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AP Psych > Semester One Final > Flashcards

Semester One Final Flashcards

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1
Q

Psychology

A

the scientific study of behavior and mental processes

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2
Q

Wilhelm Wundt

A

a German who established the first psychological laboratory in 1879

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3
Q

Structuralism

A

an early school of psychology that used introspection to explore the structural elements of the human mind

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4
Q

Introspection

A

the process of looking inward in an attempt to directly observe one’s own psychological processes

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5
Q

Functionalism

A

an early school of psychology countering structuralism that focused on how our minds and behaviors enable us to adapt, survive, and flourish

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6
Q

Evolutionary psychology

A

the study of the evolution of behavior and the mind, using principles of natural selection

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7
Q

Behaviorism

A

the view that psychology should be an objective science that studies behavior without reference to mental processes

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8
Q

Sigmund Freud

A

a famous personality theorist whose work focused on the unconscious mind; he founded psychoanalysis

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9
Q

Psychoanalysis

A

Sigmund Freud’s school of psychology that emphasized the ways our unconscious mind and childhood experiences affect our behavior

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10
Q

Cognitive psychology

A

the scientific study of mental processes, including perception, thought, memory, and reasoning

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11
Q

Hypothesis

A

a testable prediction that allow scientists to evaluate a theory

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12
Q

Case study

A

a research method in which one individual or group is studied in depth in the hope of revealing universal principles

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13
Q

Naturalistic observation

A

observing and recording behavior in naturally occurring situations without trying to manipulate and control the situation

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14
Q

Survey

A

a technique for obtaining the self-reported attitudes or behaviors of a particular group, usually by questioning a random sample of the group

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15
Q

Population

A

all those in a group being studied, from which samples may be drawn

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16
Q

Random Sample

A

a sample that fairly represents a population because each member has an equal chance of inclusion

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17
Q

Positive Correlation

A

as one variable increases or decreases, so does the other in the same direction (e.g. practice and performance)

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18
Q

Negative correlation

A

as one variable increases, the other decreases (e.g. stress and health)

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19
Q

Correlation coefficient

A

a statistical index of the relationship between two things (from -1.00 to +1.00)

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20
Q

Scatterplot

A

a graphed cluster of dots, each of which represents the values of two variables. The amount of scatter suggests the strength of the correlation.

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21
Q

Experimentation

A

a research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process. By random assignment of participants, the investigator aims to control other factors.

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22
Q

Independent variable

A

in an experiment, the variable whose effect is being studied. It is what is controlled by the experimenter.

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23
Q

Dependent variable

A

in an experiment, the outcome that is measured; the variable that may change in response to the independent variable

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24
Q

Operational definitions

A

a statement of the exact procedures (or operations) used in a research study

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25
Q

Control group

A

in an experiment, the group not exposed to the independent variable that serves as a comparison for evaluating the effect of the treatment

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26
Q

Experimental group

A

in an experiment, the group exposed to the independent variable

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27
Q

Random assignment

A

assigning participants to experimental and control groups by chance, thus minimizing preexisting differences between the different groups

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28
Q

informed consent

A

giving potential participants enough information about a study to enable them to choose whether they wish to participate

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29
Q

debriefing

A

the post-experimental explanation of a study, including its purpose and any deceptions, to its participants

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30
Q

Replication

A

repeating the essence of a research study to see whether the basic finding can be reproduced

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31
Q

Double-blind study

A

an experimental procedure in which both the research staff and participants are unsure whether the participants have received the treatment or a placebo

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32
Q

Placebo effect

A

any effect on behavior caused by the administration of an inert substance or condition, which the recipient assumes is an active agent

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33
Q

Mean

A

the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores

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34
Q

Median

A

the middle score in a distribution; half the scores are above it and half are below it

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35
Q

Mode

A

the most frequently occurring score(s) in a distribution

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36
Q

Range

A

the difference between the highest and lowest scores in a distribution

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37
Q

Standard deviation

A

a computed measure of how much scores vary around the mean score

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38
Q

Normal distribution (normal curve)

A
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39
Q

Central nervous system

A

the brain and spinal cord make up this division of the nervous system

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40
Q

Peripheral nervous system

A

the sensory and motor neurons that connect the central nervous system to the rest of the body make up this division of the nervous system

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41
Q

Somatic NS

A

the division of the peripheral nervous system that controls the body’s skeletal muscles

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42
Q

Autonomic NS

A

the division of the peripheral nervous system that controls the glands and the muscles of internal organs (like the heart)

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43
Q

Sympathetic NS

A

the division of the autonomic nervous system that arouses the body, mobilizing its energy

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44
Q

Parasympathetic NS

A

the division of the autonomic nervous system that calms the body, conserving its energy

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45
Q

Neurons

A

a nerve cell; the basic building block of the nervous system

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46
Q

Axon

A

the extension of a neuron that passes messages to other neurons or to muscles or glands

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47
Q

Dendrites

A

a neuron’s branching extensions that receive messages from other cells and conduct impulses toward the cell body

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48
Q

Cell body

A

the part of a neuron that contains the nucleus; the cell’s life-support center

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49
Q

Synapse

A

the meeting point between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this site is called the synaptic gap or synaptic cleft.

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50
Q

Myelin sheath

A

a fatty tissue that covers the axons of some neurons and helps speed neural impulses as the impulse hops from one node to the next

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51
Q

Neurotransmitters

A

chemical messengers that cross the synaptic gaps between neurons

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52
Q

Sensory neurons

A

neurons that carry incoming information from the body’s tissues and sensory receptors to the brain and spinal cord

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53
Q

Motor neurons

A

neurons that carry outgoing information from the brain and spinal cord to the muscles and glands

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54
Q

Interneurons

A

neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs

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55
Q

Acetylcholine

A

a neurotransmitter that enables muscle action, learning and memory. With Alzheimer’s disease, neurons that produce this deteriorate.

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56
Q

Endorphins

A

natural, opiate-like neurotransmitters linked to pain control and to pleasure

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57
Q

Dopamine

A

a neurotransmitter that influences movement, learning and attention. An undersupply of this is linked to tremors and decreased mobility in Parkinson’s disease.

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58
Q

Serotonin

A

a neurotransmitter that affects mood, hunger, sleep, and arousal. An undersupply of this is linked to depression.

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59
Q

Electroencephalogram (EEG)

A

an amplified recording of the waves of electrical activity that sweep across the brain’s surface measured by electrodes placed on the scalp

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60
Q

Magnetic resonance imaging (MRI)

A

a technique to show brain anatomy that uses magnetic fields and radio waves to produces computer-generated images of soft tissue

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61
Q

Positron emission tomography (PET)

A

a visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task

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62
Q

CT (computed tomography) scan

A

a brain scan that examines the brain by taking X-ray photographs from different angles

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63
Q

Functional magnetic resonance imaging (fMRI)

A

these scans show brain function and structure by revealing bloodflow and comparing successive MRI scans

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64
Q

Cerebral cortex

A
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65
Q

Frontal lobes

A

the portion of the cerebral cortex involved in speaking, muscle movements, making plans and judgement. These lobes lie just behind the forehead.

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66
Q

Broca’s area

A

an area of the frontal lobe that controls language expression by directing the muscle movements involved in speech

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67
Q

Occipital lobes

A

the portion of the cerebral cortex that receives information from the visual fields. These lobes are located at the back of the head.

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68
Q

Parietal lobes

A

the portion of the cerebral cortex that receives sensory input for touch and body position. These lobes lie at the top of the head and toward the rear.

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69
Q

Temporal lobes

A

the portion of the cerebral cortex that includes auditory areas that receive information from the ears. These lobes are roughly above the ears.

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70
Q

Wernicke’s area

A

an area of the temporal lobe involved in language reception and comprehension

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71
Q

Motor cortex

A

an area at the rear of the frontal lobes that controls voluntary movements

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72
Q

Somatosensory cortex

A

an area at the front of the parietal lobes that registers and processes body touch and movement sensations

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73
Q

Medulla

A

the base of the brainstem that controls heartbeat and breathing

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74
Q

Pons

A

lying above the medulla, this part of the brainstem helps to coordinate movements and control sleep

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75
Q

Reticular formation

A

a nerve network that plays an important role in controlling arousal. This network travels through the brainstem into the thalamus.

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76
Q

Hypothalamus

A

a neural structure that directs eating, drinking, and body temperature, helps govern the endocrine system, and is linked to emotion and reward. It is located below the thalamus.

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77
Q

Thalamus

A

the brain’s sensory control center. It directs messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and medulla.

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78
Q

Cerebellum

A

this brain structure coordinates movement output and balance and enables nonverbal learning and memory. It is located at the rear of the brainstem.

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79
Q

Limbic system

A

a neural system associated with emotions and drives that includes the amygdala, hypothalamus, and hippocampus. This system is located below the cerebral hemispheres.

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80
Q

Amygdala

A

two neural clusters in the limbic system linked to emotion, specifically aggression and fear

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81
Q

Hippocampus

A

a neural center in the limbic system that helps process explicit memories of facts and events for storage

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82
Q

Corpus callosum

A

the large band of neural fibers connecting the two brain hemispheres and carrying messages between them

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83
Q

Michael Gazzaniga (split-brain research)

A

a condition resulting from surgery that isolates the brain’s two hemispheres by cutting the fibers connecting them

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84
Q

Endocrine system

A
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85
Q

Hormones

A
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86
Q

Pituitary gland

A
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87
Q

Nature versus nurture

A

the controversy over the relative contributions that genes (nature) and experiences (nurture) make to the development of traits and behaviors

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88
Q

Genes

A

the biochemical units of heredity that make up the chromosomes

89
Q

Chromosomes

A

threadlike structures made of DNA molecules that contain the genes

90
Q

DNA

A
91
Q

Natural selection

A

the principle that inherited traits that better allow an organism to survive and reproduce will most likely be “selected” and passed on to succeeding generations

92
Q

Heritability

A

the extent to which differences among individuals can be attributed to their differing genes. This statistic takes a value between 0 and 1.

93
Q

Identical twins

A

monozygotic twins who develop from a single fertilized egg that splits in two, resulting in two genetically identical organisms

94
Q

Fraternal twins

A

dizygotic twins who develop from separate fertilized eggs who are genetically no closer than ordinary brothers and sisters

95
Q

Consciousness

A
96
Q

Circadian rhythm

A

our biological clock; regular bodily rhythms that occur on a 24-hour cycle (for example, temperature and wakefulness)

97
Q

Stage 1 sleep

A

the lightest sleep stage marked by slowed breathing and irregular brain waves, in which hypnagogic sensations may occur

98
Q

Stage 2 sleep

A

the “average” sleep stage characterized by its periodic sleep spindles (bursts of rapid, rhythmic brain-wave activity)

99
Q

Stage 3 sleep

A

the deepest sleep stage in which your brain emits large, slow delta waves, and you are hard to awaken

100
Q

REM sleep

A

rapid eye movement sleep; a recurring sleep stage during which vivid dreams commonly occur. The muscles are relaxed but other body systems are active in this stage.

101
Q

Activation synthesis hypothesis (dream theory)

A

theory on dreams that suggests the neural activity triggered by REM sleep evokes random visual memories, which our sleeping brain weaves into stories

102
Q

Sigmund Freud’s wish-fulfillment (dream theory)

A

Sigmund Freud’s theory on dreams that suggests dreams allow the dreamer to express otherwise unacceptable feelings

103
Q

Manifest content (Freud)

A

according to Sigmund Freud, the remembered story line of a dream

104
Q

Latent content (Freud)

A

according to Sigmund Freud, the underlying meaning of a dream

105
Q

Insomnia

A

a sleep disorder characterized by recurring problems in falling or staying asleep

106
Q

Narcolepsy

A

a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times.

107
Q

Sleep apnea

A

a sleep disorder characterized by temporary cessations of breathing (in which breathing stops) during sleep and repeated momentary awakenings

108
Q

Psychoactive drugs

A

chemical substances that alter perceptions and moods

109
Q

Depressants

A

drugs (such as alcohol) that reduce neural activity and slow body functions

110
Q

Stimulants

A

drugs (such as caffeine, nicotine, and cocaine) that excite neural activity and speed up body functions

111
Q

Hallucinogens

A

psychedelic (“mind-manifesting”) drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input

112
Q

Drug tolerance

A

the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug’s effect

113
Q

Withdrawal

A

the discomfort and distress that follow discontinuing the use of an addictive drug or behavior

114
Q

Sensation

A

the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

115
Q

Transduction

A

in sensation, the transforming of stimulus energies, such as sights and sounds, into neural impulses our brains can interpret

116
Q

Absolute threshold

A

the minimum stimulus energy needed to detect a particular stimulus 50 percent of the time

117
Q

Signal detection theory

A

a theory that assumes there is no single absolute threshold and that detection depends partly on a person’s experience, expectations, motivation, and alertness

118
Q

Difference threshold

A

the minimum difference between two stimuli required for detection; sometimes called the just noticeable difference (j.n.d.)

119
Q

Weber’s law

A

the principle that, to be perceived as different, two stimuli must differ by a constant percentage (rather than a constant amount)

120
Q

Sensory adaptation

A

diminished sensitivity as a consequence of constant stimulation (e.g. getting used to the temperature of a pool)

121
Q

Cornea

A

the eye’s clear, protective outer layer, covering the pupil and iris

122
Q

Pupil

A

the adjustable opening in the center of the eye through which light enters

123
Q

Iris

A

a ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening

124
Q

Retina

A

the light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information

125
Q

Cones

A

retinal receptor cells that detect fine detail and give rise to color sensations

126
Q

Rods

A

retinal receptors that detect black, white, and gray, and are necessary for peripheral and twilight vision

127
Q

Fovea

A

the central focal point in the retina, around which the eye’s cones cluster

128
Q

Lens

A

the transparent structure behind the pupil that changes shape to help focus images on the retina

129
Q

Accommodation

A

the process by which the eye’s lens changes shape to focus near or far objects on the retina

130
Q

Optic nerve

A

the nerve that carries neural impulses from the eye to the brain

131
Q

Trichromatic theory (color vision)

A

the theory that the retina contains three different types of color receptors (one most sensitive to red, one to green, one to blue) which, when stimulated in combination, can produce the perception of any color

132
Q

Opponent process theory (color vision)

A

the theory that opposing retinal processes (red-green, blue-yellow, black-white) enable color vision; this theory explains negative afterimages

133
Q

Afterimages

A
134
Q

Color blindness

A
135
Q

Eardrum

A

a tight membrane located at the end of the ear canal that vibrates when struck by sound waves

136
Q

Cochlea

A

a coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses

137
Q

Pitch

A

a tone’s experienced highness or lowness; depends on frequency

138
Q

Place theory

A

in hearing, the theory that links the pitch we hear with the place where the cochlea’s membrane is stimulated

139
Q

Frequency theory

A

in hearing, the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone, thus enabling us to sense its pitch

140
Q

Taste buds

A
141
Q

Olfaction

A

the sense of smell

142
Q

Gate control theory

A

the theory that the spinal cord contains a neurological “gate” that blocks pain signals or allows them to pass on to the brain

143
Q

Vestibular sense

A

our sense of body movement and position that enables our sense of balance

144
Q

Semicircular canals

A

three fluid-filled canals in the inner ear responsible for our sense of balance

145
Q

Bottom up processing

A

analysis that begins with the sensory receptors and works up to the brain’s integration of sensory information

146
Q

Top down processing

A

information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations

147
Q

Perception

A

the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events

148
Q

Gestalt psychology

A

an early perspective in psychology that focused particularly on the perception of integrating pieces into meaningful wholes

149
Q

Binocular cues (depth perception)

A

a depth cue, such as retinal disparity, that depends on the use of two eyes

150
Q

Retinal disparity

A

by comparing retinal images from the two eyes, the brain computes distance; the greater the disparity (difference) between the two, the closer the object

151
Q

Monocular cues (depth perception)

A

a depth cue, such as interposition, available to either eye alone

152
Q

Linear perspective

A

a depth cue stating parallel lines appear to meet in the distance; the sharper the angle of convergence, the greater the perceived distance

153
Q

Interposition

A

a depth cue stating if one object partially blocks our view of another, we perceive it as closer

154
Q

Perceptual constancy

A

perceiving objects as unchanging (having consistent color, shape, and size) even as illumination and retinal images change

155
Q

Classical conditioning

A

a type of learning in which we link two or more stimuli; as a result, the first stimulus leads to a response in anticipation of the second stimulus

156
Q

Unconditioned stimulus

A

in classical conditioning, a stimulus that naturally and automatically triggers an unconditioned response

157
Q

Unconditioned response

A

in classical conditioning, an unlearned, naturally occurring response to an unconditioned stimulus (such as salivation to food in the mouth)

158
Q

Conditioned stimulus

A

in classical conditioning, an originally neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response

159
Q

Conditioned response

A

in classical conditioning, a learned response to a previously neutral (but now conditioned) stimulus

160
Q

Ivan Pavlov

A

Russian physiologist who described classical conditioning after his landmark study with dogs in which he trained them to drool at the sound of a bell by pairing the bell with food

161
Q

John B. Watson

A

American psychologist who founded behaviorism and conditioned an infant (“Little Albert”) to fear small animals by pairing an animal with a loud noise

162
Q

Stimulus generalization

A

the tendency, once a response has been conditioned, for stimuli similar to the conditioned stimulus to elicit similar responses. (In operant conditioning, generalization occurs when responses learned in one situation occurs in other, similar situations.)

163
Q

Stimulus discrimination

A

in classical conditioning, the learned ability to distinguish between a conditioned stimulus and similar stimuli that do not signal an unconditioned stimulus. (In operant conditioning, the ability to distinguish responses that are reinforced from similar responses that are not reinforced.)

164
Q

Spontaneous recovery

A

the reappearance, after a pause, of a previously extinguished conditioned response

165
Q

Extinction (classical conditioning)

A

the diminishing of a conditioned response; occurs in classical conditioning when an unconditioned stimulus (US) does not follow a conditioned stimulus (CS); occurs in operant conditioning when a response is no longer reinforced

166
Q

Shaping

A

an operant conditioning procedure in which reinforcers guide behavior toward closer and closer approximations of the desired behavior

167
Q

Law of effect

A

Thorndike’s principle that rewarded behavior is likely to recur and punished behavior is not

168
Q

Operant conditioning

A

a type of learning in which a behavior becomes more likely to recur if followed by a reinforcer or less likely to recur if followed by a punisher

169
Q

Reinforcement

A

in operant conditioning, any event that strengthens the behavior it follows

170
Q

Positive reinforcement

A

increasing behaviors by presenting positive stimuli, such as food

171
Q

Negative reinforcement

A

increasing behaviors by stopping or reducing aversive stimuli, such as nagging

172
Q

B. F. Skinner

A

American psychologist who studied operant conditioning primarily using rats and pigeons

173
Q

Primary reinforcers

A

an innately reinforcing stimulus, such as one that satisfies a biological need like food

174
Q

Secondary reinforcers

A

a “secondary” stimulus that gains its reinforcing power through its association with a primary reinforcer, such as money

175
Q

Continuous reinforcement

A

reinforcing the desired behavior every time it occurs

176
Q

Partial reinforcement

A
177
Q

Fixed ratio schedule

A

in operant conditioning, a reinforcement schedule that reinforces a behavior only after a specified number of responses

178
Q

Variable ratio schedule

A

in operant conditioning, a reinforcement schedule that reinforces a behavior after an unpredictable number of responses

179
Q

Fixed interval schedule

A

in operant conditioning, a reinforcement schedule that reinforces a behavior only after a specified time has elapsed

180
Q

Variable interval schedule

A

in operant conditioning, a reinforcement schedule that reinforces a behavior at unpredictable time intervals

181
Q

Punishment

A

an event that tends to decrease the behavior that it follows

182
Q

Extinction (operant conditioning)

A

the diminishing of a conditioned response; occurs in classical conditioning when an unconditioned stimulus (US) does not follow a conditioned stimulus (CS); occurs in operant conditioning when a response is no longer reinforced

183
Q

Intrinsic motivation

A

a desire to perform a behavior effectively for its own sake

184
Q

Extrinsic motivation

A

a desire to perform a behavior to receive promised rewards or avoid threatened punishment

185
Q

Overjustification effect

A

the effect of promising a reward for doing what one already likes to do. The person may now see the reward, rather than intrinsic interest, as the motivation for performing the task.

186
Q

Observational learning (social learning)

A

learning by observing others (also called social learning)

187
Q

Albert Bandura

A

American psychologist who discovered in his “Bobo doll” studies that children will model aggressive behavior of adults

188
Q

Mirror neurons

A

frontal lobe neurons that some scientists believe fire when we perform certain actions or observe another doing so. The brain’s mirroring of another’s action may enable imitation and empathy.

189
Q

Insight

A

a sudden realization of a problem’s solution

190
Q

Cognition

A
191
Q

Memory

A

the persistence of learning over time through the encoding, storage, and retrieval of information

192
Q

Long term potentiation (LTP)

A

an increase in a cell’s firing potential after brief, rapid stimulation. This is believed to be a neural basis for learning and memory.

193
Q

Encoding

A

the process of getting information into the memory system

194
Q

Storage

A

the process of retaining encoded information over time

195
Q

Retrieval

A

the process of getting information out of memory storage

196
Q

Sensory memory

A

the immediate, very brief recording of sensory information in the memory system

197
Q

Working memory

A

a newer understanding of short-term memory that adds conscious active processing of incoming information and of information retrieved from long-term memory

198
Q

Long-term memory

A

the relatively permanent and limitless storehouse of the memory system

199
Q

Explicit memory (also known as declarative memory)

A

retention of facts and experiences that one can consciously know and “declare” (also called declarative memory)

200
Q

Semantic memory

A

explicit memory of facts and general knowledge

201
Q

Episodic memory

A

explicit memory of personally experienced events

202
Q

Flashbulb memories

A

a clear, sustained memory of an emotionally significant moment or event

203
Q

Implicit memory (also known as nondeclarative memory)

A

retention of learned skills or classically conditioned associations independent of conscious recollection

204
Q

Procedural memory

A
205
Q

Priming

A

the activation, often unconsciously, of particular associations in memory

206
Q

Serial position effect

A

our tendency to recall best the last and first items in a list

207
Q

Primacy effect

A

our tendency to remember words at the beginning of a list especially well after a delay

208
Q

Recency effect

A

our tendency to remember words at the end of a list especially well

209
Q

Rehearsal

A
210
Q

Mnemonic devices

A

memory aids, especially those techniques that use vivid imagery and organizational devices

211
Q

Chunking

A

organizing items into familiar, manageable units

212
Q

Storage decay

A
213
Q

Proactive interference

A

the disruptive effect of older learning on the recall of new information

214
Q

Retroactive interference

A

the disruptive effect of newer learning on the recall of old information

215
Q

Amnesia

A
216
Q

Anterograde amnesia

A

an inability to form new memories

217
Q

Retrograde amnesia

A

an inability to retrieve information from one’s past

218
Q

Elizabeth Loftus

A
219
Q

Patient H.M.

A

AP Psych (6 decks)

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