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PSYCH 100-X test 2
VOCABULARY
80
Psychology
Undergraduate 1
03/14/2010

Additional Psychology Flashcards

 


 

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Term
psychoactive drug
Definition
a chemical substance that alters perceptions and moods.
Term
tolerance
Definition
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 drugs effect.
Term
withdrawal
Definition
the discomfort and distress that follow discontinuing the use of an addictive drug.
Term
physical dependence
Definition
a physiological need for a durg, marked by ulpleasant withdrawl symptoms when the drug is discontinued.
Term
psychological dependence
Definition
addiction
Term
depressants
Definition
drugs( alcohol, barbiturates and opiates) that reduce neural activity and slow body functions.
Term
barbituates
Definition
drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement.
Term
opiates
Definition
opium and its derivatives such as morphine and heroine, they depress neural activity temporarily lessening pain and anxiety.
Term
stimulants
Definition
drugs (caffiene nicotine, cocaine and ectasy) that excite neural activity and speed up body functions
Term
amphetamines
Definition
drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes.
Term
methamphetamine
Definition
a powerfully addictive drug that stimulates the central nervous system with speeded up body functions and associated energy and mood changes; over time appears to reduce baseline dopamine levels.
Term
Ectasy (MDMA)
Definition
a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short term health risks and longer term harm to serotonin-producing neurons and mood to mood cognition.
Term
sensation
Definition
the process by which our sensory receptors and nervous system receive and represent stimulus energies in the environment
Term
preception
Definition
the process of organizing and interpreting sensory information enabling us to recognize meaningful objects and events.
Term
bottom up processing
Definition
analysis that begins with the sensory receptors and works up to the brains integration of sensory information.
Term
top down processing
Definition
information processing guided by higher level mental processes as when we construct perceptions drawing on our experience and expectations.
Term
psychophysics
Definition
the study of relationships between the physical characteristics of stimuli, such as their intensity and our psychological experience of them.
Term
absolute threshold
Definition
the minimum stimulation needed to detect a particular stimulus 50 percent of the time.
Term
signal detection theory
Definition
a theory predicting how and when we detect the presence of a faint stimulus (signal) amid background stimulation (noise). Assumes there is no single absolute threshold and that detection depends partly on a persons experience, expectations motivation and alertness.
Term
subliminal
Definition
below ones absolute threshold for conscious awareness.
Term
priming
Definition
the activation, often unconscious of certain associations thus disposing ones perception memory or response.
Term
difference threshold
Definition
the minimum difference between two stimuli required for detection 50 percent of the time. we experience the difference threshold as a just noticeable difference
Term
Webers law
Definition
the princeiple that, to be perceived as differnt two stimuli must differ by a constant minimum percentage (rather than a constant amount)
Term
sensory adaptation
Definition
diminished sensitivity as a consequence of constant stimulation.
Term
behavioral medicine
Definition
an interdisiplinary field that integrates behavioral and medical knowledge and applies that knowledge to health and disease.
Term
health psychology
Definition
a subfield of psychology that provides psychology's contribution to behavioral medicine.
Term
stress
Definition
the process by which we perceive and respond to certain events called stressors, that we appraise as threatening or challenging.
Term
general adaptation syndrome (GAS)
Definition
Selyes concept of the bodys adaptive response to stress in three phases- alarm, resistance, exhaustion.
Term
coronary heart disease
Definition
the clogging of the vessels that nourish the heart muscle the leading cause of death in many developed countries.
Term
Type A
Definition
Friedman and Rosenman's term for competitive hard-driving impatient verbally agressive and anger prone people
Term
Type B
Definition
Friedman and Rosenmans term for easygoing relaxed people
Term
Psychophysiological illness
Definition
litterally, mind-body illness, any stress related physcial illness such as hypertension and some headaches
Term
psychoneuroimmunology(PNI)
Definition
the study of how psychological, neural and endocrine processes together affect the immune system and resulting health.
Term
lymphocytes
Definition
the two types of white blood cells that are part of the body's immune system: Blymphocytes form in the bone marrow and release antibodies that fight bacterial infections; T lymphocytes form in the thymus and other lymphatic tissue and attack cancer cells, viruses and foreign substances.
Term
aerobic exercise
Definition
sustained exercise that increases heart and lung fitness may also reduce stress, depression and anxiety.
Term
biofeedback
Definition
a system for electronically recording, amplifying and feeding back information regarding a subtle physiological state such as blood pressure or muscle tension.
Term
complementary and alternative medicine (CAM)
Definition
as yet unproven health care treatments intend to supplement(complement) or serve as alternatives to conventional medicine and which typically are not widely taught in medical schools used in hospitals or reimbursed by insurance companies. when research shows a therapy to be safe and effective, it usually then becomes part of accepted medical practice.
Term
associative learning
Definition
learning that certain events occur together. The events may be two stimuli (as in classical conditioning) or a response and its consequences (operant conditioning)
Term
associative learning
Definition
learning that certain events occur together. The events may be two stimuli (as in classical conditioning) or a response and its consequences (operant conditioning)
Term
classical conditioning
Definition
a type of learning in which one learns to link two or more stimuli and anticipate events.
Term
learning
Definition
a relatively permanent change in an organisms behavior due to experience
Term
behaviorism
Definition
the view that psychology (1) should be an objective science that (2) studies behavior without reference to mental processes. Most research psychologists today agree with 1 but not 2
Term
Unconditioned response (UR)
Definition
in classical conditioning, the unlearned naturally occurring response to the unconditioned stimulus (US) such as salivation when food is in the mouth.
Term
unconditioned stimulus
Definition
in classical conditioning a stimulus that unconditionally-naturally and automatically-triggers a response.
Term
conditioned response (CR)
Definition
in classical conditioning, the learned response to a previously neutral (but now conditioned) stimulus.
Term
conditioned stimulus
Definition
in classical conditioning an originally irrelevant stimulus that, after association with an unconditioned stimulus (US), comes to trigger a condition response.
Term
acquisition
Definition
in classical conditioning the initial stage, when one links a neutral stimulus and an unconditioned stimulus so that the neutral stimulus begins triggering the conditioned response . In operant conditioning, the strengthening of a reinforced response.
Term
higher- order conditioning
Definition
a procedure in which the conditioned stimulus in one conditioning experience is paired with a new neutral stimulus, creating a second, often weaker, conditioned stimulus. For example, an animal that has learned that a tone predicts food might then learn that light predicts the tone and begin responding to the light alone.
Term
extinction
Definition
the diminishing of a conditioned response occurs in classical conditioning when an unconditioned stimulus does not follow a conditioned stimulus. occurs in operant conditioning when a response is no longer reinforced.
Term
spontaneous recovery
Definition
the reappearance, after a pause, of an extinguished conditioned response.
Term
generalization
Definition
the tendency, once a response has been conditioned, for stimuli similar to the conditioned stimulus to elicit similar responses.
Term
discrimination
Definition
in classical conditioning the learned ability to distinguish between a conditioned stimulus and stimuli that do not signal an unconditioned stimulus.
Term
associative learning
Definition
learning that certain events occur together. The events may be two stimuli (classical conditioning) or a response and its consequences
Term
respondent behavior
Definition
behavior that occurs as an automatic response to some stimulus
Term
operant conditionig
Definition
a type of learning in which behavior is strengthened if followed by a reinforcer or diminished if followed by a punisher.
Term
operant behavior
Definition
behavior that operates on the environment, producing consequences.
Term
law of effect
Definition
Thorndikes principle that behaviors followed by favorable consequences become more likely, and that behaviors followed by unfavorable consequences become less likely.
Term
operant chamber
Definition
in operant conditioning research, a chamber (skinner box) containing a bar or key that an animal can manipulate to obtain a food or water reinforcer; attached devices record the animals rate of bar pressing or key pressing.
Term
learning
Definition
a relatively permanent change in an organisms behavior due to experience.
Term
shaping
Definition
an operant conditioning procedure in which reinforces guide behavior toward closer and closer approximations of the desired behavior.
Term
reinforcer
Definition
in operant conditioning, any event that strenghens the bavior it follows
Term
positive reinforcement
Definition
increasing behaviors by presenting positive stimuli, such as food. A positive reinforcer is any stimulus that, when presented after a response, strengthens the response.
Term
negative reinforcement
Definition
increasing behaviors by stopping or reducing negative stimuli, such as shock. A negative reinforcer is any stimulus that when removed after a response, strengthens the response. (NOT PUNISHMENT)
Term
Primary reinforcer
Definition
an innately reinforcing stimulus, such as one that satisfies a biological need.
Term
conditioned reinforcer
Definition
a stimulus that gains its reinforcing power through its association with a primary reinforcer; also known as secondary reinforcer.
Term
continuous reinforcement
Definition
reinforcing the desired response every time it occurs
Term
partial(intermittent) reinforcement
Definition
reinforcing a response only part of the time. results in slower acquisition of a response but much greater resistance to extinction than does continuous reinforcement.
Term
variable ratio schedule
Definition
in operant conditioning a reinforcement schedule that reinforces a response after an unpredicatble number of responses.
Term
fixed ratio schedule
Definition
in operant conditioning a reinforcement schedule that reinforces a response only after a specified number of responses
Term
fixed interval schedule
Definition
in operant conditioning, a reinforcement schedule that reinforces only after a specified time has elapsed/
Term
variable interval schedule
Definition
in operant conditioning a reinforcement schedule that reinforces at unpredictable time intervals.
Term
punishment
Definition
an event that decreases the behavior that follows
Term
cognitive map
Definition
a mental representation of the layout of ones environment. for example, after exploring a maze, rats act as if they have learned a cognitive map of it.
Term
latent learning
Definition
learning that occurs but is not apparent until there is an incentive to demonstrate it.
Term
intrinsic motivation
Definition
a desire to perform a behavior effectively for its own sake.
Term
extrinsic motivation
Definition
a desire to perform a behavior to recieve promised rewards or avoid threatened punishment.
Term
observational learning
Definition
learning by observing others
Term
modeling
Definition
the process of observing and imitating a specific behavior.
Term
mirror neurons
Definition
frontal lobe neurons that fire when performing certain actions or when observing another doing so. the brains mirroring of another's action my enable imitation and empathy.
Term
prosocial behavior
Definition
positive, constructive, helpful behavior. the opposite of antisocial.
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