lecture 8 Flashcards
experiment procedure examining whether previous CONDITIONING with a particular CS mattes
stage 1- a CS (CS-A) is paired with a US using an effective procedure-delay conditioning
stage 2- a CS-A and another CS-B is presented together with the US in stage 1
does using CS-A in stage 1 have an effect on whether CR’S to CS-B are acquired in stage 2
after training a test is given that consists of CS-B presented alone
CS-B fails to elicit a CR at test
prior experience of CS-A - US relationship
BlOCKS subsequent learning of the CS-B-US relationship when CS-A is present
PREVIOUS CONDITIONING MATTERS
experiment procedure examine whether previous EXPERIENCE with the stimulus used as a CS matter
stage 1 - a conditional stimulus (CS) is presented on its own (no US)
STAGE 2- follows stage 1 and involves using the stimulus in stage 1 as the CS
Does using the stimulus in stage 1 have an effect on whether CR’S are acquired in stage 2 after training
after training a test is given that consists of CS presented alone
control group - not pre-exposed to CS
experimental group exposed to
stage 1 - CS only
stage 2 - CS+US
test - CS
control group exposed to
stage 1 - no stimuli
stage 2- CS+US
test-CS
results of experiment procedure examine whether previous EXPERIENCE with the stimulus used as a CS matter
CS fails to elicit a CR at test
control group results
CS elicits a CR
US must come
after the CS in order for CR to be acquired
not too soon or too long after
if a stimulus is FAMILIAR it is
in effective when used as a CS in a conditioning procedure
paired is not sufficient
US-UR reflex is a
pre existing innate reflex
CS-CR reflex is
an acquired reflex
but its not generally true
sufficiency
if the US and CS are paired then a CR will be acquired - nothing else is needed other than the pairing
different ways in which the CS and US can be presented together
simultaneous
trace
delay
backward
simultaneous conditioning
CS and US is presented at the SAME time
trace conditioning
unconditioned stimulus (US) and conditioned stimulus (CS) are presented separately with an interval of time in between CS ends before the US comes on, so that only a "trace" of the CS is available
delay conditioning
CS after US by more than the optimal interval, but continues to overlap US in time.
CS precedes the unconditioned stimulus by a significant time period
Backward conditioning
US first then CS
ineffective method of conditioning - doesn’t allow for clear association
interval - no stimulus
which procedure is the most effective
delay conditioning
simultaneous condtioing is
ineffective
backward conditioning is
ineffective for any length of delay
forward condition is also known as
delay conditioning
in forward conditioning the CS comes
first and signals that a US will toon occur
trainee learns that CS signals the US is coming
