Using Single-Cell Recording,a Researcher Isolates a Neuron in the Motor

question 30

Multiple Choice

Using single-cell recording,a researcher isolates a neuron in the motor cortex of a monkey that is extremely active when the monkey moves its arm from left to right.In subsequent trials,the animal is required to move its arm from the starting to the ending locations diagrammed here.

Which,if any,of these additional trials will also increase activity in this neuron?

• A)C only
• B)A and B
• C)A,B,and D
• D)D only

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Definitions:

Unconditioned Response

An automatic, innate reaction to a stimulus that occurs without prior conditioning or learning.

Negatively Reinforced

A behavior strengthened because a negative condition is removed or avoided as a consequence of the behavior.

Positively Punished

The addition of an unpleasant stimulus in response to a behavior, resulting in a decrease in the likelihood of that behavior being repeated.

Negatively Punished

A term in behavioral psychology referring to the decrease in the frequency of a behavior due to the removal of a pleasant stimulus following the behavior.