45:09in social events and enjoy being the
45:12center of attention.
45:14101. Agreeableness.
45:16Agreeableness refers to a person's
45:18tendency to be cooperative, trusting,
45:21and helpful. People high in
45:23agreeableness are often good-natured,
45:25compassionate, and skilled at supporting
45:28their friends during conflicts. They
45:30value social harmony and getting along
45:32with others.
45:34102. Neuroticism.
45:37Finally, neuroticism is the tendency to
45:39experience negative emotions such as
45:42anxiety, anger, and sadness. It's a
45:45measure of emotional instability. People
45:48high in neuroticism may feel anxious or
45:50stressed easily and are more prone to
45:52mood swings. Section 11, social
45:55psychology.
45:57How do others influence us? This section
46:00dives into social psychology, the
46:03scientific study of how our thoughts,
46:05feelings, and behaviors are shaped by
46:07the actual, imagined, or implied
46:10presence of other people.
46:13103. Social psychology.
46:16Social psychology explores how we think
46:19about, influence, and relate to one
46:21another. It examines the power of the
46:23situation and how our behavior changes
46:26when we are being watched or are part of
46:29a group. It's the study of human
46:31interaction on a grand scale.
46:35104. Attribution.
46:38Attribution is the process of explaining
46:40the causes of people's behavior,
46:43including our own. We are constantly
46:45trying to figure out why people do what
46:47they do. For example, if someone ignores
46:51you, you might attribute it to rudeness
46:53rather than consider that they might be
46:55distracted.
46:57105. Fundamental attribution error. The
47:02fundamental attribution error is our
47:04tendency to overestimate the influence
47:06of personality and underestimate the
47:09influence of situational factors when
47:12explaining other people's behavior. For
47:15example, we might assume a driver who
47:17cuts us off is careless rather than
47:20considering they might be in a rush for
47:22an emergency.
47:24106. Conformity.
47:27Conformity is the act of adjusting our
47:30behavior or thinking to coincide with a
47:32group standard. We often conform to fit
47:35in, be accepted, or because we believe
47:38the group knows more than we do.
47:41Dressing similarly to your friends or
47:43adopting their slang are common examples
47:46of conformity.
47:48107. Obedience.
47:51Obedience is a form of social influence
47:54where a person follows direct orders
47:56from an authority figure. Stanley
47:58Mgrim's famous experiments showed that
48:01people are surprisingly willing to obey
48:03authority even when it means harming
48:06others. A simple example is
48:08participating in an activity simply
48:10because a teacher instructs you to.
48:14108. Group polarization.
48:18Group polarization is the tendency for a
48:20group's initial attitudes to become more
48:23extreme after a group discussion. A mild
48:27opinion can become much stronger after a
48:29debate with like-minded people.
48:32This can lead to more extreme decisions
48:34than any individual would have made on
48:36their own.
48:38109. Group think. Group think is a
48:42phenomenon that occurs when a group's
48:44desire for harmony or conformity leads
48:47to irrational or dysfunctional
48:49decision-making.
48:50To avoid conflict, a team might agree on
48:53a bad idea that no one individually
48:55supports, leading to poor results.
48:59110. Social facilitation.
49:03Social facilitation is the tendency for
49:05people to perform better on simple or
49:08well-learned tasks when in the presence
49:10of others. The presence of an audience
49:13can arouse us, which can improve
49:15performance on easy tasks but hinder it
49:18on difficult ones. For example, a runner
49:21might run faster when people are
49:23cheering them on.
49:26111. Bystander effect. The bystander
49:30effect is the tendency for a bystander
49:32to be less likely to provide aid when
49:34others are present. We often assume that
49:37someone else will help, a phenomenon
49:40known as diffusion of responsibility.
49:43This is why someone in distress might
49:45not get help in a crowded area.
49:48112 prejudice. Prejudice is an
49:52unjustifiable and usually negative
49:54attitude toward a group and its members.
49:57It generally involves stereotyped
49:59beliefs, negative feelings, and a
50:02predisposition to discriminatory action.
50:05Making assumptions about someone based
50:07on their group membership before you
50:09even meet them is an act of prejudice.
50:13Section 12, Psychological Disorders and
50:16Treatment.
50:18Finally, let's turn to a crucial area of
50:21psychology, psychological disorders and
50:24their treatment. This section covers
50:26common mental health conditions and the
50:28therapeutic approaches used to help
50:30people manage their symptoms and improve
50:32their well-being.
50:34113. Psychological disorder. A
50:38psychological disorder is a syndrome
50:40marked by a clinically significant
50:42disturbance in an individual's
50:44cognition, emotion regulation, or
50:46behavior. These patterns cause distress
50:50or impairment in social, occupational,
50:53or other important areas of functioning.
50:56For example, struggling to complete
50:58daily tasks due to overwhelming symptoms
51:00is a sign of a disorder.
51:03114. Anxiety disorder.
51:07Anxiety disorders are characterized by
51:09excessive and persistent fear, worry, or
51:12nervousness. These feelings are often
51:15disproportionate to the situation and
51:18can interfere with daily life. For
51:20example, feeling intense panic and a
51:23desire to escape in crowded spaces could
51:26be a sign of an anxiety disorder like
51:28agorophobia.
51:30115. Depression.
51:33Depression is a mood disorder that
51:35causes a persistent feeling of sadness
51:38and a loss of interest in activities
51:40once enjoyed. It can lead to a variety
51:43of emotional and physical problems and
51:45can decrease a person's ability to
51:47function at work and at home. A key sign
51:51is losing all motivation for hobbies you
51:54once loved.
51:56116. Bipolar disorder. Bipolar disorder
52:00is a mood disorder characterized by
52:02extreme mood swings that include
52:04emotional highs known as mania or
52:07hypomomania and lows known as
52:10depression.
52:11Someone with bipolar disorder might feel
52:14overly energized, talkative, and
52:16euphoric one week and then fall into a
52:19state of deep sadness and exhaustion the
52:21next.
52:23117. Schizophrenia.
52:26Schizophrenia is a serious mental
52:28disorder that affects how a person
52:30thinks, feels, and behaves. People with
52:34schizophrenia may seem like they have
52:36lost touch with reality, experiencing
52:38distorted thinking, perception, and
52:41emotion. Symptoms can include hearing
52:44voices that aren't there, or holding
52:46delusional beliefs.
52:49118. Psychotherapy.
52:52Psychotherapy is a general term for
52:54treating mental health problems by
52:56talking with a psychiatrist,
52:58psychologist, or other mental health
53:00provider. Through conversation and
53:03various psychological techniques,
53:05individuals can learn about their
53:07condition, moods, feelings, thoughts,
53:10and behaviors and develop coping
53:13strategies.
53:15119. Cognitive behavioral therapy.
53:18Cognitive behavioral therapy or CBT is a
53:22common type of talk therapy that helps
53:25you recognize inaccurate or negative
53:27thinking so you can view challenging
53:29situations more clearly and respond more
53:32effectively. A core part of CBT is
53:35challenging the negative beliefs that
53:37fuel anxiety or depression.
53:41120. Medication.
53:43In many cases, medication is used
53:46alongside psychotherapy to treat mental
53:48disorders. These drugs can affect brain
53:51chemistry to help reduce symptoms and
53:53improve mood and thinking. For example,
53:57taking anti-depressants can help
53:58regulate serotonin levels to alleviate
54:01the symptoms of depression.
54:04121. Stigma. Finally, stigma refers to
54:08the negative, often unfair beliefs that
54:11society or a group holds about
54:13something. The stigma surrounding mental
54:16illness can cause people to feel ashamed
54:18and can prevent them from seeking the
54:20help they need due to a fear of judgment
54:23from others.
54:24Thanks for joining us on this ultimate
54:26[music] guide. If you found this video
54:28helpful, be sure to like, subscribe, and
54:31share it with anyone else who might
54:33[music] be interested. Let us know in
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