visual capacities Flashcards

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1
Q

how is the visual cortex laid out

A

with adjacent genetically determined column of cells which receive an input from the same area of the retina of both eyes

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2
Q

what is a critical period

A

a period of time during early development where the nervous system must obtain specific experiences to develop properly to ensure synapses are strengthened and unstimulated synapses are removed.

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3
Q

what is the critical period in visual development

A

the further visual development after birth were the eye needs to be correctly stimulated by light during this critical development period for the correct synaptic connection to be made

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4
Q

what happens when one eye is deprived of light

A
  • the axons from that eye will not be stimulated
  • so in the area of the visual context where neurone’s from both eyes overlap, only synapses of axons receiving light will be stimulated to release neurotransmitter
  • causing the synapses from the light deprived eye will be weakened and eventually lost
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5
Q

what is visual perception

A

the ability to interpret information from visible light reaching the eye

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