Receptive Fields Have a Center and Concentric Surround That Stimulate

question 248

Multiple Choice

Receptive fields have a center and concentric surround that stimulate the firing of action potentials in opposition to one another.Given this arrangement, the response and pattern of firing would you expect from an off-center retinal ganglion cell when a spot of light hits the center of its receptive field is that the ganglion cell would

• A) be excited and would decrease its firing rate.
• B) be inhibited and would increase its firing rate.
• C) increase its firing rate, even though the photoreceptors would be inhibited.
• D) be excited and its firing rate would increase.
• E) be inhibited, and its firing rate would decrease.

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Definitions:

Slope

In mathematics, the slope is the measure of the steepness, incline, or grade of a line, calculated as the ratio of the vertical change to the horizontal change between two points on the line.

Point A

In the context of graphs or models, a specific point that might denote a specific situation or condition in an analysis or illustration.

Point D

A specific point on a graph or in a dataset, often used in economics to denote either an equilibrium point or a point of interest in a graphical analysis.

Normative Economics

A branch of economics that expresses value judgments about economic fairness or what the economy ought to be like.