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General Psychology
Cumulative Terms for General Psychology: Psychological Science
177
Psychology
Undergraduate 1
12/10/2011

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Term
Accuracy
Definition

The extent to which an experimental measure is free from error

Term
Action Potential
Definition
The neural impulse that passes along the axon and subsequently causes the release of chemicals from the terminal buttons
Term
All-or-none principle
Definition
The principle whereby a neuron fires with the same potency each time, although requency can vary; it either fires or not--it cannot partially fire
Term
Amygdala
Definition
A brain structure that serves a vital role in our learning to associate things with emotional responses and in processing emotional information
Term
Analogical Representation
Definition
A mental representation that has some of the physical characteristics of an object; it is analogous to the object
Term
Availability Heuristic
Definition
Making a decision based on th eanswer that most easily comes to mind
Term
Axon 
Definition
A long narrow outgrowth of a neuron by which information is transmitted to other neurons
Term
Case Study
Definition
A research method that involves the intensive examination of on eperson
Term
Cell Body
Definition
In the neuron, where information from thousands of neurons is collected and processed
Term

Central Nervous System

(CNS)

Definition
The Brain and spinal cord.
Term
Cerebellum
Definition
A large, convoluted protuberance at the back of the brainstem, essential for coordinated movement and balance.
Term
Circadian Rhythms
Definition

The regulation of biological cycles into regular patterns.

 

Refers to sleep.

Term
Axon Hillock
Definition
Where the axon meets the myelin sheath. The initiation point of action potentials.
Term

Peripheral Nervous System

(PNS)

Definition
All nerve cells in the body that are not part of the central nervous system. The PNS includes the somatic and autonomic nervous system.
Term
Dendrites
Definition
Branchlike extensions of the neuron that detect information from other neurons.
Term
Synapse
Definition
The site for chemical communication between neurons, which contains extracellular fluid; also known as the synaptic cleft.
Term
Myelin Sheath
Definition
A fatty material, made up of glial cells, that insulates the axon and allows for the rapid movement of electrical impulses along the axon.
Term
Nodes of Ranvier
Definition
Small gaps of exposed axon, between the segments of myelin sheath, where action potentials are transmitted.
Term
Terminal Button
Definition
Small nodules, at the ends of axons, that rlease chemical signals from the neruon to the synapse.
Term
Resting Potential
Definition
The Electrical charge of a neuron that is not active.
Term
Reuptake
Definition
The process whereby a neurotransmitter is taken back into the presynaptic terminal buttons, thereby stopping its activity.
Term
Hypothalamus
Definition
A small brain structure that is vital for temperature regulation, emotion, sexual behavior, and motivation.
Term
Thalamus
Definition
The gateway to the brain; it receives almost all incoming sensory information before that information reahces the cortex.
Term
Hippocampus
Definition
A brain structure important for the formation of certain types of memory.
Term
Frontal Lobes
Definition
The region at the front of the cerebral cortex concerned with planning and movement.
Term
Temporal Lobes
Definition
The lower region of the cerebral cortex, important for processing auditory information and for memory.
Term
Occipital Lobe
Definition
A region of the cerebral cortex, at the back of the brain, important for vision.
Term
Parietal Lobe
Definition
A region of the cerebral cortex, in front of the occipital lobes and behind the frontal lobes, important for the sense of touch and of the spatial layout of an environment.
Term
Somatic Nervous System
Definition
A major component of the peripheral nervous system; it transmits sensory signals to the Central Nervous System via nerves.
Term

Autonomic Nercous System

(ANS)

Definition
A major component of the peripheral nervous system; it regulates the body's internal environment by stimulating glands and by maintaining internal organs such as the heart, gall bladder, and stomach
Term
Parasympathetic
Definition
A division of the Autonomic Nervous System; it returns the body to its resting state.
Term
Sympathetic
Definition
A division of the Autonomic Nervous System; it prepares the body for action.
Term
Endocerine System
Definition
A communication system that uses hormones to influence thoughts, behaviors, and actions.
Term
Split Brain
Definition

A condition in which the corpus callosum is surgically cut and the two hempisphers of the brain do not receive information directly from each other.

Items seen with the left eye can verbally communicate what was seen whereas on the right eye the item can be picked up or pointed out with the left hand.

Term
Insomnia
Definition
A disorder characterized by an inability to sleep.
Term
Narcolepsy
Definition
A sleep disorder in which people fall asleep during normal waking hours.
Term
Sleep Apnea
Definition
A disorder in which a person stops breathing while asleep.
Term
Stages of Sleep
Definition
There are four stages progressing from 1 to 4. 4 is the deepest. These stages repeat throughout the night. Stage one is where REM occurs resulting in paralysis and dreaming.
Term
Manifest Content
Definition
The plot of a dream; the way a dream is remembered. Part of Freud's theory of dreams.
Term
Latent Content
Definition
What a dream symbolizes, or the material that is disguised in a dream to protect the dreamer.
Term
Sensation
Definition
The sense organs' responses to external stimuli and the transmission of these responses to the brain.
Term
Perception
Definition
The processing, organization, and interpretation of sensory signals; it results in an internal representation of the stimulus.
Term
Transduction
Definition
A process by which sensory receptors produce neural impulses when they receive physical or chemical stimulation.
Term

Signal Detection Theory

(SDT)

Definition
A theory of perception based on the idea that the detection of a faint stimulus requires a judgement-- it is not an all-or-none process.
Term
Sensory Adaption
Definition

A decrease in sensivity to a constant level of stimulation. Shows the adaptation of the mind.

Example: Forgetting about a ticking clock.

Term
Rods
Definition
Retinal cells that respond to low levels or illumination and result in black-and-white perception
Term
Cones
Definition
Retinal cells that respond to higher levels of illumination and result in color perception.
Term
Fovea
Definition
The center of the retina, where cones are densely packed.
Term
Monocular Depth Cues
Definition

Uses occlusion which is when a near object blocks one that is farther away, and relative size meaning far-off objects project smaller retinal images than close objects do. Familiar size, linear perspective, texture gradient and position relative to horizon are cues as well.

Cues of depth perception that are available to each eye alone.

Term
Binocular Depth Cues
Definition

Uses binocular disparity which is caused by the distance between a person's eyes, which provides each eye with a slightly different image.

Cues of depth perception that arise from the fact that people have two eyes.

Term
Classical Conditioning
Definition

Also known as Pavlovian conditioning;

A type of learned response that occurs when a neutral object comes to elicit a reflexive response when it is associated with a stimulus that already produces that response

Term
Operant Conditioning
Definition

Also known as instrumental conditioning;

A learning process in which the consequences of an action determine the likelihood that it will be performed in the future.

Term

Unconditioned Stimulus

(US)

Definition
A stimulus that elicits a response, such as a reflex, without any prior learning.
Term

Unconditioned Response

(UR)

Definition
A response that does not have to be learned, such as a reflex.
Term

Conditioned Stimulus

(CS)

Definition
A stimulus that elicits a response only after learning has taken place.
Term

Conditioned Response

(CR)

Definition
A response that has been learned.
Term
Extinction
Definition
A process in which the conditioned response is weakened when the conditioned stimulus is repeated without the unconditioned stimulus.
Term
Spontaneous Recovery
Definition
A process in which a previously extinguished response reemerges following presentation of the conditioned stimulus.
Term
Stimulus Discrimination
Definition
A differentiation between two similar stimuli when only one of them is consistently associated with the unconditioned stimulus.
Term
Stimulus Generalization
Definition
Occurs when stimuli that are similar but not identical to the conditioned stimulus produce the conditioned response.
Term
Rescorla-Wagner Model
Definition

A learning model;

A cognitive model of classical conditioning; it states the strength of the CS-US association is determined by the extent to which the unconditioned stimulus is unexpected.

Term
Shaping
Definition
A process of operant conditioning; it involves reinforcing behaviors that are increasingly similar to the desired behavior.
Term
Positive Reinforcement
Definition

The increase in the probability of a behavior's being repeated following the administration of a stimulus

Giving something desired.

Term
Negative Reinforcement
Definition

The increase in the probability of a behavior's being repeated through the removal of a stimulus.

Taking away something unwanted.

Term
Positive Punishment
Definition

Punishment that occurs with the administration of a stimulus and thus decreases the probability of a behaviors recurring.

Giving something unwanted

Term
Negative Punishment
Definition

Punishment that occurs with the removal of a stimulus and thus decreases the probability of a behavior's recurring.

Taking away something desired.

Term
Fixed Ratio Schedule
Definition

A schedule in which reinforcement is consistently provided after a specific number of tims.

Example: Always every 3 times.

Term
Fixed Interval
Definition

A schedule in which reinforcement is consistently provided after a specific unit of time.

Example: Every 1 hour

Term
Variable Ratio
Definition

A schedule in which reinforcement is applied at different rates.

Example: After 2 instances, then 7, then 9, etc.

Term
Variable Interval
Definition

A schedule in which reinforcement is applied at different times.

Example: After 1 hour, the 3 hours, the 8 hours, etc.

Term
Habituation
Definition
A decrease in behavioral response following repeated exposure to nonthreatening stimuli.
Term
Encoding Specificity Principle
Definition
Any stimulus that is encoded along with an experience can later trigger memory for the experience.
Term
Working Memory
Definition
An active processing system that keeps different types of information available for current use.
Term
Explicit Memory
Definition
The process involced when people remember specific information.
Term
Implicit Memory
Definition
The system underlying unconcious memories; things we do not know we remember.
Term
Prospective Memory
Definition
Remembering to do something at some time in the future.
Term
Prospective Memory
Definition
Remembering to do something at some time in the future.
Term
Proactive Interference
Definition
When prior information inhibits the ability to remember new information.
Term
Retroactive Interference
Definition
When new information inhibits the ability to remember old information.
Term
Cornea
Definition
The clear outer covering of the eye
Term

Seven Sins of Memory

Definition

1. Transcience- Reduced memory over time like the plot of a movie.

2. Absentmindedness- Reduced memory due to failing to pay attention

3. Blocking-Inability to remember needed information

4. Misattribution-Assigning a memory to the wrong source

5. Suggestibility- Altering a memory because of misleading information.

6. Bias- Influence of current knowledge on our memory for past events.

7. Persistence- The resurgence of unwanted or disturning memoreis that we would like to forget.

Term
Symbolic Representation
Definition

An abstract mental representation that does not correspond to the physical features of an object or idea.

Example: A Word

Term
Representativeness Heuristic
Definition
A rule for categorization based on how similar the person or object is to our prototypes for that category.
Term

IQ

Intelligence Quotient

Definition
The number computed by dividing a child's estimated mental age by the child's chonological age and then multiplying this number by 100
Term
Homeostasis
Definition
The tendency for bodily functions to maintain equilibrium.
Term
Yerkes-Dodson Law
Definition
According to this law, perfomance inccreases with arousal until an optimal point, after which arousal interferes with performance.
Term
Extrinsic Motivation
Definition
Motication to perform an activity because of the external goals toward which that activity is directed.
Term
Intrinsic Motivation
Definition
Motivation to perform an activity because of the value or pleasure associated with that activity, rather than for an apparent external goal or purpose.
Term
Somatic Markers
Definition
Bodily reactions that arise from the emotional evaluation of an actions consequences.
Term
Fight-or-Flight Respone
Definition
The physiological preparedness of animals to deal with danger.
Term
Attachment Styles
Definition

Secure: majority of infants who are readily comforted when their caregiver returns after a brief separation

Avoidant: infants ignore their caregiver when he or she returns after a brief separation                                                    

Anxious-Ambivalent: infants become extremely when their caregiver leaves but reject the caregiver when he or she returns.  

Disorganize: infans give mixed responses when their caregiver leaves and then returns from a short absence.

 

 

 

 

 

 

 

 

 

 

Term
Thoery of Mind
Definition
The term used to describe the ability to explain and predict other people's behavior as a result of recognizing their mental state.
Term
Discrimination
Definition
The inappropriate and unjustified treatment of people based solely on their group membership.
Term
Confound
Definition
Anything that affects a dependent variable and may unintentionally vary between the experimental conditions of a study.
Term
Control Group
Definition
The participants in a study that receive no intervention or an intervention dfferent from the one being studied.
Term
Correlational Study
Definition
A research method that examines how variables are naturally related in the real world, without any attempt by the researcher to alter them.
Term
Deductive Reasoning
Definition

Using a belief or rule to determine if a conclusion is valid (follows logically from the belief of view)

Broad to Narrow 

Term
Inductive Reasoning
Definition
Using examples or instances to determine if a rule or conclusion is likely to be true.
Term
Descriptive Studies
Definition
A research method taht involves observing and noting the behavior of people or other animals in order to provide a systematic and objective analysis of behavior.
Term
Descriptive Statistics
Definition
Overall summary of data.
Term
Inferential Statistics
Definition
A set of procedures used to make judgments about wheter differences actually exist between sets of numbers.
Term
Directionality Problem
Definition
When researchers find a relationship between two variables in a correlational stud, they cannot determine which variable may have caused changes in the other variable.
Term
Experiment
Definition
A study that tests causal hypotheses by measuring and manipulating variables.
Term
Experimental Group
Definition
The participants in a study that receive the intervention.
Term
Experimenter Expectancy Effect
Definition

Actual change in the behavior of the people or animals being observed that is due to observer bias.

Example: One group being told their rats are genetically smarter so they perform better in mazes.

Term
Hypothesis
Definition
A specific prediction of what should be observed in the world if a theory is correct.
Term
Independent Variable
Definition
In an experiment, the condition that is manipulated by the experimenter to examine its impact on the dependent variable.
Term
Dependent Variable
Definition
In an experiment, the measure that is affected by manipulation of the independent variable.
Term

Institutional Review Board

(IRB)

Definition
Groups of people responsible for reviewing proposed research to ensure that it meets the accepted standdards of science and provides for the physical and emotional well being of research participants.
Term
Iris
Definition
The colored muscular circle on the surface of the eye; it changes chape to let in more or less light.
Term
Longitudinal Study
Definition
A research method that measures the same participants multiple times over a lengthy period of time.
Term
Mean
Definition
A measure of central tendency that is the arithmetic average of a set of numbers
Term
Median
Definition
A measure of central tendency that is the value in a set of numbers that falls exactly halfway between the highest and lowest values. Middle.
Term
Mode
Definition
A measure of central tendency that is the most frequent score or value in a set of numbers. Average.
Term
Naturalistic Observation
Definition
A passive descriptive study in which observers do not change or alter ongoing behavior.
Term
Nature vs. Nurture
Definition
The debateof whether biology or experience effects psychological tendencies more. It has been agreed they both have an affect.
Term
Neurotransmitter
Definition
A chemical substance that carries signals from one neuron to another.
Term
Object Permanence
Definition
The understanding that an object continues to exist even when it cannot be seen
Term
Observer Bias
Definition
Systematic errors in observation that occur because of an observer's expectation.
Term
Participant Observation
Definition
A type of descriptive study in which the researcher is actively involved in the situation.
Term
Pupil
Definition
The small opening in the eye; it lets in light light waves.
Term
Reactivity
Definition
When the knowledge that one is being observed alters the behavior being observed.
Term
Receptors
Definition
In neurons, specialized protein molecules, on the postsynaptic membrane, that neurotransmitters bind to after passing across the synaptic cleft.
Term
Reliability
Definition
The extent to which a measure is stable and consistent over time in similar conditions.
Term
Replication
Definition
Repetition of an experiment to confirm the results.
Term
Retina
Definition
The thin inner surface of the back of the eyeball. The retinal contains photorecptors that transduce light into neural signals.
Term
Sample
Definition
A subset of population.
Term
Population
Definition
Everyone in the group the experimenter is interested in.
Term
Scientific Method
Definition
A systematic procedure of observing and measuring phenomena to answer question about what happens, when it happens, what causes it, and why.
Term
Selection Bias
Definition
When participants in different groups in an experiment differ systematicaly.
Term
Standard Deviation
Definition
A statistical measure of how far away each value is, on average, from the mean.
Term
Third Variable Problem
Definition
When the experimenter cannot directly manipulate the independent variable and therefore cannot be confident that another, unmeasured variable is not the actual cause of differences in the dependent variable.
Term
Validity
Definition
The extent to which the data collected address the research hypothesis in the way intended.
Term
Absolute Threshold
Definition
The minimum intensity of a stimulation that must occur before you experience a sensation, or the stimulus intensity detected above chance.
Term
Difference Threshold
Definition
The just noticeable difference between two stimuli-- the minimum amount of change required for a person to detect a difference.
Term
Self-Efficacy
Definition
The expectancy that your efforts will lead to success; helps mobilize your energies.
Term
Achievement Motive
Definition
The desire to do well relative to standards of excellence.
Term
Afferent Neurons
Definition
Neruons that send sensory information from the sensory organs to the Central Nervous System.
Term
Efferent Neurons
Definition
Neurons that send information from the Central Nervous System to the muscles and other organs.
Term
Corpus Callosum
Definition

A bridge of millions of axons that connects the two brain hemispheres.

Term
Motor Cortex
Definition
Located at the back of the frontal lobe and controls all the movements of the body.
Term
Somatosensory Cortex
Definition

Located at the front of the parietal lobe it is where the senses are found. It groups senses near to each other.

Example: Senses of fingers are near senses of palms.

Term
Egocentrism
Definition
Being unable to see the point of view of someone else, only seeing there own.
Term
Depolarizaton
Definition
When the membrane of a cell becomes more positive or less negative leading it closer to an action potential.
Term
Hyperpolarization
Definition
The opposite of depolarization; a cell becomes more negative leading it further from an action potential occuring.
Term
Elaboritive Rehearsal
Definition
Encodes the information in more meaningful ways, such as thinking about the item conceptually giving it a deeper meaning.
Term
Hawthorne Effect
Definition
Being observed can lead participants to change their behavior.
Term
Informed Consent
Definition
A particpants agreeing to be in a case study by choice and with their knowing.
Term
Loss Aversion
Definition
Humans do not like loss and will do whatever they can to avoid it.
Term
MAOI vs. SSRI
Definition
Antidepressent drugs; MAOI is the best medication however has many side effects; SSRI's are often used first.
Term
Models of Concept Organization
Definition

Defining Attribute Model: a concept is characterized by a list of features that are necessary to determine if an object is a member of the category.

Prototype Model: says that some members of a category are more representative than others (depending on culture)

Exemplar Model: information stored about the members of a category is used to determine category membership.

Term
Piaget's Theory
Definition

During each stage of development children from new schemas.

Made up of Sensorimotor, Peroperational, Concrete Operational, Formal Operational

Term
Pons
Definition
Located in the brainstem and controls equilibriam, sleep functions, breathing and other such things.
Term
Positive Correlation
Definition
As the values of variable one increase the valuables of variable two increase.
Term
Negative Correlation
Definition
As the values of one variable increase the valuable of the other variable decrease.
Term
Primacy Effect
Definition
People have a good memory for items at the begging of a list.
Term
Recency Effect
Definition
People also have a good memory for items at the end of a list.
Term
Psychophysics
Definition

Assesses how much physical energy is required for our sense organs to detect a stimulus.

Includes absolute and different thresholds.

Term
Stimulants
Definition
Drugs that increase behavioral and mental activity like Cocaine and Methampetamine
Term
Depressants
Definition
A substance that slows down the normal processes of the Central Nervous System such as Alchohol
Term
Synaptic Vesicles
Definition
Hold neurons that are released into the synaptic cleft.
Term
Tolerance
Definition
Physically adjusting to a drug requiring more of a specific item for the same affect.
Term
Weber's Law
Definition
The just noticeable difference between two stimuli is based on a proportion of the original stimulus rather than on a fixed amount of difference.
Term
Modal Memory Model
Definition
The three-stage system that involves Sensory Memory, Working Memory, and Long-term Memory.
Term
Schachter-Singer Two-Factor Theory of Emotion
Definition
When people experience arousal they look for a source. Tested people with adrenaline, those who knew they were injected gave credit to the drug. Those who did not know they were injected just felt they were happy.
Term

James-Lange Theory of Emotion

vs.

Cannon-Bard Theory of Emotion

Definition

J-L: Stimulus to Arousal to Emotion

C-B: Stimulus: Arousal and Emotion are processed separately.

Term
Erikson's Theory
Definition
A theory of identity; contains 9 stages from infancy to old age, each with its own identity challenge.
Term
Gestalt Principles
Definition

A set of rules defining perception;

1. Proximity- We group closer objects together.

2. Similarity- We tend to group figures according to how closely they resemble each other.

3. Good Continuation- We tend to interpret intersecting lines as continuous

5. Closure-We tend to complete figures even when gaps exist.

6. Illusory Contours- We tend to perceive contours even when they do not exist.

 

 

 

 

Term
Harlow's Contact Comfort Study
Definition
Children need a mother; put rhesus monkeys in a cage with two mothers. Baby monkeys clung to the life-like mother and went to the wire mother for food only.
Term
Kholberg's Stages of Moral Development
Definition

Pre-Conventional-Self Interest

Conventional-Social Norms

Post Conventional-Absolute Tuth (Above Law)

Term
Cattell Intelligence Theory
Definition
Proposed g (general intelligence) is composed of fluid and crystalized intelligence.
Term
Garder's Intelligence Theory
Definition
Believed in mulitple intelligences. Different things people could be good at from athletics to music.
Term
Sternberg's Intelligence Theory
Definition

Made of three things

Analytical

Practical

Creative

Term
Spearman's Intelligence Model
Definition
Had the idea of general intelligence (g); being good at one thing often makes one good at other similar processes.
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