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:

Indus Civilization

An ancient civilization that flourished in the Indus River valley (present-day Pakistan and northwest India), known for its advanced urban planning, architecture, and commerce.

Pakistan

A South Asian country known for its diverse cultures, languages, and landscapes, from the Himalayan peaks to the Arabian Sea coastline.

Hindu God

A deity part of the extensive pantheon in Hinduism, each representing different aspects of life, nature, and the cosmos.

Badami

An historic town in Karnataka, India, known for its rock cut structural temples that date back to the 6th century, associated with the Early Chalukyan architecture.