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151 Cards in this Set

  • Front
  • Back
When Ali first had corrective braces put on his teeth, the pressure and tension were very uncomfortable. Now however, he barely notices his braces. Why?
The pressure is constant, his sensory receptors have adapted
What is necessary for sound?
A medium such as air, fluctuations in the pressure of a medium, and vibrations of an object.
Ashanti cannot hear. All of the structures in her hearing system work, except for those that transduce the sound waves. Ashanti's _______ do not work; therefore, she has _______ deafness.
Hair cells; nerve
Hair cells are the transduction mechanisms for hearing
Place theory proposes a _________ code for sensing pitch; the frequency-matching theory proposes a __________ code.
Spatial; temporal
Contra-lateral representation in sensation means that?
the cortex builds sensory representations of the opposite side of the world.
What structures are necessary for the transduction of light energy?
photoreceptors, rods and cones, and photopigments
Transduction is the conversion of stimulus energy into neural energy
A villain is trying to obliterate the visual system of his arch nemesis. If he destroys the _________, then his nemesis will be unable to see color.
iodospin (it initiates the transduction process)
which of the following would cause the least amount of lateral inhibition to occur?

A) Looking at a spiderweb covered with dew in the morning sun
B) Looking at a zebra's black and white stripes
C) Looking at a green refrigerator's surface
C
While Becky watched a basket ball game on TV, Cindy asked her, 'Is this OK for dinner?" Based on Becky's peripheral vision she said okay only to find that she was given Brussels sprouts. Becky realized that her visual acuity was not very good because she was relying primarily on _________?
rods
Women are more likely than men to have four distinct photo-pigments, which means that women?
will have a richer experience of color than people who do not
A projection-screen TV has a separate box that aims green, red, and blue lights at the screen, by combining the different lights in differing amounts, it fits best with the __________ theory of color vision
trichromatic
When Julia says that the color red tastes tart and the color pink tastes sweet to her, she is describing her sense of?
synesthesia
Which sense does not send info through the thalamus on its way to the cortex?

A) Hearing
B) Vision
C) Olfaction
D) Somatosensory
C
axons leaving the olfactory bulb travel to many parts of the brain, especially the amygdala
the taste sensation that enhances other senses is known as?
umami
For the auditory sense, the physical dimension of wave amplitude corresponds to the psychological experience of _________; the physical dimension of wave frequency corresponds to the psychological experience of __________.
loudness; pitch
Which theory suggests that pitch is determined by the location of movement along the basilar membrane?
Place theory
The process of lateral inhibition allows the brain to see
more distinct contrasts in stimuli
Evelyn put on sunglasses that had a red tint. After wearing them for a few minutes she took them off and everything she saw now had a green tint. The cells directly responsible for this after-image were Evelyn's ________ ________. The theory that best explains the after-image is the __________ theory.
ganglion cells; opponent-process
The brain structure through which each eye's optic nerve crosses over to the opposite side of the brain is the
optic chasm
What are accessory structures?
structure that first comes into contact with stimulation from the environment and collects this information
What are sensory receptors?
specialized cells within each accessory structure which respond stimulation by generating a neural signal
Temporal Code
Attributes of a stimulus are
coded using changes in the
timing of neural firing
Spatial Code
Attributes of a stimulus is
coded in terms of the location
of firing neurons relative to
their neighbors
conduction deafness
– The three tiny bones of the middle ear are fused together, which prevents accurate reproduction of vibrations.
– Surgery can break bones apart or replace them with plastic ones. Hearing aids can also help.
Nerve deafness
– Results when the auditory nerve or the hair cells are damaged—this can happen with extended exposure to loud noise
Place Theory (spatial code)
- hair cells at a particular place on the basilar membrane respond most to a particular frequency of sound
- but doesn’t work for low frequencies because there are no auditory nerve fibers that have very low preferred frequencies
Frequency Matching Theory (temporal code)
- firing rate of an auditory nerve matches a sound wave’s frequency
- we can only code like this up to 1,000 Hz (1,000 peaks /s) because neurons cannot fire more than 1,000 action potentials per second
Light: intensity
how much energy light has
determines brightness
Wavelengths
distance between peaks
determines color
Lateral inhibition
photoreceptors inhibit nearby cells, enhance contrast
Opponent-process theory
Explains afterimages
• Visual elements sensitive to color are grouped into 3 pairs, where each pair member inhibits the other.
• Red - green
• Blue - yellow
• Black - white
Perception: Computational
bottom-up processing: start with details about something then arrive at a conclusion
Perception: Contructivist
top-down processing: expectations, experience-dependent, and filling the missing thing in
Perception: Ecological
automatic processing
cares about the function of the world around us
overt attention
move your eyes
covert attention
shift attention
Absolute Threshold
how much energy is needed to trigger a conscious experience
Signal Detection Theory
intensity of the signal
capacity of sensory system
amount of background "noise"
Just-Noticeable-Difference: Weber's Law
the smallest detectable difference in energy is a constant fraction of stimulus intensity.
Smaller K: a sense is more
sensitive to differences
Larger K: a sense is less sensitive to differences
Fechner’s Law
- a low-intensity stimulus needs small energy change to seem twice as great
- a high-intensity stimulus needs large energy change to seem twice as great
Perceptual Organization
-Simplicity: Organize elements to provide simplest perception
-Likelihood: Organize elements based on most likely arrangement
Dualism
The mind and body are separate.
The soul interacts with the brain
through the pineal gland.
Materialism
The mind is the result of interactions of neurons in the brain. Mind = brain.
Conscious
Mental activity that you are aware of.
Ex) Thoughts
Nonconscious
mental activity you are not aware of.
Ex) regulating blood pressure
Preconscious
mental activity you are not aware of but can become aware of.
Ex) recalling what you ate for dinner the night before
Unconscious
mental activity that influences consciousness, but is not conscious
Priming
• People respond faster and more accurately to stimuli they have seen previously, even if they cannot recall seeing the stimuli
• Behavior can be influenced by previous experiences without our awareness
Sleep
consciousness ranges from alert (waking state) to passive (deep sleep), when most external stimuli are blocked from senses
Altered states of consciousness
changes in mental processing cause differences in perception/behavior
– psychoactive drugs
– hypnosis
Insomnia
Fatigue resulting from little sleep or difficulty falling asleep
• Sleep difficulty must last longer than one month to count as insomnia
Narcolepsy
an abrupt switch from active waking state to REM sleep
• since muscle tone is lost in REM sleep, narcoleptics collapse when switch occurs
Sleep apnea
Breathing stops briefly during sleep
• Awaken just long enough to resume breathing
• Don’t feel rested
Hypnosis: state theory
altered state of consciousness
Hypnosis: role theory
subjects under hypnosis act in accordance with hypnotized role (they simply comply)
Hypnosis: dissociative theory
subjects split various aspects of their behavior and perceptions from the ‘self’ and share some control with the hypnotist
Antagonist
prevent neurotransmitters from binding with receptors
Agonist
mimic effects of neurotransmitters
Effects of caffeine
Increases behavioral and mental
activity
Effects of opiates
(opium, morphine, heroin, codeine)
Induce sleep and relieve pain…
but highly addictive!
Effects of hallucinogens
(LSD, ketamine, marijuana)
Create a loss of contact with reality; alter aspects of emotion, perception, thought.
Reliability of a test:
Test-retest
Alternate form
Split-half
 Test-retest: Compare same test twice
◦ e.g., Take WAIS in 2005 and 2007
 Alternate form: Compare 2 forms of test
◦ e.g., Take WAIS and then Stanford-Binet 5
 Split-half: Compare 2 comparable halves of the test
◦ e.g., Compare WAIS 1/2 verbal to 2/2 verbal
Validity of a test
Content
Construct
Criterion
Predictive
Content: provide a measure of the entire domain
◦ e.g., does it actually measure all “types” of intelligence?
 Construct: actually measure the theoretical construct
◦ e.g., does it measure intelligence at all?
 Criterion: correlate with another criterion
◦ e.g., IQ score correlate with independent measure?
 Predictive: predict future performance
◦ One type of criterion validity
◦ e.g., can IQ predict success at school, work?
Binet-Simon intelligence scale
Mental age
 A child's level of mental development relative to others
 If MA (mental age) = CA (chronological age), then “regular” intelligence
Instinct theory
-Human behavior is explained by automatic, unlearned responses to particular stimuli (instincts)
-Consistent with the evolutionary approach
-Behaviors are present because they were adaptive (they promoted individual survival and reproduction in our ancestors’ environment)
Drive reduction theory
-Much motivation arises from constant imbalances in homeostasis
-Homeostasis is the tendency for organisms to keep their physiological systems at a stable, steady level by constantly adjusting themselves in response to change
-Need (Imbalance)  Drive (prompt to action)
-Primary drives: arise from basic biological needs
-Secondary drives: are learned
Optimal Arousal theory
-Arousal is a general level of activation that is reflected in several physiological systems, such as brain activity, heart rate, muscle tension
-Arousal Theory: People are motivated to behave in ways that maintain an optimal level of arousal for them individually
Incentive theory
-Behavior is directed toward attaining desirable stimuli and avoiding unwanted stimuli
---Why are there differences between people then?
-Different values placed on incentives (cognitive,
cultural, social influences)
-Different physiological states
Approach-approach
Avoidance-avoidance
Approach-avoidance
Mutiple approach-avoidance
Approach-Approach: two options, both desirable
--party 1 vs. party 2
Avoidance-Avoidance: two options, both undesirable
--pay a fine vs. go to jail
Approach-Avoidance: one option, desirable & undesirable qualities
--date at a nice restaurant: elegant but $$$$
Multiple Approach-Avoidance: more than one option, desirable & undesirable qualities
--college 1 vs. college 2
James Peripheral theory
-Certain emotional states are associated with different patterns of anatomic changes
-Lie detector tests based on this theory
-Making a certain face seems to create matching anatomic reaction and emotional sensation
-What about people who can’t feel peripheral
responses?
Cannon's Central theory
We experience emotions right away
Cognitive Theories
Autonomic nervous system
• Cold and clammy hands
• Increased perspiration
• Dilated pupils
• Increased heartbeat
• Knots in your stomach
Personality: Psychodynamic approach
--Based on case studies
--Little empirical evidence
Basic tenets:
--Constant internal mental
struggle (psycho – mind,
dynamic – movement)
--Unconscious processes
influence behavior
Psychodynamic: Freud's Id, ego, and superego
--Id: “Pleasure principle”
--Superego: Morals
--Ego: Resolves the conflict (“reality principle”)
Psychosexual stages
1) Oral
Pleasure center Mouth
Fixation
Focused on oral
stimulation
Dependency
2) Anal
Pleasure center anus
Fixation
Anal retentive
Anal expulsive
3) Phallic (4-6 yrs)
Pleasure center genitals
Oedipal/Electra complex
Parental Identification
4) Latency (7-11 yrs)
Pleasure center: none
Sublimation of sexual and
aggressive urges
5) Genital (12+ yrs)
Mature sexual
relationships
8 defense mechanisms
• Repression: Make it unconscious
• Denial: Claim it doesn’t exist
• Rationalization: Make it sound reasonable
• Displacement: Direct it towards someone
else
• Reaction Formation: Do the exact opposite
• Projection: Attribute it to someone else
• Compensation: Make up for it some other way
• Sublimation: Channel it into something productive
Type theories
--Type – a qualitatively defined category.
--You belong in one group or another.
Examples:
Freud: orally fixated, anally fixated
Caspi: well-adjusted, maladjusted over-controlling, maladjusted undercontrolling
Trait theories
--Trait – a characteristic attribute intrinsic to the person, stable across time and situations
--Often thought of as dimensions, with variability from low to high
Examples:
Relaxed------Tense
Optimistic-----Negative
Neat-----------Sloppy
Gray's approach inhibition theory
--Behavior Approach System (BAS)
--Behavioral Inhibition System (BIS)
--Behavior Approach System (BAS)
• Affects sensitivity to rewards
• High on this – seek rewards!
--Behavioral Inhibition System (BIS)
• Affects sensitivity to punishments
• High on this – avoid punishments!
Social-Cognitive approach
--Characteristics of individuals are acquired through learning
--also emphasizes the influence of social situations on personality, cognitive factors such as expectations, and personal dispositions
Rotter's Expectancy theory
--Internal control – expect events to be controlled by their own efforts
--External control – expect events to be controlled by forces over which they have no control
Humanistic approach
--Everyone has a unique world view
--Innate motivation for growth
Roger's Self theory
Personality is shaped by both our actualization
tendency and by others’ evaluations of us
--Self-concept: the way one think of oneself
--Congruence
--Condition of worth: feeling experienced when a person, not their behavior, is evaluated
Personality Disorder: Odd-ecentric cluster
Paranoid, schizoid, and schizotypal
Personality Disorder: Anxious-fearful cluster
Dependent, obsessive-compulsive, and avoidant
Personality Disorder: Dramatic-erratic
Histrionic, narcissistic, borderline, and antisocial
Anxiety Disorders
Characterized by distressing, persistent, or disruptive anxiety, or maladaptive behaviors that reduce anxiety
Generalized Anxiety Disorder
Excessive, lasting anxiety, not on one object or situation
►Free-floating anxiety for > 6 mos
►Worry, irritable, tired, can’t concentrate
Panic Disorder
--Recurrent, uncued panic attacks
--Followed by worry about having more
--Panic attack = period of intense anxiety with abrupt onset
--physiological symptoms: e.g. sweating, heart pounding
--psychological symptoms: e.g. fear of dying or going crazy
Diathesis; Stress
Diathesis:
--inherited biological characteristics
-- parental modeling of anxious behavior
--lack of perceived control
► Stress:
 exposure to traumatic event ongoing stressors
► Combine to produce anxiety disorders
Schizophrenia
Symptoms
A severe and disabling pattern of disturbed thinking, emotion, perception, and behavior
Symptoms:
►Disorganized thought and language
-Neologisms
-loose associations, clang associations
-Word salad (“Colorless green ideas sleep furiously”)
►Content of thought is disturbed
-Ideas of reference
-Delusions of grandeur
-Thought broadcasting
-Thought withdrawal
-Thought insertion
Types of Schizophrenia
Paranoid
– delusions of grandeur or persecution
Disorganized
– delusions, hallucinations, incoherent speech, neglected
personal hygiene
Catatonic
– Disordered movement, immobility to wild excitement
Undifferentiated
– Don’t fit easily into other subtype
Residual
– not currently displaying symptoms
Dissociative Disorders
Sudden, usually temporary
disruption in person’s memory,
consciousness or identity.
Types of Dissociative Disorders
►Dissociative Amnesia
Sudden loss of memory
►Dissociative Fugue
Sudden loss of memory AND the assumption of a new identity in a new locale
►Dissociative Identity Disorder (i.e. multiple personality disorder) A person reports having more than one identity
--Most DID patients suffered severe abuse in childhood
--Rare, but on the rise
Somatoform Disorders
Psychological problems that take on a physical form, but have no physical cause
Somatoform Disorder: Conversion Disorder
►Loss of some physical ability w/o physical cause (blindness, deafness, paralysis, numbness, fainting..)
-->Lack of concern
-->Not malingering
Hypochondriasis
Strong, unjustified conviction that one has a serious disease
-->Seeks treatment
-->Becomes expert
Causes of Somatoform Disorders
• Childhood experiences (learning?)
• Severe stressors
• Bio/psychological traits (self-consciousness, sensitivity)
• Sociocultural factor
Major Depressive Disorder
►Sad, hopeless for 2 weeks or more
►Anhedonia – loss of pleasure
Dysthymia
►Similar to major depression, but symptoms less severe and longer lasting
-->Duration at least 2 years
Bipolar 1
►Alternates between deep depression and mania
--Mania – active, elated emotional state
►Symptoms:
--Inflated self-esteem
--Decreased need for sleep
--More talkative than usual
--Flights of ideas or racing thoughts
--Extreme distractibility
--Increase in goal-directed activity
--Excessive involvement in high risk, pleasurable activity
Bipolar 2
►Alternates between deep depression and hypomania
--Hypomania – less extreme mania
Cyclothymic Disorder
►Alternates between depression and hypomania, but less severe
Causes of mood disorders
--Biological
--Psychological
►Biological
-->genetic influence
-->malfunctioning mood centers of the brain
-->neurotransmitters: norepinephrine, serotonin, dopamine
►Psychological
-->learned helplessness
-->attribution style
-->what do you do when you start to feel depresses
Types of therapists:
Psychiatrist
Psychologist
Master's Degree Level
Paraprofessionals
"Quacks"
• Psychiatrist
– M.D., specialized in the treatment of mental disorders
• Psychologist
– Doctoral degree in clinical or counseling psychology
• Master’s Degree level professionals
– Clinical social workers, marriage and family therapists,
licensed professional counselors
• Paraprofessionals
– Psychiatric nurses, substance abuse counselors
• “Quacks”
– Talk show hosts, your friend the psych major
Psychodynamic Approach
Theory
Goal of therapy
Therapist's Role
Duration
• Theory of Disorder
– Unconscious conflict (id, ego, superego)
• Goal of therapy
– Bring the conflict to light
• Therapist’s role
– Neutral expert
– Exploring the meaning of the past
• Duration
– 3-5 times a week for years
Psychodynamic approach
Theory (detailed)
Goal (detailed)
• Theory of Disorder
– most of the problems stem from clients’ relationships
with others (e.g. mothers or other early caregiver)
– and how those problems continue in interactions with
new people
• Goal
– direct client’s attention to evidence of certain conflicts
– develop a nurturing relationships with the clients
Humanistic Approach
Theory
Goal of therapy
Therapist's Role
Duration
• Theory of disorder
– Clients have been prevented from self-actualization
(e.g. distorted perceptions or lack of awareness of feelings)
• Goals of therapy
– self-acceptance
– remove distorted perceptions blocking self-awareness and
actualization
• Therapist’s role: an equal and a confidant
Humanistic Principles
--People have free will and choice over how they think, feel, and behave, as well as the capacity for self-actualization
-->Assumptions of Humanistic psychotherapy
1. Treatment is an encounter between equals
2. Clients will improve on their own, given the right conditions
3. Ideal conditions: client feels fully accepted and supported
4. Clients must remain responsible for choosing how they will think and behave
Humanistic: Client-centered therapy
• Methods
– Unconditional positive regard
– Empathy
• Active listening
• Reflection
• Congruence (genuineness)
Humanistic: Gestalt Therapy
• Goal of therapy
– Unify the self
• Methods
– Focus on the present
– Help patients become aware of their feelings
– Directly point out inconsistencies
– Analysis of body language
– imaginary “conversations” with others or themselves
Cognitive-Behavioral therapy
Theory
Goal of therapy
Therapist's Role
Duration
• Theory of disorder
– Disorders come from errors in thinking (illogical or irrational beliefs)
• Goal of therapy
– Correct the beliefs
• Therapist’s role
– Teacher, logician
Behavioral therapies
Theory
Goal of therapy
Therapist's Role
Duration
• Theory of disorder
– people’s actions are based on learning, conditioning, and
past experiences
• Goal of treatment
– use classical/operant conditioning principles to change
behavior
• Therapist’s role
• teacher/trainer
• Focus on here and now, and the current problematic behaviors
Behavioral therapy methods
• Systematic desensitization: ------Teach relaxation technique and cognitive strategies
--Develop a fear hierarchy
--Gradual exposure to the feared object
• Modeling
• Flooding
• Positive reinforcement:The desired behavior is followed by pleasant stimulus
• Extinction:Remove the reinforcer that normally follows the behavior
• Punishment:The unwanted behavior is followed by an unpleasant stimulus
• Aversive conditioning:Associate the unwanted behavior (simultaneously) with
nausea, painful electrical shock, or other unpleasant stimulus
Biological treatments: Psychoactive drugs
--Psychoactive Drugs
◦ Neuroleptics or antipsychotics (schizophrenia)
◦ Antidepressants (depression)
◦ Lithium and anticonvulsants (bipolar)
◦ Anxiolytics (anxiety disorder)
Social Comparison: Downward comparison
--compare ourselves to people we think are worse than ourselves
--protects or enhances self-esteem
Social Comparison: Upward comparison
--comparing ourselves to people we think are better than
ourselves.
--maintain self-esteem (your opponent is too good)
--or lead to relative deprivation (Hey, why is he getting more than I do? That’s not fair!)
Forming Impressions
--We tend to assume others hold similar attitudes and values to ourselves
--So, we are inclined to like other people
--But negative information attracts more attention
and is given more weight than positive information in the shaping of first impressions
Lasting Impressions: Self-fulfilling prophecy
--We tend to be overconfident with our judgments
--We tend to act in ways that elicit behavior consistent with our impression
◦ Self-fulfilling prophecy
Internal Attribution
the behavior is due to characteristics of the person
External Attribution
the behavior is due to aspects of the situation
High Consensus
Low Consensus
High Consensus: Mike wants to ask Jessica out on a date. Other guys have asked Jessica out on a date too.
Low Consensus: Others have not asked Jessica out on a date.
Do other people behave in the same way as Mike?
High consistency
Low consistency
Does Mike behave like this repeatedly?
High Consistency: when he does behave like that repeatedly
Low Consistency: he does not behave like that repeatedly
High Distinctiveness
Low Distinctiveness
High: when he only asks Jessica out on a date
Low: when he asks others out on a date as well
Fundamental Attribution Error
Attribute others’ behaviors to internal factors
-->You see a girl talking on the phone while driving
-->She’s reckless
Actor-observer bias
Attribute our own behavior to external factors, others’
behavior to internal factors
You talk on the phone while driving
-->It’s an emergency!”
Another girl does it
-->She’s reckless!”
Self-serving Bias
--Attribute our own success to internal factors, our own failures
to external factors
--When you DO talk on the phone as you drive
“It’s an emergency!”
--When you DON’T talk on the phone as you drive
"I’m a conscientious and careful driver!”
Ultimate Attribution Error
--Attribute negative behavior of ingroup and positive behavior of outgroup to external factors
--It’s a girl in your sorority on the phone
“It’s an emergency!”
--A girl from another sorority NEVER talks on the phone while driving
“No one likes her anyway!”
Elaboration Likelihood Model
--Central route to attitude change:
◦ Message is important
--Peripheral route to attitude change:
◦ Person giving the message is important
Cognitive Dissonance Theory
--People want their thoughts, beliefs, and attitudes to be
consistent with their behaviors
• When behavior-attitude inconsistency causes discomfort
-- People change their attitude to reduce discomfort
• Attitude changes mostly occur when people publicly engage in behaviors that are inconsistent with their privately held attitudes
Intimate Relationship and Love
•Passion=strong & intense
feelings, longing to be with,
infatuation, physiological arousal
•Intimacy = emotional closeness, bonding, sharing
•Commitment = decision to love & maintain a long term relationship with someone
Motivational Theory
- Prejudice may be the result when people’s motivation to enhance their own self-esteem causes them to disrespect others
Cognitive Theory (ch. 18)
People use schemas and other cognitive shortcuts to organize and make sense of their social world
Learning Theory (ch. 18)
Like attitude, prejudic can be the results of observational learning
Descriptive Norms
– indicate how most other people actually behave in a given situation
– give permission to act in the same way
Injunctive Norms
give more specific, explicit information about the actions that others find acceptable and unacceptable
Social Facilitation
Social Impairment
•Social Facilitation
--The presence of other people can enhance performance
• Social Impairment
--The presence of other people can impair performance
Social Loafing
• The presence of other people may make you exert less effort than when you are performing alone
Deindividuation
• a person becomes “submerged in the group,” and loses the sense of individuality
Change behavior:
-Conformity
-Compliance
-Obedience
• Conformity
– Adjust behavior or beliefs because of real or imagined group pressure
• Compliance
– Adjust behavior because of an request
• Obedience
– Adjust behavior in response to a demand from an authority figure
-Private Acceptance
-Public Conformity
• Private acceptance:
–One conforms because one believes the group is right
• Public conformity:
–One conforms because it is socially desirable, but beliefs and attitudes do not change
Foot-in-the-door
A person initially agrees to a small request and then is presented with gradually larger requests (different request)
Door-in-the-face
An initial request is made that is likely to be denied, then the real request is made
Low ball approach
After a person agrees to a request, the cost of fulfilling the (same) request is increased
Obedience
Obedience: changing behavior in response to a demand from an authority figure
Frustration-aggression hypothesis
– Aggression is always due to frustration
–Or stress
Generalized Arousal
–When a person carries over an arousing experience from one situation to another
– Transferred excitation
Arousal: Cost-reward theory
Arousal: cost-reward theory – people find sight/thought of victim distressing, and are motivated to act to reduce unpleasant arousal.
Evolutionary Theory
--people act to to increase their
inclusive fitness (i.e. the survival of their genes in future generations)
--Kin selection: helping an individual who shares your genes
Empathy-altruism theory
people more likely to engage in altruism if they feel empathy for the victim
Why are people aggressive?
• Instinct theories
– Thanatos (Freud)
• Evolutionary theories
– Promotes survival of aggressor’s genes
• Learning and culture
– More common in individualistic
cultures
– Male culture of honor
• Genetics and biological mechanisms
– Genetic component to aggression
– Damage to amygdala and
hypothalamus leads to aggressive responses to neutral stimuli
– Cerebral cortex metabolizes
glucose slower in murderers
– Violent criminals have higher
levels of testosterone