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rhodopsin (rods)
Functions better in dim light
poor detail vision
does not distinguish color
located mostly in the periphery of retina
receptive field is large
Contributes to light sensitivity
Cones
function best in bright light
poorly or not at all in dim light
Good detail vision
distinguishes among colors
located mostly in the fovea and surrounding area
receptive field is small and contributes to detail vision
accommodation
the process by which the eye's lens changes shape to focus near or far objects on the retina
cochlea
a coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses
Three parts of the ear
outer ear, middle ear, inner ear
basiliar membrane
a structure in the inner ear that undulates when vibrations from the ossicles reach the cochlear fluid
3 bones of ossicles
malleus (hammer), incus (anvil), stapes (stirrup). The smallest bones in the entire body!
sound localization cues
Interaural time difference; Interaural level difference; Doppler effect
Thermoreceptors
nerve fibers that sense cold and warmth
Principles of neural representation
Left half of the body is represented by the right half of the brain and vice versa
More of the visual brain is devoted to the fovea where visual acuty is the greatest
"What" and "Where" pathways
The Dorsal "where/how" Stream: Motion recognition, where something is in relation to yourself
The Ventral "what" Stream: Object recognition, facial recognition
Electroencephalogram (EEG)
An amplified recording of the waves of electrical activity that sweep across the brain's surface. These waves are measured by electrodes placed on the scalp. An electronic amplifier detects the combined electrical activity of all the neurons between two neurons
Types of brain waves
alpha waves
beta waves
theta waves
delta waves
Amygdala
A limbic system structure located near the lateral ventricle in each temporal lobe that is involved with primarily negative emotions and with sexual behavior, aggression, and learning, especially in emotional situations
Stages of sleep
Drowsy: alpha waves
Stage 1: Theta Waves
Stage 2: Sleep Spindles; k complexes-large sharp waves
Stage 3 and 4: slow-wave sleep(characterized by large, slow delta waves at frequency 1 to 3hz)
Rem sleep: fast and random, highly active amygdala, motor cortex is activated but spinal neurons are inhibited
Sleep deprivation can lead to memory problems , excessive aggression, slow wave deprivation causes more physical effects such as fatigue and hypersensitive bone and muscle pain
5 major characteristics of dream consciousness
Intense Emotion
Dream thought is illogical
Sensation is fully formed and meaningful
Uncritical acceptance
We have difficulty remembering the dream when its over
Galvanic skin response (GSR)
an increase in the electrical conductivity of the skin that occurs when sweat glands increase their activity
James-Lange Theory
the theory that our experience of emotion is our awareness of our physiological responses to emotion-arousing stimuli
Cannon-Bard Theory
the theory that an emotion-arousing stimulus simultaneously triggers (1) physiological responses and (2) the subjective experience of emotion
two-factor theory
Schachter and Singer's theory that emotion is determined by two factors: physiological arousal and cognitive labeling
occipital lobe
A region of the cerebral cortex that processes visual information
parietal lobe
A region of the cerebral cortex whose functions include processing information about touch.
temporal lobe
A region of the cerebral cortex responsible for hearing and language.
frontal lobe
A region of the cerebral cortex that has specialized areas for movement, abstract thinking, planning, memory, and judgement
Psychology Professions
Counseling Psychologist
Social Psychologist
Clinical Psychologist
Guidance Counselors
Social Workers
Clinical Mental Health Workers
Psychology
the scientific study of behavior and mental processes
psychodynamic approach
an approach that regards personality as formed by needs, strivings, and desires largely operating outside of awareness-motives that can also produce emotional disorders
Behavioral Perspective
effects of environment on the overt behavior of humans and animals; only observable events (stimulus-response relations) can be studied scientifically.
cognitive perspective
A psychological approach that emphasizes mental processes in perception, memory, language, problem solving, and other areas of behavior
Humanistic Perspective
the "third force" in psychology that focuses on those aspects of personality that make people uniquely human, such as subjective feelings and freedom of choice
Greek Philosophers
Socrates, Plato, Aristotle
Functions of the Unconcious
William James, Sigmund Freud
Followers of Freud
Carl Jung
Karen Horney
Alfred Adler
Erik Erikson
... were followers of Freud who developed their own versions of psychoanalytic theory. Compared with Freud, they all had more optimistic views of humanity and saw personality as being more changeable throughout the lifespan. Also saw people as motivated and influenced by a growth instinct, by a striving for superiority, or by social factors, rather than primarily sensual urges.
Correlation
A measure of the extent to which two factors vary together, and thus of how well either factor predicts the other.
double-blind study
An experimental procedure in which both researchers and participants are uninformed about the nature of the independent variable being administered.
control group
In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment.
independent variable
The experimental factor that is manipulated; the variable whose effect is being studied.
dependent variable
The measurable effect, outcome, or response in which the research is interested.
Placebo
an inert substance that participants believe is a treatment
placebo group
A control group of participants who believe they are receiving treatment, but who are only receiving a placebo.
experimental design
A design in which researchers manipulate an independent variable and measure a dependent variable to determine a cause-and-effect relationship
Social Schemas
a general knowledge structure, stored in long-term memory, that relates to social experiences or people
Social Attribution (causal attribution)
linking an event to a cause, such as inferring that a personality trait is responsible for a behavior
atttribution theory
an umbrella term used to describe the set of theoretical accounts of how people assign causes to events around them and the effects that people's causal assessments have
Solomon Asch
1951 line experiment involving lying confederates and a subject who 35 % of the time conformed to the group even though they knew it was the wrong answer
Milgram Study
experimenter told teacher to ask learner a question, if wrong electrical charge was administered; many teachers conformed to authority of experimenter
obedience studies
Participants in these studies are caught in a conflict between normative social influence and moral imperatives.
cognitive dissonance theory
maintains that inconsistencies among a person's thoughts, sentiments and actions create an aversive emotional state(dissonance) that leads to efforts to restore consistency
Yale Attitude Change Approach
The study of the conditions under which people are most likely to change their attitudes in response to persuasive messages, focusing on the source of the communication, the nature of the communication, and the nature of the audience
bystander effect
the tendency for any given bystander to be less likely to give aid if other bystanders are present
Group
a collection of any number of people 'as few as two' who have some form a relations to each other that have made them interdependent in some way
social facilitation
improved performance on simple or well-learned tasks in the presence of others
social loafing
the tendency for people in a group to exert less effort when pooling their efforts toward attaining a common goal than when individually accountable
Groupthink
the mode of thinking that occurs when the desire for harmony in a decision-making group overrides a realistic appraisal of alternatives
social cognition
how people think about themselves and the social world; more specifically, how people select, interpret, remember, and use social information to make judgments and decisions
classical conditioning
a learning process that occurs when two stimuli are repeatedly paired; a response that is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.(Pavlov)
operant conditioning
a type of learning in which behavior is strengthened if followed by a reinforcer or diminished if followed by a punisher
Bandura's Social Learning Theory
Emphasizing learning through observation, vicarious learning and modeling
Bandura's Bobo Doll Experiment
In this experiment children watched a model attack a doll and then the children were put in a room with toys including the same doll and children it was found that the kids who watched the model were much more likely to imitate the actions.
self-efficacy
An individual's belief that he or she is capable of performing a task.
semantic encoding
the process of relating new information in a meaningful way to knowledge that is already stored in memory
visual imagery encoding
the process of storing new information by converting it into mental pictures
Organizational Encoding
the process of categorizing information according to the relationships among a series of items
Retention of information improves when
the person repeats and manipulates it
transience
forgetting what occurs with the passage of time
absentmindedness
a lapse in attention that results in memory failure
Blocking
a failure to retrieve information that is available in memory even though you are trying to produce it
memory misattribution
assigning a recollection or an idea to the wrong source
suggestibility
the tendency to incorporate misleading information from external sources into personal recollections
Bias
prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
persistence
the intrusive recollection of events that we wish we could forget
Freud's structure of personality
id, ego, superego
Id
contains a reservoir of unconscious psychic energy that, according to Freud, strives to satisfy basic sexual and aggressive drives. The id operates on the pleasure principle, demanding immediate gratification
ego
the largely conscious, "executive" part of personality that, according to Freud, mediates among the demands of the id, superego, and reality. The ego operates on the reality principle, satisfying the id's desires in ways that will realistically bring pleasure rather than pain.
super ego
Freud; "moral watchdog"; governs behavior by reality and morality, often taught by parents, church and/or community; standards develop through interaction; conscience; ego ideal
Big Five Personality Traits
neuroticism
extroversion
openness to experience
agreeableness
conscientiousness
Social Needs (Maslow)
The needs for love, companionship, and friendship-the desire for acceptance by others
Ericsons stages of develpment are classified as:
Psychosocial Development in 8 separate stages.in which a crisis or task must be addressed.
Erickson's stages
trust vs mistrust
autonomy vs shame and doubt
initiative vs guilt
industry vs inferiority
identity vs role confusion
intimacy vs isolation
generativity vs stagnation
integrity vs despair
Stages of prenatal development in order
Germinal
embryo
fetus
Zygote
the fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo
germinal stage
the 2-week period of prenatal development that begins at conception
embryonic stage
The second stage of prenatal development, lasting from two weeks until the end of the second month.
fetal stage
The third stage of prenatal development, lasting from two months through birth.
Piaget's stages of cognitive development
sensorimotor, preoperational, concrete operational, formal operational
sensorimotor stage
in Piaget's theory, the stage (from birth to about 2 years of age) during which infants know the world mostly in terms of their sensory impressions and motor activities
preoperational stage
in Piaget's theory, the stage (from about 2 to 6 or 7 years of age) during which a child learns to use language but does not yet comprehend the mental operations of concrete logic
concrete operational stage
in Piaget's theory, the stage of cognitive development (from about 6 or 7 to 11 years of age) during which children gain the mental operations that enable them to think logically about concrete events
formal operational stage
in Piaget's theory, the stage of cognitive development (normally beginning about age 12) during which people begin to think logically about abstract concepts
attachment styles
secure, avoidant, anxious/ambivalent
anxious attachment
attachments marked by anxiety or ambivalence. an insecure attachment style
secure attachment
attachments rooted in trust and marked by intimacy
avoidant attachment
characterized by child's unresponsiveness to parent, does not use the parent as a secure base, and does not care if parent leaves
Piaget theory of moral development
*Piaget believed children's moral judgments develop in two overlapping stages
*Moral realism and Autonomous morality
heteronomous morality (Piaget)
The first stage of moral development in Piaget's theory, occurring at 4 to 7 years of age. Justice and rules are conceived of as unchangeable properties of the world, removed from the control of people.
autonomous morality
In Piaget's theory of moral development, the stage at which a person understands that people make rules and that punishments are not automatic.
Kohlberg's Theory of Moral Development
Developing children progress through a predictable sequence of stages of moral reasoning (preconventional, conventional, postconventional).
preconventional morality
first level of Kohlberg's stages of moral development in which the child's behavior is governed by the consequences of the behavior
conventional morality
second level of Kohlberg's stages of moral development in which the child's behavior is governed by conforming to the society's norms of behavior
postconventional morality
third level of Kohlberg's stages of moral development in which the person's behavior is governed by moral principles that have been decided on by the individual and that may be in disagreement with accepted social norms