Psychological Perspectives
Humanism
Focuses on personal growth, self-actualization, and free will.
Key theorists: Abraham Maslow (Hierarchy of Needs), Carl Rogers (Self-Concept).
Emphasizes the importance of love, acceptance, and personal potential.
Example: A person striving to become the best version of themselves through therapy.
Psychodynamic
Emphasizes unconscious drives, conflicts, and early childhood experiences.
Key theorist: Sigmund Freud (Psychoanalytic Theory).
Explores how unresolved conflicts from childhood shape behavior and personality.
Example: Repressed memories from childhood influencing adult behavior.
Behavioral
Focuses on observable behavior, learned through reinforcement or punishment.
Key theorists: B.F. Skinner (Operant Conditioning), John Watson (Classical Conditioning).
Emphasizes behavior modification through reinforcement.
Example: A child being rewarded with candy for good behavior, reinforcing the behavior.
Socio-Cultural
Studies how culture, environment, and social interactions influence behavior.
Example: How different cultures view family roles or gender expectations.
Cognitive
Examines how we think, process, store, and retrieve information.
Key theorists: Jean Piaget (Cognitive Development), Lev Vygotsky (Social Development).
Example: Memory processes, problem-solving, and decision-making.
Biological
Examines brain structures, genetics, and chemicals to explain behavior.
Focus on how genetics, neurotransmitters, and the brain impact behavior.
Example: Genetic predispositions to mental illnesses like schizophrenia.
Evolutionary
Considers how natural selection shapes behaviors that aid survival.
Example: Fear of snakes is an evolutionary adaptation for survival.
Research Methods
Case Study
In-depth study of an individual or small group to reveal universal principles.
Example: Phineas Gage’s injury and how it affected his behavior.
Experiment
Manipulating variables to establish cause-and-effect relationships.
Includes control and experimental groups.
Example: Studying the effect of sleep on memory by controlling sleep duration.
Longitudinal Study
Follows the same subjects over a long period to track changes.
Example: Tracking cognitive development in children over several years.
Cross-Sectional Study
Compares different groups at one point in time.
Example: Comparing different age groups' reaction times.
Observation
Watching and recording behavior without interfering.
Example: Observing children playing in a park to study social behaviors.
Correlation
Positive Correlation
Two variables increase or decrease together.
Example: The more you exercise, the better your physical health.
Negative Correlation
One variable increases as the other decreases.
Example: As stress levels increase, sleep quality tends to decrease.
Parts of the Brain
Amygdala
Controls emotions like fear and aggression.
Example: Activates when faced with a threatening situation.
Hippocampus
Processes and stores new memories.
Example: Damage to the hippocampus results in memory loss.
Medulla
Regulates breathing, heart rate, and vital functions.
Example: Involved in controlling automatic functions like heartbeat.
Hypothalamus
Maintains homeostasis; regulates hunger, thirst, and temperature.
Example: Tells the body to sweat when overheated.
Cerebral Cortex
Outer brain layer responsible for higher-level thinking and processing.
Example: Decision-making, language, and problem-solving.
Cerebellum
Coordinates balance, posture, and fine motor movements.
Example: Helps you maintain balance while riding a bike.
Pons
Assists in sleep and communication between brain regions.
Example: Regulates REM sleep.
Thalamus
Relays sensory information to other brain areas.
Example: Processes sensory inputs like touch, sight, and sound.
Frontal Lobe
Controls decision-making, problem-solving, and movement.
Example: Involved in planning and reasoning tasks.
Broca’s Area
Allows speech production.
Damage can result in Broca’s aphasia (difficulty speaking).
Nervous System
Sympathetic Nervous System
Activates “fight or flight” response.
Example: Increased heart rate and blood flow during stress.
Parasympathetic Nervous System
Restores calm; “rest and digest” state.
Example: Slows heart rate and promotes digestion after eating.
Drugs
Stimulants
Increase brain activity (e.g., caffeine, amphetamines).
Example: Cocaine increases dopamine, resulting in heightened alertness.
Depressants
Slow down brain and body functions (e.g., alcohol, tranquilizers).
Example: Alcohol inhibits neurotransmission and can impair motor skills.
Sleep Cycle
Sleep Cycle
Alternates between NREM (non-dreaming) and REM (dreaming) stages.
Lasts approximately 90 minutes and repeats throughout the night.
Hormones/Endocrine System
Hormones
Chemical messengers released by glands that regulate body processes.
Example: Insulin regulates blood sugar levels.
Endocrine System
A network of glands that secrete hormones into the bloodstream to regulate processes like growth, metabolism, and reproduction.
Example: The thyroid gland regulates metabolism.
Pituitary Gland
The “Master Gland” that controls growth and other endocrine glands.
Example: Produces growth hormone (GH).
Neurotransmitters
Dopamine
Influences movement, pleasure, and learning.
Example: Low dopamine levels are associated with Parkinson's disease.
Serotonin
Affects mood, sleep, and appetite.
Example: Low serotonin levels can contribute to depression.
Acetylcholine
Enables muscle action and memory.
Example: Involved in memory processes and muscle contractions.
Endorphins
Reduce pain and produce pleasure (natural painkillers).
Example: Released during exercise, leading to the "runner's high."
Nature vs. Nurture
Nature
Traits and behaviors are influenced by genetics and biology.
Example: Inherited traits like eye color and predisposition to certain diseases.
Nurture
Environment and experience shape behavior and traits.
Example: Parenting style and childhood experiences affecting personality development.
Sensation
Semicircular Canals
Structures in the ear responsible for balance.
Photoreceptor Cells
Cells in the retina (rods/cones) that detect light.
Gustation
Sense of taste.
Vestibular Sense
Sense of balance and spatial orientation.
Kinesthetic Sense
Awareness of body movement and positioning.
Audition
Sense of hearing.
Perception
Monocular Cues
Depth cues visible with one eye.
Example: Linear Perspective and Relative Size.
Memory
Encoding
Processing information into a usable form for memory.
Example: Visual encoding (remembering a face).
Storage
Maintaining information over time.
Example: Long-term memory stores information for future use.
Retrieval
Accessing stored memories.
Example: Recalling a friend’s phone number.
Thinking
Functional Fixedness
Inability to see a new use for an object.
Example: Not thinking to use a coin to open a bottle.
Divergent Thinking
Generating creative solutions or multiple answers.
Example: Brainstorming many solutions to a problem.
Growth Mindset
Belief that abilities can develop through effort.
Example: Viewing challenges as opportunities to learn.
Fixed Mindset
Belief that abilities are unchangeable.
Example: Believing you're "just not good" at math.
Mental/Perceptual Set
Tendency to approach problems the same way.
Example: Solving a puzzle with the same method every time, even if it's ineffective.
Heuristics
Simple thinking strategies for efficient decision-making.