Visual coding - In closing: visual receptors

5 important questions on Visual coding - In closing: visual receptors

Law of specific nerve energy

The brain interprets any acitvity of a given sensory neuron as representing the sensory information to which that neuron is tuned

What is the point called at which the axons from the retina exit the eye?

The blindspot

What benefit do people with a larger number of axons from the retina to the brain have?

They show a greater ability to detect brief, faint, or rapidly chaning stimuli
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When light stimulates receptors what happens?

A molecular change in 11-cis-retinal gets triggered, thereby releasing energy and thereby activates second messengers within the cell

Opponent-process theory of color vision

Visual system neurons beyond the receptors themselves respond with an increase in activity to indicate one color of light and a decrease to indicate the opposite color. The three pairs of opposites are red-green, yellow-blue, white-black

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