Comprehensive Psychology Final Exam Review Notes

Chapter 1: Introduction to Psychology

What is Psychology?

• Psychology is the scientific study of behavior and mental processes.

• It seeks to understand individuals and groups by establishing general principles and researching specific cases.

• Example: Studying how stress affects decision-making in college students.

Historic and Contemporary Areas of Psychology

• Major perspectives include structuralism, functionalism, psychoanalysis, behaviorism, humanism, cognitive psychology, and biopsychology.

• Contemporary areas include clinical, cognitive, developmental, social, and biological psychology.

• Differences: Perspectives focus on broad approaches (e.g., behaviorism emphasizes observable behavior), while areas are specialized fields (e.g., clinical psychology focuses on mental health disorders).

Chapter 2: Psychological Research

Correlation and Causation

• Correlation measures the relationship between two variables but does not imply causation.

• Positive correlation: Both variables increase or decrease together.

• Negative correlation: One variable increases as the other decreases.

• Key Point: Correlation does not equal causation.

Research Methods

• Naturalistic observation: Observing subjects in their natural environment.

• Lab observation: Controlled environment for observation.

• Case studies: In-depth analysis of a single individual or group.

• Surveys: Collecting data from large groups via questionnaires or interviews.

• Experiments: Manipulating variables to determine cause and effect.

Sampling and Variables

• Random sample: Every member of the population has an equal chance of being selected.

• Representative sample: Reflects the characteristics of the population.

• Confounding variables: Uncontrolled factors that can affect the outcome of an experiment.

• Placebo effect: Changes in behavior due to participants' expectations, not the treatment itself.

Chapter 3: Biopsychology

Neuron Structure and Function

• Neurons are the basic units of the nervous system, consisting of dendrites, soma (cell body), axon, terminal buttons, and myelin sheath.

• Function: Transmit electrical and chemical signals throughout the body.

Nervous System Divisions and Functions

• Peripheral Nervous System (PNS): Includes somatic (voluntary control) and autonomic (involuntary control) systems.

• Autonomic system: Sympathetic (arouses) and parasympathetic (calms) divisions.

• Central Nervous System (CNS): Brain and spinal cord.

The Brain

• Structures: Amygdala (emotion), cerebellum (coordination), hypothalamus (homeostasis).

• Lobes: Frontal (reasoning), parietal (sensation), occipital (vision), temporal (hearing).

• Imaging: EEG (electrical activity), MRI (structure), PET (function).

Chapter 4: States of Consciousness

Theories of Why We Sleep

• Adaptive theory: Sleep patterns evolved to avoid predators.

• Restorative theory: Sleep restores body and mind.

Theories of Why We Dream

• Wish fulfillment (Freud): Dreams express unconscious desires.

• Information processing: Dreams help process daily experiences.

• Activation-synthesis: Brain synthesizes random neural activity during sleep.

Sleep Disorders

• Insomnia: Difficulty falling or staying asleep.

• Somnambulism: Sleepwalking.

• REM behavior disorder: Acting out dreams.

• Narcolepsy: Sudden sleep attacks.

• Night terrors: Episodes of intense fear during sleep.

Chapter 5: Sensation & Perception

Definitions and Examples

• Sensation: Detection of physical energy by sensory organs.

• Perception: Interpretation of sensory information.

• Optical illusions: Demonstrate how perception can differ from reality.

Waves and Wavelengths

• Amplitude: Height of a wave (intensity).

• Wavelength: Distance between peaks (color or pitch).

• Frequency: Number of waves per second.

Vision: Structures of the Eye

• Lens: Focuses light on the retina.

• Cornea: Protects the eye and bends light.

• Pupil: Regulates light entry.

• Iris: Controls pupil size.

• Retina: Contains photoreceptors for vision.

Chapter 6: Learning

Classical Conditioning

• Learning through association between a neutral stimulus and an unconditioned stimulus.

• Example: Pavlov's dogs salivating to a bell.

Operant Conditioning

• Learning through consequences (reinforcement or punishment).

• Continuous reinforcement: Reward after every response.

• Partial reinforcement: Reward after some responses.

• Partial reinforcement schedules: Fixed/variable ratio and interval schedules.

• Shaping: Gradually guiding behavior toward a desired outcome.

Observational Learning

• Learning by watching others (modeling).

• Example: Children imitating adult behaviors.

Chapter 7: Thinking & Intelligence

Concepts and Language

• Concepts: Mental groupings of similar objects, events, or people.

• Language: Semantics (meaning) and pragmatics (contextual use).

Problem-Solving

• Strategies: Algorithms (step-by-step), heuristics (shortcuts).

• Pitfalls: Biases and errors in reasoning.

Intelligence Measurement

• Standardized tests measure intelligence (IQ).

• Test standardization: Ensures consistency and reliability.

Chapter 8: Memory

The Three Main Elements of Memory

• Encoding: Processing information into memory.

• Storage: Maintaining information over time.

• Retrieval: Accessing stored information.

• Types of retrieval: Recall, recognition, relearning.

• Types of long-term memory: Explicit (declarative) and implicit (procedural).

Problems with Memory

• Encoding failure: Information never enters memory.

• Amnesia: Loss of memory due to injury or illness.

• Forgetting: Often due to retrieval failure.

Strategies for Enhancing Memory

• Rehearsal: Repetition of information.

• Elaborative rehearsal: Linking new information to existing knowledge.

• Chunking: Grouping information into meaningful units.

• Mnemonics: Memory aids (e.g., acronyms).

Chapter 9: Lifespan Development

Developmental Psychology & Key Issues

• Focuses on physical, cognitive, and social change throughout the lifespan.

• Nature vs. nurture: Debate over the influence of genetics and environment.

Lifespan Theories and Prominent Psychologists

• Piaget's cognitive theory: Describes stages of cognitive development (sensorimotor, preoperational, concrete operational, formal operational).

• Key skills: Object permanence (understanding objects exist when out of sight), conservation (understanding quantity remains the same despite changes in shape).

Attachment

• Emotional bond between child and caregiver.

• Example: Secure attachment leads to better social and emotional outcomes.

Chapter 15: Psychological Disorders

Perspectives on Causes

• Supernatural: Disorders caused by spiritual forces (historical view).

• Biological: Disorders have physiological causes (e.g., genetics, brain chemistry).

• Biopsychosocial: Combination of biological, psychological, and social factors.

The DSM-5

• Diagnostic and Statistical Manual of Mental Disorders, 5th Edition: Standard classification system for mental disorders.

Types of Disorders and Symptoms

• Anxiety disorders: Excessive fear or anxiety (e.g., generalized anxiety disorder, phobias).

• Mood disorders: Disturbances in mood (e.g., depression, bipolar disorder).

• Obsessive-compulsive disorder (OCD): Repetitive thoughts and behaviors.

• Post-traumatic stress disorder (PTSD): Persistent distress after trauma.

• Personality disorders: Enduring patterns of behavior that deviate from cultural expectations.

Chapter 16: Therapy and Treatment

Psychotherapy Approaches

• Behavior Therapy: Uses conditioning techniques (e.g., aversive conditioning, exposure therapy, systematic desensitization) to change maladaptive behaviors.

• Cognitive-Behavioral Therapy (CBT): Focuses on changing negative thought patterns and behaviors; addresses cognitive distortions.

Advantages of Individual and Group Therapy

• Individual therapy: Personalized attention and tailored interventions.

• Group therapy: Peer support, shared experiences, and social learning.

Biomedical Therapy

• Uses medications or medical procedures to treat psychological disorders.

• SSRIs: Treat depression and anxiety by increasing serotonin levels.

• Antipsychotics: Treat symptoms of schizophrenia and other psychoses.

• Stimulants: Used for attention-deficit/hyperactivity disorder (ADHD).