salivary conditioning

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Classical/Pavlovian Conditioning Foundations

I. Introduction

-review of basic procedure and terminology

II. Common Experimental Preparations

-salivary conditioning

-eyelid conditioning

-fear

-autoshaping

-taste aversion

III. Temporal Arrangement of CS/US

-excitatory versus inhibitory

-simultaneous, delayed, trace, backwards

IV. Necessary and sufficient conditions for learning

-control procedures

-contiguity versus contingency

-Rescorla settles things

V. Inhibition

-procedures, measures

Ivan Pavlov (1849-1936)

Classical conditioning procedure

S

R

Classical conditioning procedure

US

UR

Classical conditioning procedure

S + US

R

UR

Classical conditioning procedure

CS + US

CR UR

Stimulus Generalization, stimulus discrimination, extinction

Extinction: how we know it isn’t forgetting

1) Spontaneous Recovery

2) Rapid Reaquisition

3) Disinhibition

Higher Order Learning

II. Common experimental preparations: a. Salivary conditioning b. Eyelid conditioning c. Fear conditioning

-measures: HR, GSR, CER

“conditioned suppression”

“suppression ratio”

CSresponses

= -----------------------------

CSresponses+ Pre-CSresponses

So,

low

numbers means

more

learning has taken place.

If SR = 0, good learning. If SR = .5, no fear is learned

II. Common experimental preparations: a. Salivary conditioning b. Eyelid conditioning c. Fear conditioning d. Sign-tracking, or autoshaping

How do we know it isn’t operant conditioning?

Long-box experiment:

II. Common experimental preparations: a. Salivary conditioning b. Eyelid conditioning c. Fear conditioning d. Sign-tracking, or autoshaping e. Taste-aversion learning

III. CS-US arrangement a. simultaneous b. delayed c. trace d. backward

IV. Necessary and sufficient conditions for learning a. Control procedures b. Contiguity versus contingency

Rescorla’s work:

Two factors are in play:

P(US/CS) (likelihood that when CS appears, US does as well)

P(US/no CS)

(likelihood that the US can appear alone)

If first probability is greater than the second, then excitatory conditioning takes place

If second probability is greater than the first, then inhibitory conditioning takes place

If both probabilities are equal, then NO LEARNING takes place

(exception: sauce béarnaise effect)

V. Inhibition a. procedures b. couldn’t this just be a form of extinction?

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