Lecture 3: Role Of Descriminative Stimulus Flashcards Preview

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Flashcards in Lecture 3: Role Of Descriminative Stimulus Deck (26):
1

Responding acquired with positive reinforcement persists when non-reinforced to a greater extent than a conditional reinforcement. The less reliably a response is reinforced, the more persistent it is during extinction. The participants that leaves the earliest are the one being reinforced.

Partial reinforcement extinction effect

2

You talk louder than normal
E.g autism intervention training.

Discriminative stimulus

3

Rft is removed. established response declines. Seen in both instrumental and classical conditioning. Omission works the same.

Extinction

4

What does CRF vs extinction serves as?

Distinguishable markers

5

What is facilitated by the different contexts?

New learning

6

What are the evidence for the original association re-emerges under some circumstances?

1. Spontaneous recovery
2. Reinstatement
3. Rapid re-acquisition
4. Renewal

7

What plays a critical role in extinction

Context

8

What controls behavior

Discriminative stimuli

9

How is stimulus control acquired?

Through differential reinforcement

10

What happens if RFT is delivered in the presence if a stimulus (s+)?

Learning tends to generalize to similar stimuli. i.e. Generalization gradient

11

What does discriminating between stimuli mean?

Behaving differently towards them

12

When is discrimination applicable

1. The stimuli are easy to tell apart (colour)

2. The stimuli are confusable (the difference between then is not obvious)

13

When would generalization fail to discriminate?

1. Organism cannot discriminate
2. Organism doesn't discriminate

14

How can discrimination be learned?

Through reinforcement

15

What is critical for generalization and discrimination in similar situations?

The content of what is learned

16

What is the evidence of learning the relationship between two stimuli

Transposition

17

What are the 2 theories of Spence?

1. Excitatory conditioning to S+
2. Inhibitory conditioning to S-

18

What generalizes S+ to similar values

Excitatory conditioning

19

What generalizes S- to similar values?

Inhibitory conditioning

20

What conditioning explains transposition?

Feature based conditioning

21

What theory predicts that rational choices will have cleat physical limitations?

Spence's theory; gradient summation theory of discriminative learning

22

What can animals learn to discriminate?

Complex stimuli; discrimination and categorization

23

What is a prototype?

A representation of the typical category member

24

What features are most strongly reinforced that becomes the best discriminative stimuli?

The most common features

25

- Reinforcement is removed
- established response is declined
- seen in both instrumental and classical conditioning
- omission works the same

Extinction

26

Stimulus that signals that a response is appropriate

Discriminative stimulus