AP PSYCH

Unit Zero: Research Design Basic Vocabulary

• Hypothesis: A tentative explanation that must be falsifiable—it should be able to be supported or rejected.

• Operational Definition: A clear, precise, quantifiable definition of your variables that allows for replication and collection of reliable data.

• Qualitative Data: Descriptive data, e.g., eye color.

• Quantitative Data: Numerical data—considered ideal and necessary for statistics.

• Population: The entire group that the research could apply to.

• Sample: The specific individuals (or person) selected for the study.

Research Designs

CORRELATION

• Correlation: Identify relationships between two variables.

• Advantages: Useful for situations where experiments are unethical.

• Disadvantages:   - Correlation Does Not Equal Causation: It does not prove that one variable causes the other.   - Directionality Problem: Uncertain about which variable is causing the other; e.g., does depression cause low self-esteem, or vice-versa, or is there a third variable?   - Third Variable Problem: A different variable that impacts both variables; e.g., ice cream sales and murder rates.   - Positive Correlation: Both variables increase or decrease together.   -

• Negative Correlation: As one variable increases, the other decreases.   

• - The strength of the relationship is indicated by the absolute value of the correlation coefficient, which ranges from -1 to 1. A stronger relationship is indicated by numbers closer to 1 or -1.

EXPERIMENTS

• Purposefully manipulate variables to determine cause and effect.

• Advantages: The only method that establishes cause and effect relationships.

• Disadvantages: Can be unethical or overly artificial.   - Independent Variable: The variable that is manipulated by the researcher.     - Experimental Group: The group that receives the treatment.     - Control Group: The baseline group that does not receive the treatment (only one control group can exist).   - Dependent Variable: The variable that is measured and is affected by the independent variable.

Vocab Unique to Experiments

• Placebo Effect: The observed effect in behavior caused by the placebo; typically accounted for using blinded studies.

• Double-Blind: Neither the participant nor the experimenter knows who receives which condition.

• Single-Blind: Only the participant is unaware of the condition assigned to them.

• Confound: An error or flaw in a study unintentionally introduced, known as a confounding variable.

Random Assignment

• Assigning participants to control or experimental groups at random increases the chance of equal representation, enhancing the ability to say there is a cause-and-effect relationship.

OTHER STUDY TYPES

• Naturalistic Observation: Observing people in their natural settings.   - Advantages: High real-world validity.   - Disadvantages: Cannot establish cause and effect.

• Case Study: In-depth study of one individual (usually).   - Advantages: Collects extensive information.   - Disadvantages: Cannot establish cause and effect.

• Meta-Analysis: Combines multiple studies to increase sample size and examine effect sizes.

STATISTICS

Descriptive Statistics

• Illustrate the shape of the data.  - Measures of Central Tendency:    - Mean: Average, used with normal distribution.    - Median: Middle number, used with skewed distribution.    - Mode: The most frequently occurring number.      - Bimodal: Data with two modes, can indicate good/bad scores.  - Skewness: Caused by outliers.    - Negative Skew: Mean is lower than median.    - Positive Skew: Mean is higher than median.  - Measure of Variation:    - Range: The distance between the smallest and largest numbers in the data set.    - Standard Deviation: The average amount the scores deviate from the mean (higher values indicate greater spread).

Inferential Statistics

• Establish the significance of results, meaning they are not due to chance (research manipulation caused the differences).   - Statistical Significance: Usually below p < 0.05.   - Effect Size: Indicates practical significance; larger values are better.

ETHICAL GUIDELINES

(Approval needed from an Institutional Review Board (IRB) for research involving people)

• Confidentiality: Ensures participant names and identities are kept secret.

• Informed Consent: Participants must agree to be part of the study.

• Informed Assent: Both minors and their parents must agree to participation.

• Debriefing: Participants must be informed of the true purpose of the study, especially if deception was involved.

• Deception: Must be justified as necessary for the study's outcomes.

• No Harm: Ensures there is no mental or physical harm to participants.

Additional Vocabulary

• Surveys: Often turned into correlations. Subject to self-report bias due to:   - Social Desirability Bias: Participants may lie to appear favorable.   - Wording Effects: How questions are framed can impact responses.

• Random Sample (Selection): Participants are chosen so that everyone has a chance to participate; this increases generalizability.

• Representative Sample: Sample mimics the general population demographics (ethnicity, gender, age).

• Convenience Sample: Selection of participants based on availability; leads to lesser representativeness.

• Sampling Bias: Sample is not representative due to convenience selection.

• Cultural Norms: Behaviors of specific groups can influence research outcomes.

• Experimenter Bias / Participant Bias: Expectations from either the experimenter or participant can influence results.

• Cognitive Bias: Judgment and decision-making biases:   - Confirmation Bias: Focusing on information that supports preexisting beliefs.   - Hindsight Bias: Believing you knew something was going to happen after it occurred.   - Overconfidence Bias: Overestimating one's own knowledge or abilities.   - Hawthorne Effect: Participants change their behavior due to being observed.

Important Cram Packet Notes

• Do not confuse random sampling with random assignment. Sampling is for generalization, while assignment is for determining cause and effect.

Biological Basis Pillar

Terminology

• NT: Neurotransmitter

• AP: Action Potential

• NS: Nervous System

Heredity vs Environment

• Evolutionary Psychology: Studies the effect of natural selection on behavior.

• Heredity (Nature): Influence of genes on behavior.

• Environment (Nurture): Influence of external situations on behavior.   - Nature vs. Nurture: Both factors play a role.     - Twin/adoption studies indicate that identical twins raised apart show behavioral differences, demonstrating the roles of both genetics and environment.

Nervous System

Divisions

• Central Nervous System (CNS): Includes the brain and spinal cord.

• Peripheral Nervous System (PNS): The remainder of the nervous system that relays messages to and from the CNS.   - Somatic Nervous System: Controls voluntary movement and consists of sensory and motor neurons.   - Autonomic Nervous System: Controls involuntary functions (around organs like the heart and lungs).     - Sympathetic Nervous System: Activates the fight or flight response.     - Parasympathetic Nervous System: Manages the rest and digest activities.

Neurons and Neural Firing

• Neurons: Basic building block of the nervous system.

• Dendrites: Receive neurotransmitters.

• Axon: Transmits action potentials.

• Myelin Sheath: Speeds up action potentials and protects axons.

• Synapse: The gap between neurons.

• Types of Neurons:     - Sensory Neurons: Transfer sensory signals to the brain.     - Motor Neurons: Transmit signals from the brain to muscles.     - Interneurons: Connect sensory and motor neurons and are involved in reflex actions.   - Reflex Arc: Allows for quick responses by routing signals through the spinal cord before reaching the brain.   

Neurotransmitters (NT)

• Classification: NTs may be excitatory (increase action potentials) or inhibitory (decrease action potentials).   - Major Neurotransmitters:    - GABA: Major inhibitory neurotransmitter.    - Glutamate: Major excitatory neurotransmitter.    - Dopamine: Associated with reward, movement, and addiction.    - Serotonin: Related to mood, emotion, and sleep. Low levels are associated with depression.    - Acetylcholine (ACh): Important for memory and muscle movement; low levels associated with Alzheimer's disease.    - Norepinephrine: Related to arousal and action; low levels can lead to depression.    - Endorphins: Help diminish pain perception.    - Substance P: Involved in pain regulation.

Hormones

• Oxytocin: Bonding, childbirth, and lactation.

• Adrenaline: Triggers the fight or flight response.

• Leptin: Tells the body to stop eating.

• Ghrelin: Signals hunger.

• Melatonin: Regulates sleep.

Drug Effects

• Agonist: Mimics neurotransmitters.

• Antagonist: Blocks neurotransmitter actions.

• Reuptake: The process of unused neurotransmitters being reabsorbed by the sending neuron. SSRIs block reuptake to treat depression.

Psychoactive Drugs

• Classes:   - Depressants: Decrease nervous system activity (e.g., alcohol).   - Stimulants: Increase nervous system activity (e.g., caffeine, cocaine).   - Hallucinogens: Altered perception (e.g., marijuana).   - Opioids: Pain relief (e.g., heroin).

• Tolerance: Needing more of a drug for the same effect.

• Addiction: Compulsive use of a substance despite negative consequences.

• Withdrawal: Physical symptoms that occur upon cessation of substance use.

The Brain

Key Structures

• Cerebellum: Coordination, movement, and procedural memory.

• Brainstem/Medulla: Controls vital functions like heart rate and breathing.

• Reticular Activating System: Involved in arousal, alertness, and sleep.

• Cerebral Cortex: Outer layer of the brain responsible for higher order functions.   - Limbic System: Emotion and memory processing areas.     - Amygdala: Processes emotions, especially fear.     - Hippocampus: Involved in memory formation.     - Hypothalamus: Regulates homeostasis and reward systems.   - Thalamus: Sensory relay center (excluding smell).   - Pituitary Gland: The master gland that regulates hormones.

Brain Lobes

• Occipital Lobe: Responsible for vision.

• Frontal Lobe: Involved in decision-making, planning, judgment, movement, and personality.   - Prefrontal Cortex: Executive functions like planning and impulse control.   - Motor Cortex: Controls voluntary movements.

• Parietal Lobe: Responsible for processing tactile information (touch).   - Somatosensory Cortex: Maps sensory inputs related to touch.

• Temporal Lobe: Involved in hearing and face recognition.

• Association Areas: Map input from multiple lobes to integrate information.

• Language Areas: Damage to areas in the left hemisphere (Broca's and Wernicke's areas) results in aphasia.

Brain Plasticity

• The brain changes in response to damage and learning experiences.

Endocrine System

• Sends hormones throughout the body.

• Pituitary Gland: Regulated by hypothalamus, releases growth hormones.

Brain Research Techniques

• EEG: Broad measure of brain activity.

• fMRI: Measures specific brain activity based on blood oxygen levels.

• Lesion Studies: Damage to brain tissue to study effects.

Diseases and Disorders to Know

• Multiple Sclerosis: Deterioration of myelin sheath leading to mobility issues.

• Myasthenia Gravis: Blockage of acetylcholine leading to muscle weakness.

• Blindsight: Individuals can respond to visual stimuli without conscious awareness.

• Prosopagnosia: Inability to recognize faces due to brain damage.

• Broca's Aphasia: Difficulty producing speech from damage to Broca's area.

• Wernicke's Aphasia: Difficulty understanding speech from damage to Wernicke's area.

• Phantom Limb Pain: Perceived pain in an amputated limb due to brain plasticity.

• Epilepsy: Seizures resulting from neurotransmitter imbalances.

• Alzheimer's Disease: Memory loss associated with the destruction of acetylcholine.

Sleep

• Consciousness: Awareness of cognitive processes.

• Circadian Rhythms: Biological clock regulating sleep and temperature.   - Disruptions can lead to issues like jet lag.

• Brain Wave Patterns:   - Beta Waves: Active awake state.   - Alpha Waves: Drowsy but alert.   - NREM Stages:     - NREM 1: Light sleep, hypnagogic sensations.     - NREM 2: Sleep spindles present.     - NREM 3: Deep sleep.   - REM Sleep: Dreams occur; characterized by brain activity similar to waking.   - Entire Cycle: Lasts about 90 minutes, with REM stages increasing as night goes on.   - REM Rebound: Increased REM sleep following deprivation.

Dream Theories

• Activation-Synthesis Theory: Dreams are the brain's attempt to make sense of random neural activity.

• Consolidation Theory: Dreams process and consolidate memories.

Why is Sleep Necessary?

• Memory Consolidation: Essential for memory storage.

• Restoration: Regeneration of immune system and energy.

Sleep Disorders

• Insomnia: Difficulty falling or staying asleep often linked to stress.

• Somnambulism (Sleepwalking): Occurs during deep NREM sleep.

• Narcolepsy: Sudden fall into REM sleep.

• Sleep Apnea: Breathing interruptions during sleep, often linked to obesity.

• REM Behavior Disorder: Loss of paralysis during REM allows for acting out dreams.

Sensation & Perception

Sensation Vocabulary

• Sensation: Reception of sensory stimuli from the environment.

• Transduction: Conversion of stimuli into action potentials for neural processing.

• Perception: The brain's interpretation of sensory information.

• Absolute Threshold: The minimum stimulus level detected 50% of the time.

• Just Noticeable Difference (JND): The minimum difference needed to detect change between stimuli.   - Weber's Law: The difference must differ by a constant proportion based on the initial stimulus intensity.

• Synesthesia: Blending of senses (e.g., tasting colors).

• Sensory Adaptation: Reduced sensitivity resulting from constant stimulation (e.g., nose blindness).

Visual System

• Lens: Focuses light onto the retina.

• Retina: Contains photoreceptors.   - Rods: Detect black/white and are more prevalent in dim light.   - Cones: Detect color and function in bright light (red, green, blue).

• Ganglion Cells: Form the optic nerve and trigger the opponent process theory.

• Blind Spot: Area where the optic nerve exits the eye; no photoreceptors available.

Visual System Vocabulary

• Accommodation: Lens curvature changes to focus images.

• Nearsightedness: Clear vision for near objects but blurry for far.

• Farsightedness: Clear vision for far objects but blurry for near.

Theories of Color Vision

• Trichromatic Theory: Three types of cones respond to different light wavelengths.     - Blue: short wavelengths.     - Green: medium wavelengths.     - Red: long wavelengths.

• Opponent Process Theory: Color perception depends on contrasting pairs processed in ganglion cells (e.g., red-green, blue-yellow, black-white).

Auditory System

• Properties of Sound:   - Wavelength: Determines pitch; longer wavelengths = lower pitch.   - Amplitude: Determines loudness; higher amplitudes = louder sounds.

Theories of Hearing

• Place Theory: The location where hair cells bend corresponds to high-frequency sounds.

• Frequency Theory: The rate of action potentials corresponds to the frequency of low sounds.

• Volley Theory: Groups of neurons fire action potentials out of synchronization.

• Sound Localization: Determined by which ear hears the sound first.

Other Hearing Issues

• Conduction Deafness: Damage to ear structures hindering sound transmission.

• Sensorineural Deafness: Damage to the cochlea or auditory nerve, often due to aging or noise exposure.

Other Senses

• Vestibular: Balance; located in the semicircular canals of the inner ear.

• Kinesthetic: Body position awareness without visual input.

• Pain: Explained by Gate-Control Theory, indicating the interaction between sensory and cognitive processes.

• Taste (Gustation): Six receptors distinguish between tastes (bitter, salty, sweet, sour, umami, oleogustus). Taste perception interacts with olfaction for strength.

• Smell (Olfaction): The only sense that bypasses the thalamus; pheromones signal attraction within species.

Cognition Pillar

Perception

• Top-Down Processing: Begins with the whole; prior expectations shape interpretation of the parts (e.g., painting with faces).

• Bottom-Up Processing: Starts with sensory information to construct a whole concept (e.g., a dog formed from dots).

• Schemas: Preexisting mental frameworks to categorize information.

• Perceptual Set: The influence of context on perception, which can speed processing.

Gestalt Psychology

• Gestalt Principles: Focus on how we perceive wholes instead of just parts.   - Figure/Ground: Differentiating a figure from its background.   - Closure: Completing incomplete figures in perception.   - Proximity: Grouping nearby objects together.   - Similarity: Grouping similar elements.

• Constancies: Recognizing objects remain the same despite changes in sensory input (size, shape, brightness).

• Selective Attention: The tendency to focus on one thing while ignoring others.    - Inattentional Blindness: Not noticing a visible object due to attention focus on another task.    - Change Blindness: Failing to notice a change in a scene.    - Cocktail Party Effect: Personal awareness triggered by hearing one's name amidst a crowd.

Depth Perception Cues

• Binocular Depth Cues: (3D image formation)   - Retinal Disparity: Different images projected on each retina help gauge depth.   - Convergence: Strain in eyes increases as objects approach.

• Monocular Depth Cues: (2D image to perceive depth)   - Interposition: Overlapping images signify closer objects.   - Relative Size: Smaller objects in view are perceived as further away.   - Linear Perspective: Parallel lines converge in the distance (railroad tracks).   - Relative Clarity: Hazy objects appear more distant.   - Texture Gradient: Coarser textures appear closer.

Thinking and Problem Solving

• Concepts: Mental categories to group objects, events, and characteristics.

• Prototypes: Ideal examples against which instances are compared.

• Algorithms: Step-by-step procedures guaranteed to yield a solution.

• Heuristics: Shortcut strategies that might not guarantee a solution:   - Representative Heuristic: Judgments based on stereotypes or experiences.   - Availability Heuristic: Judgments based on immediate information that comes to mind.

• Metacognition: Reflecting on one’s thought processes.

• Mental Set: Persisting in using a previously successful strategy for a new problem.

• Functional Fixedness: Inability to see new uses for familiar objects.

• Sunk Cost Fallacy: Continuing an endeavor to justify prior investments even when it may not be beneficial.

• Gambler’s Fallacy: Assuming that a choice is due for a certain outcome because it hasn't occurred recently.

• Divergent Thinking: The ability to come up with various answers to problems; linked to creativity.

• Convergent Thinking: Focused on finding a single best answer.

• Executive Functioning: Comprises skills like planning and organizing.

Memory

Encoding

• Automatic Encoding: Information received without effort (e.g., what one had for breakfast).

• Effortful Encoding: Requires work (e.g., studying).

• Levels of Processing: Deep processing enhances retention through meaning emphasis:   - Structural Encoding: Focus on the physical structure.   - Phonemic Encoding: Focus on auditory qualities.   - Semantic Encoding: Focus on meaning for better recall.

• Elaborative Rehearsal: Strategies to maximize encoding:   - Imagery: Linking images to information.   - Dual Coding: Utilizing multiple processing methods to remember.   - Chunking: Breaking down complex information into manageable units.   - Mnemonics: Techniques for improving memory by leveraging patterns (e.g., acronyms).

• Context-Dependent Memory: Recall is improved if in the same context as learning.

• State-Dependent Memory: Optimal recall occurs when in the same mental or physical state.

• Mood Congruent Memory: The tendency to recall memories consistent with one’s current mood.

• Forgetting Curve: Rapid loss of memory initially, tapering off over time.

• Distributed Practice (Spacing Effect): Studying over time is more effective than cramming.

• Testing Effect: Enhanced retention through periodic quizzing.

Storage

• Multi-Store Model: Includes Sensory Memory, Short Term Memory, and Long Term Memory.

• Sensory Memory: Briefly holds all incoming stimuli.   - Iconic Memory: Visual impressions lasting 0.3 seconds.   - Echoic Memory: Auditory impressions lasting 2-3 seconds.

• Short Term Memory (STM): Lasts roughly 30 seconds and holds 7±2 items.   - Maintenance Rehearsal: Repeating information to extend STM duration.

• Long Term Memory (LTM): Information retained indefinitely.   - Explicit Memory: Requires conscious effort, including:     - Episodic Memory: Life events.     - Semantic Memory: Factual knowledge.   - Implicit Memory: Unconscious memory, such as skills     - Classical Conditioning: Implicit learning through associations.     - Priming: Exposure to a stimulus influences response to later stimuli.     - Procedural Memory: Skills and tasks we perform automatically.

• Working Memory Model: Divides STM into visual-spatial and phonological components with a central executive that integrates them before transmitting information to LTM.

Organization of Memory

• Hierarchies: Clusters of related information stored in a tiered structure.

• Categorical Storage: Grouping information into categories.

• Semantic Networks: Webs of interconnected concepts.   - Tip of the Tongue Phenomenon: Knowing that something can’t be recalled when stuck elsewhere in the memory network.

• Assimilation: Incorporating new information into existing schemas.

• Accommodation: Modifying existing schemas to include new information.

• Memory Storage:   - Acetylcholine: Important for episodic and semantic memory in the hippocampus.   - Cerebellum: Related to implicit/procedural memory.   - Amygdala: Related to emotional memory.   - Frontal Lobe: Involved in memory encoding and retrieval.

• Long-Term Potentiation: Strengthening synaptic connections with repeated activation, critical for memory consolidation.

Retrieval

• Serial Position Effect: Tendency to recall the first (primacy) and last (recency) items on a list better than those in the middle.

• Recall vs Recognition:   - Recall: Retrieving information without cues (like essays).   - Recognition: Identifying information with cues (like multiple-choice).

• Repressed Memories: Memories unconsciously buried to defend the ego.

• Encoding Failure: Failure to recall information due to initial inattentiveness.

• Interference:   - Proactive Interference: Old information impedes recall of new information.   - Retroactive Interference: New information impedes recall of old information.

• Constructive Memory: Updating memories based on new information or associations can lead to inaccuracies.

• Source Amnesia: Forgetting where or how information was acquired.

• Misinformation Effect: Distortion of memory due to misleading information.

• Imagination Inflation: Confidence in the occurrence of an event increases after imagining it.

• Anterograde Amnesia: Inability to form new memories.

• Retrograde Amnesia: Inability to recall past memories.

Intelligence and Achievement

Intelligence Theories

• Single Form of Intelligence (g factor): Speaks to a general intelligence underlying mental abilities.

• Multiple Intelligences: Recognition that intelligence is diverse, with strengths in varied areas.

IQ Testing

• First IQ Test Formula:   - Chronological Age: Actual age of the test subject.   - Mental Age: Performance compared to peers of the same age.   - A score of 100 is considered average, with a standard deviation (SD) of 15.

• Usage: IQ tests assist in educational services, diagnostic tools for learning disabilities, and gifted identification.

• Psychometrics: The field focused on test creation and measurement accuracy.

• Standardization: Consistent procedures for test administration and grading.

• Reliability: Consistency of results over time:   - Split-Half Reliability: Comparison of results from two halves of a test.   - Test-Retest Reliability: Consistency in results using the same test at different times.

• Validity: Measures the test's accuracy:   - Construct Validity: The test accurately gauges its intended measure.   - Predictive Validity: The ability of a test to forecast abilities or traits.

• Types of Tests:   - Aptitude Tests: Assess the capacity to learn new skills.   - Achievement Tests: Measure what an individual has learned.

Issues in Intelligence Testing

• Nature vs. Nurture: Both genetic and environmental factors contribute to IQ scores.

• Cultural and personal biases can impact interpretation of test results.

• Socioeconomic Status (SES) poses barriers for educational success and IQ test performance.

• Eugenics Movement: Related to misleading societal beliefs about intelligence and reproduction.

• Culture-Fair Tests: Attempts to minimize bias and promote fairness in testing.

• Stereotype Threat: Fear of confirming negative group stereotypes affects performance.

• Flynn Effect: Intelligence scores have increased over time due to socioeconomic improvements.

• Mindsets:   - Fixed Mindset: Intelligence is seen as static.   - Growth Mindset: Intelligence grows through effort and experience.

Development and Learning Pillar

Key Issues in Developmental Psychology

1. Nature vs. Nurture: Discusses the influence of genetics and environment.

2. Continuous vs. Discontinuous Development: Examines if development is gradual or in stages.

3. Stability vs. Change: Whether personality traits remain stable or shift over time.

• Cross-Sectional Study: Examines different age groups at one time; quick, inexpensive, but can confuse generational difference.

• Longitudinal Study: Follows the same individuals over time; detailed but costly and high dropout.

Physical Development

• Prenatal Development:   - Teratogens: Harmful agents (e.g., drugs) during pregnancy.

• Maturation: Instinctual course of development.

• Motor Skills:   - Gross Motor Skills: Large muscle movements (e.g., walking).   - Fine Motor Skills: Small muscle precision (e.g., writing).

• Reflexes: Innate responses that diminish over time (e.g., rooting reflex).

• Critical Periods: Times of essential development (e.g., language).

• Imprinting: Animals recognize first moving object (e.g., mother) after birth.

• Puberty: Onset of sexual maturity leading to rapid physical changes:   - Primary Sex Characteristics: Required for reproduction (e.g., ovaries, testes).   - Secondary Sex Characteristics: Non-reproductive traits (e.g., breast development).

Cognitive Development (Jean Piaget)

• Schemas: Frameworks for understanding.

• Assimilation: New information is integrated as is into existing schemas.

• Accommodation: Existing schemas are adjusted to incorporate new information.

• Sensorimotor Stage (0-2 years): Exploring the world without object permanence.

• Preoperational Stage (2-7 years): Use symbols but lack complex reasoning (e.g., conservation).

• Concrete Operational Stage (7-11 years): Logical thinking within concrete contexts.

• Formal Operational Stage (11-15 years): Abstract and hypothetical thinking.

• Problems with Piaget’s stages: May overemphasize distinct stages of development.

Vygotsky’s Theory

• Cognitive development is influenced by social processes and interactions.   - Zone of Proximal Development: Gap between what a child can do independently and what they can do with guidance.

Language Development

• Language: Symbolic system governed by rules.

• Phonemes: Basic units of sound.

• Morphemes: Smallest units of meaning.

• Grammar: Rules governing language use.

• Semantics: Rules for deriving meanings.

• Syntax: Rules for sentence structure.

• Stages of Language Development:   - Cooing Stage: Vowel sounds.   - Babbling Stage: Combinations of phonemes.   - One-Word Stage: Simple signaling of wants.   - Two-Word Stage (Telegraphic Speech): Combining words, often omitting less critical elements.

Socioemotional Development

• Temperament: Innate emotional response patterns in infants affecting attachment.   - Types include Easy, Difficult, Slow to Warm Up.

• Attachment: Developed through interactions with caregivers, evaluated through the Strange Situation paradigm.   - Secure Attachment: Distressed by separation but calms upon reunion.   - Insecure Attachment: Variants that either avoid or resist caregivers.

• Parenting Styles:   - Authoritarian: Demand strict adherence to rules.   - Permissive: Lacks structure and rules.   - Authoritative: Balances demand and responsiveness.

• Peer Relationships: Evolve from parallel play in childhood to reliance on peers during adolescence.

• Erikson’s Developmental Stages: Each stage features a crisis to resolve, influencing future competence and strength:   1. Trust vs. Mistrust (birth-1.5 years)   2. Autonomy vs. Shame/Doubt (1.5-3 years)   3. Initiative vs. Guilt (3-6 years)   4. Industry vs. Inferiority (6 years-puberty)   5. Identity vs. Role Confusion (adolescence)   6. Intimacy vs. Isolation (young adulthood)   7. Generativity vs. Stagnation (middle adulthood)   8. Integrity vs. Despair (late adulthood)

• Sociocultural Influences: Societal norms and expectations guide the timing of major life events.

Learning

Behaviorist Perspective

• Focuses on observable behaviors and applies learning theories.

Classical Conditioning

• Key Components:   - Unconditioned Stimulus (UCS): Naturally triggers a response.   - Unconditioned Response (UCR): Natural reaction to UCS.   - Conditioned Stimulus (CS): Trigger that elicits a response after conditioning.   - Conditioned Response (CR): Learned response to CS.

• Acquisition: Process of learning in classical conditioning.

• Extinction: Weakening of CR when the CS is presented alone.

• Spontaneous Recovery: Resurgence of CR after a break.

• Generalization: Responding similarly to similar stimuli.

• Discrimination: Responding only to the specific CS, not others.

Operant Conditioning

• Law of Effect: Behaviors followed by satisfying outcomes increase, while those followed by negative outcomes decrease.

• Reinforcements:   - Positive Reinforcement: Adding a positive outcome to increase behavior.   - Negative Reinforcement: Removing an unpleasant outcome to increase behavior.   - Primary Reinforcers: Innately satisfying (e.g., food).   - Secondary Reinforcers: Learned reinforcers (e.g., money).   - Token Reinforcers: Exchangeable for other rewards.

• Punishment: Reduces behavior through negative consequences.

• Shaping: Gradually training a complex behavior through successive approximations.

• Reinforcement Schedules: Different patterns of delivering reinforcements influence learning:   - Continuous Schedule: Reinforcement provided for every response.   - Partial Schedules: Various approaches to reinforcing responses that create persistence in behavior.

Social Learning Theory

• Observational Learning: Learning by watching others.

• Modeling: The process of imitating others, demonstrated through studies like the Bobo doll experiment.

• Latent Learning: Knowledge that becomes apparent when a need arises.

• Cognitive Maps: Mental representations assisting in navigation.

• Insight Learning: Sudden realization of a problem's solution.

Social and Personality Psychology

Social Psychology

• Examines how we think, influence, and relate to others.

• Attributions: Explanation of behaviors.   - Dispositional Attribution: Assigning behavior to personal traits.   - Situational Attribution: Assigning to external factors.

• Fundamental Attribution Error: Emphasizing personality over context for others' behaviors.

• Self-Serving Bias: Attributing successes to personal strengths and failures to external factors.

• Social Comparisons: Evaluating oneself against others.   - Upward Comparison: Comparing to those perceived as better.   - Downward Comparison: Comparing to those perceived as worse.

• Explanatory Styles: Outlooks affecting perceptions of outcomes (optimistic vs. pessimistic).

• Locus of Control: The degree to which individuals perceive control over their lives (internal vs. external).

• Mere Exposure Effect: Familiarity increases liking for stimuli.

Attitudes

• Stereotypes: Generalized images of groups of people.

• Prejudice: Negative evaluation based on group affiliation without personal experience.

• Discrimination: Behavioral expression of prejudice.

• Ingroup Bias: Favoritism towards one’s own group.

• Ethnocentrism: Viewing one’s own group as superior.

• Illusory Correlation: Believing a relationship exists between variables when it does not.

• Cognitive Dissonance: When attitudes and actions conflict, creating discomfort leading to justification.

• Social Norms: Expectations influencing behaviors.

• Conformity vs. Obedience: Behavioral change due to group pressure vs. authority commands.

• Group Dynamics: How groups influence individual behaviors such as groupthink and social loafing.

• Altruism/Purposive Behavior: Motivations for prosocial behavior based on social norms.

Personality Psychology

Theories of Personality

Psychodynamic Perspective

• Emphasizes unconscious motivations and childhood experiences.   - Id: Basic desires.   - Superego: Morality, conscience.   - Ego: Reality-based mediator.

• Defense Mechanisms: Protecting the mind from anxiety and conflict (e.g., repression, denial).

Trait Perspective

• Traits: Consistent behaviors and tendencies.   - Big Five Model (OCEAN): Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism.

• Personality Inventories: Utilize factor analysis for measurement.

Humanistic Perspective

• Focuses on growing potential and personal growth.   - Self-Actualization: Fulfilling personal potential.   - Unconditional Positive Regard: Acceptance without conditions for individuals.

Social-Cognitive Perspective

• Cognitive processes and environmental interactions shape personality.   - Reciprocal Determinism: Interaction among behavior, cognition, and environment influences personality.   - Self-Efficacy: Belief in one's abilities enhances chances of success.

Motivation

Theories of Motivation

• Instinct Theory: Innate behavioral patterns activated by stimuli.

• Drive Reduction Theory: Physiological needs create drives to satisfy those needs.

• Approach-Avoidance Theory: Examines conflicts in decision-making.

• Self-Determination Theory: Distinguishes between intrinsic and extrinsic motivations.

• Incentive Theory: External rewards motivate behavior.

• Arousal Theory: People are motivated to seek optimum arousal levels, moderated by task difficulty.

Hunger Regulation

• Leptin: Signals satiety; prevents over-eating.

• Ghrelin: Triggers hunger sensation; increases with time since last meal.

Theories of Emotion

• Historical theories exam physiological and cognitive factors in emotion but do not extract universal principles or features.

• James-Lange Theory: Emotion is a result of physiological changes.

• Cannon-Bard Theory: Emotion and physiological responses occur independently.

• Schachter-Singer Two-Factor Theory: Cognitive interpretation and physiological arousal work together in emotional experience.

Biological Bases of Emotion

• Amygdala: Central to quick emotional responses.

• Cortex Influence: Higher cognitive processing often shapes emotions and responses to stimuli.

• Universal Emotions: Certain emotions are recognized universally across cultures, and display rules govern how emotions are expressed within cultures.

Mental and Physical Health Pillar

Health Psychology

• Health concerns and psychological well-being; connections to stress levels.

• Stress Types: Distress (negative) and Eustress (positive).

• General Adaptation Syndrome: Phases of stress response: Alarm, Resistance, and Exhaustion.

• Coping Strategies:   - Problem-Focused Coping: Directly addressing the problem.   - Emotion-Focused Coping: Managing emotions associated with stress.

Positive Psychology

• Studies factors leading to resilience, well-being, and positive emotions.

• Gratitude: Enhancing well-being through thankfulness practices.

Explaining/ Classifying Disorders

Explanatory Models

• Biopsychosocial Model: Integrates biological, psychological, and social factors.

• Diathesis-Stress Model: Highlights the interaction of predisposition with stressful triggers.

Diagnosing Abnormal Behavior

• DSM: Diagnostic and Statistical Manual of Mental Disorders, used for classification and diagnosis.   - Abnormal Behavior Defining Features:     - Dysfunction     - Distress     - Deviance from social norms.

Major Disorders

1. Neurodevelopmental Disorders:   - ADHD: Inattention/hyperactivity from genetic or biological causes.   - Autism Spectrum Disorder: Communication and behavior challenges.

2. Feeding/Eating Disorders: Anorexia and Bulimia.

3. Mood Disorders: Depression, Bipolar disorder (major depressive and manic/hypomanic episodes).

4. Schizophrenia: Positive (e.g., hallucinations) and negative symptoms (e.g., flat affect); genetic and dopamine dysregulation implicated.

5. Anxiety Disorders: Phobias, panic disorder, and generalized anxiety disorder.

6. Dissociative Disorders: Dissociative amnesia and identity disorder stemming from trauma.

7. Obsessive-Compulsive Disorders: Obsessions and compulsions leading to distress.

8. Personality Disorders: Grouped by patterns of behavior; includes paranoid, antisocial, borderline, avoidant, and obsessive-compulsive disorders.

Treatment of Disorders

Ethical Considerations

• APA Standards: Nonmaleficence, integrity, and respect for individuals’ rights.

• Deinstitutionalization: Reducing hospitalizations through better medication management.

Treatment Modalities

1. Psychodynamic Approach: Techniques focusing on uncovering the unconscious via free association and dream interpretation.

2. Biological Approach: Medications and interventions targeting neurotransmitter imbalances, including:    - Psychoactive medications (e.g., SSRIs, anti-psychotics).    - ECT (Electroconvulsive Therapy) for severe depression.    - Psychosurgery for severe cases (historically much more common).

3. Humanistic Approach: Client-centered therapy focusing on self-awareness and growth.

4. Cognitive Perspective: Cognitive restructuring tackling maladaptive thoughts.

5. Behavioral Perspective: Applies learning theories to correct behavior through techniques like systematic desensitization and operant conditioning.

6. Combined Approaches: Cognitive Behavioral Therapy integrating cognitive and behavioral strategies, including dialectical behavior therapy for intense emotional management.