learning 2- concept learning

Question 1

definition of discriminate and generalize

Answer 1

dis- only respond when appropriate

gen- respond to both

Question 2

what is peak shift

Answer 2

when the discrimination is between 2 stims on the same dimension it will move even further from the S-

Question 3

Amount of responding in peak shift depends on

Answer 3

the difference bw the inhibitory and excitatory responses

Question 4

What is a perceptual concept

Answer 4

trees, birds, humans

long and thin= screwdriver, pencil, carrot

Question 5

what is a relational concept

Answer 5

same as

-tools= screwdriver, hammer, saw

Question 6

Exemplar effect

Answer 6

do better at generalizing features on repeated images

Question 7

What is feature learning

Answer 7

all features shared by only the correct stim are learned

eg. for something to count as a chair it needs 4 legs

Question 8

What is exemplar learning

Answer 8

Each correct stim is learned independently

generalization of response

Question 9

Prototype theory

Answer 9

subjects generalize from all the rewarded stimes and extract a prototype (average member)
-respond to novel stim by how well they match

Question 10

2 predictions of prototype theory

Answer 10

• prototype itself should be learned fast

- all members of the category should change value together

Question 11

when is it best to use memorization

Answer 11

when there are only a few stims

when lots might be easier to learn the category

Question 12

What is object permenence

Answer 12

concept of an object continuing to exist when it is no longer visable