Lect+7+02_09_10 - Classical Conditioning (2-9-10) overview...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
Classical Conditioning (2-9-10)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
overview ± Ch 4 ² What Makes Effective Conditioned and Unconditioned Stimuli? ± Initial Responses to the Stimuli ± Novelty of Conditioned and Unconditioned Stimuli ± CS and US Intensity and Salience ± CS- US Relevance, or Belongingness ± Learning Without an Unconditioned Stimulus ² What Determines the Nature of the Conditioned Response? ± The Stimulus- Substitution Model ± Learning and Homeostasis: A Special Case of Stimulus Substitution ± The CS as a Determinant of the Form of the ± The CS as a Determinant of the Form of the CR ± Conditioned Responding and Behavior Systems ± S-R versus S-S Learning
Background image of page 2
Classical Conditioning: Mechanisms #4 ± What Makes Effective Conditioned and Unconditioned Stimuli? ² Initial Responses to the Stimuli ² Novelty of Conditioned and Unconditioned Stimuli ² CS and US Intensity and Salience ² CS- US Relevance, or Belongingness ² Learning Without an Unconditioned Stimulus
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Conditioned inhibition versus higher order conditioning ± What are the differences? ² End behavior- ± Conditioned inhibition ² CR is reduced or suppressed ± Higher-order conditioning ² CR is similar to 1st order conditioning
Background image of page 4
Conditioned inhibition versus higher order conditioning ± What are the differences? ² Timing between CS-US presentation
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Standard Procedure for Conditioned Inhibition ± CS+ -> US ± [Cs+, Cs-] US ± CS- acquires inhibitory properties.
Background image of page 6
Standard Procedure for Conditioned Inhibition ± The same CS+ is presented with a second CS- . ² compound CS . ± simultaneous presentation of two or more CSs ± US does not occur. ± As a result of this procedure, the CS- becomes a “conditioned inhibitor.”
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Higher-Order Conditioning CStone CSlight CStone USfood
Background image of page 8
Sensory Preconditioning ± Conditioning apparently takes place simply by the pairing of two stimuli, neither of which initially elicits a UR
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Sensory Preconditioning
Background image of page 10
Negative CS-US Contingency or Correlation ± a single CS predicts a reduced probability of a US ± CS is always followed by period without US
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Measuring Conditioned Inhibition ± Compound Stimulus, or Summation Test. ± The Retardation-of-Acquistion Test.
Background image of page 12
Conditioned Inhibition ± Conditioned Inhibitor (CS-): A CS that prevents the occurrence of a CR ± Example: ² 1 st Phase ² US (Food) -> UR (Salivation) ² CS (Bell) -> CR (Salivation) ² Bell = Excitatory CS (CS+) ² 2 nd Phase Random Trials where : Light (CS-) + Bell (CS+) and no food 2 or more CS often called compound CS Type 1: Bell (CS) -> Salivation (CR) 2 nd phase: 2 types of trials
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Conditioned Inhibition ± Trial 2 eventually results in little or no salivation, while Trial 1 continues to elicit CR ± Is compound CS as an inhibitory unit or is only the light a CS-?
Background image of page 14
Compound Stimulus or Summation Test ± Summation Test ² New CS+ developed that elicits salivation ² The original CS- (light) then paired with new CS+ ² Results: The CS- reduced or eliminated the CR of new CS+, even though the 2 never paired together ± Conditioned Inhibitor: Reliably predicts the absence of the US in context where the US is typically expected
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 16
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 101

Lect+7+02_09_10 - Classical Conditioning (2-9-10) overview...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online