Classical Conditioning (Exam 1) Flashcards
How did Pavlov do it?
A form of learning in which an animal acquires the expectation that a given stimulus predicts a specific upcoming important event
Unconditioned Stimulus (US)
a cue that has some biological significance and that, in the absence of prior training, naturally evokes a response.
Unconditioned Response (UR)
the naturally occurring response to an unconditioned stimulus
Conditioned Stimulus (CS)
a cut that is paired with an unconditioned stimulus (US) and comes to elicit a conditioned response (CR).
Conditioned Response (CR)
the trained response to a conditioned stimulus (CS) in anticipation of the unconditioned stimulus (US) that the CS predicts.
Appetitive Conditioning
when the unconditioned stimulus (US) is a desirable event. (positive, like food or sex)
Aversive Conditioning
Conditioning on which the unconditioned stimulus (US) is a disagreeable event (such as shock or puff of air to the eye, negative)
Conditioned Emotional Response (CER)
a process by which emotion is learned in responses to a stimulus
Mammalian conditioning of Motor reflexes
Clark Hull (mathematical psychologists)
Eye blink conditioning
classical conditioning procedure in which the US is an air puff to the eye and the unconditioned responses are eye blinks.
Rabbit eye blink
A–>tone =neutral, B–>tone (CS)+air puff=eye blink (UR), C–>tone (CS)=eye blink(CR)
Compensatory responses
an automatic response that is opposite to the effect of a substance (experiment: dogs with adrenaline shots showed increased heart rate)
Tolerance
decrease in reaction to a drug such that larger doses are required to achieve the same effect
Homeostasis
the tendency of the body (including the brain) to gravitate toward a state of equilibrium or balance (readily preparing for the negative moment in your environment)
Substance use
conditioned compensatory responses —-> tolerance
event cues leading to the consumption of alcohol
What can be CS or US?
Experimentation unconditioned stimuli are biologically significant events
*Appetitive/Pleasurable = food
*Aversive=shock or puff to the eye
Conditioned stimuli could be any cue on the environment
* stimulus cues are not inherently CS or US, but are defined by their role in the learning situation
Extinction
the process of reducing a learned response to a stimulus by ceasing the pair that stimulus with another, previously associated stimulus
Compound conditioning
conditioning in which two or more cues are present together, usually simultaneously, forming a compound CS.
Compound stimulus paradigm
Overshadowing
an effect seen in compound conditioning when a more salient cue within a compound requires more association strength than does the less salient cue and is thus more strongly associated with the US.
Example: Loud tone presented with a dim light (the loud tone overshadows the response to the dim light)
Blocking
a two-phase training paradigm in which prior conditioning with one cue (CS1–>CS2) blocks later learning of a second cue when the two are paired together in the second phase of training (CS1+CS2=US)
Prediction error
the difference between what was predicted and what actually occurred.
“I have not failed, I’ve just found 10,000 ways that won’t work.” Thomas Edison
Error-correction learning
learning through trial and error to reduce the discrepancy (error) between what is predicted and what actually occurs.
Associative weight
in the Rescorla-Wagner model of conditioning, a value representing the strength of association between a conditioned stimulus (CS) and an unconditioned stimulus (US)
co-occurring cues
Associative weights and compound conditioning
- Two associative weights in compound conditioning = one for tone, one for light
*Before training, weights = 0.0 - After training the weights will be based on how predictive the stimuli is of the US