Multiple Choice
Correct focusing of the image on the retina in humans is achieved by changing the __________.
46. Sensory Systems
Sensory System
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Some sensory processing occurs within the retina of the vertebrate eye. In one type of retinal processing, a horizontal cell that receives input from a stimulated rod or cone then inhibits surrounding photoreceptors and bipolar cells. This type of processing is called __________.
A
a reflex circuit
B
accommodation
C
neuronal habituation
D
visual sensitization
E
lateral inhibition
Verified step by step guidance1
Begin by understanding the structure of the vertebrate eye, focusing on the retina, which contains photoreceptors (rods and cones) that detect light.
Recognize that horizontal cells are a type of neuron in the retina that connect with multiple photoreceptors and play a role in processing visual information.
Identify the process described: when a horizontal cell receives input from a stimulated photoreceptor, it inhibits the activity of surrounding photoreceptors and bipolar cells.
Understand that this process enhances contrast and sharpens the edges of images, which is crucial for visual perception.
This type of processing is known as 'lateral inhibition,' which is a mechanism that helps in the enhancement of contrast and edge detection in the visual system.
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