Compared with the Brains of Old Rats That Live in Standard

question 31

Multiple Choice

Compared with the brains of old rats that live in standard cages with little stimulation,the brains of old rats that live in a complex toy-filled environment ___________.

• A)have more extensive dendritic branching of neurons.
• B)have the less extensive dendritic branching of neurons.
• C)have the same amount of dendritic branching of neurons.

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Definitions:

Opponent-process Theory

A model in psychology and neurology describing how color perception is governed by the functioning of antagonistic neural networks.

Red-green System

The red-green system refers to one of the color vision subsystems in the eye, responsible for detecting wavelengths of light associated with red and green colors, integral to human color vision.

Trichromatic Theory

A theory of color vision positing that the human eye has three types of receptors with different sensitivities to light wavelengths, corresponding to red, green, and blue colors.

Medium-wavelength Cones

Photoreceptor cells in the retina responsible for mediating color vision in moderate to bright light conditions, typically sensitive to wavelengths perceived as green.