A receptor array in the Limulus is connected by the lateral plexus. Receptor "A" is located 5 receptors to the left of Receptor "B." What stimulation will result in the greatest firing rate recorded from "A"
A) stimulate A with 10 units of illumination
B) stimulate A with 10 units of illumination and stimulate B with 10 units
C) stimulate A with 10 units of illumination and stimulate B with 20 units
D) stimulate A with 5 units of illumination and stimulate B with 20 units

Question

Quizplus · Accepted Answer

Stimulating receptor "A" with 10 units of illumination without stimulating "B" will result in the greatest firing rate from "A" because stimulating "B" would cause lateral inhibition, reducing "A"'s firing rate.

A Receptor Array in the Limulus Is Connected by the Lateral