Question 1

Discuss the evidence suggesting that the hippocampus is important for generalization.

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Question 2

What is combinatorial explosion? Why is it a problem in categorization learning?

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Question 3

Suppose a dog is trained to salivate in response to a bell that lasts for three seconds. Draw a generalization gradient that the dog might experience in response to bells of other durations.

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Question 4

Suppose researchers train a rat to press a bar when a 1000 Hz tone sounds and a person trains the same rat NOT to press the bar when a 1200 Hz tone sounds. Finally, they test for generalization using the following sounds: (a) 900 Hz, (b) 1000 Hz, (c) 1100 Hz, and (d) 1200 Hz. Draw a graph showing the excitatory and inhibitory gradients and the summation curve showing the peak shift.

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Question 5

Give an example from everyday life that demonstrates acquired equivalence.

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Question 6

Explain how stereotyping is related to the concept of generalization.

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Question 7

Describe the role of the nucleus basalis in generalization.

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Question 8

Discuss the evidence demonstrating cortical plasticity in A1. Explain what the results imply about the relationship between the stimulus and the consequences.

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Question 9

Describe the specific ways that generalization is affected in people with schizophrenia.

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Question 10

Draw a generalization gradient that would occur for a yellow light before discrimination training. On the same graph, draw a generalization gradient that would occur for a yellow light after discrimination training.

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Question 11

Suppose researchers train a dog to salivate in response to a 1000 Hz tone. They then test for generalization by presenting the 1000 Hz tone as well as tones of other pitches a distributed representation to the original tone and at least one of the other tones.

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Question 12

Describe how one could use discrimination training to teach a rat to distinguish between a red light and a green light.

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Question 13

Describe an example of discrimination (as it relates to the study of learning) in everyday life.

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Question 14

Explain why a distributed representation provides a better account of the generalization gradient than a discrete component representation does.

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Question 15

Describe the procedure used to study sensory preconditioning. Why is sensory preconditioning an important aspect of learning?

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Question 16

Describe a network model that can account for the phenomenon of negative patterning.

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Question 17

Describe an example of generalization in everyday life.

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Quiz 6: Generalization, Discrimination Learning, and Concept Formation