acquisition
stage of classical conditioning in which a conditioned response is trained
blocking
when an acquired association between an unconditioned stimulus and a conditioned stimulus inhibits the formation of new associations between the unconditioned stimulus and other stimuli
classical conditioning
learning an association between paired events, specifically learning that occurs when a neutral stimulus is paired with a stimulus that normally elicits an involuntary, automatic response until the neutral stimulus elicits the response on its own
conditioned response (CR)
response that is elicited by a conditioned stimulus
conditioned stimulus (CS)
neutral stimulus that acquires the power to elicit an involuntary response by being repeatedly paired with a stimulus that normally elicits the response
discrimination
when the brain differentiates between stimuli that do and do not signal the onset of the unconditioned stimulus
extinction
conditioned stimulus is presented alone repeatedly—without the unconditioned stimulus—until the conditioned stimulus loses its power to elicit the conditioned response
fixed-interval reinforcement
schedule of reinforcement in which a reinforcer is delivered following the first correct response that occurs after a fixed period of time
fixed-ratio reinforcement
schedule of reinforcement in which a reinforcer is delivered after a fixed number of correct responses occurs
generalization
process in which stimuli similar to a conditioned stimulus elicit conditioned responses
higher-order conditioning
when a conditioned stimulus is used in place of an unconditioned stimulus to build an association between another neutral stimulus and the conditioned response
law of effect
law that states that behaviors that are followed by favorable consequences become more likely, whereas those that are followed by unfavorable consequences become less likely
learning
change in behavior as a result of experience
mirror neuron
nerve cell that fires both when performing an action or when observing another perform that same action
modeling
process of demonstrating a behavior so that another can learn it
negative punishment
procedure for decreasing behavior by removing a desired stimulus following the behavior
negative reinforcement
procedure for increasing behavior by removing an undesired stimulus following the behavior
observational learning
learning that occurs by observing the behavior of others
operant conditioning
learning process in which voluntary behavior is shaped by its consequences
overshadowing
an association is more likely to be formed to a highly prominent neutral stimulus than to a weaker neutral stimulus that may also be present
positive punishment
when an aversive stimulus follows behavior and decreases the frequency of the behavior
positive reinforcement
when a desired stimulus follows behavior and increases the frequency of the behavior
shaping
reinforcing small steps that comprise or lead to a complex behavior
taste aversion
intense dislike of a particular food or liquid, often forming after a single exposure to a novel taste
unconditioned response (UR)
involuntary reaction that an unconditioned stimulus normally elicits
unconditioned stimulus (US)
stimulus that normally elicits an involuntary response
variable-interval reinforcement
schedule of partial reinforcement in which a reinforcer is delivered after a varying period of time has elapsed
variable-ratio reinforcement
schedule of partial reinforcement in which a reinforcer is delivered after a varying number of required responses occurs