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Sight is controlled by which part of the brain?

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Which part of the brain controls sight?
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2 ANSWERS
Lyelle Palmer, worked at Minnesota Learning Resource Center, Mpls
Answered Feb 12
Which part of the brain controls sight? Multiple areas are involved because vision is a complex combination of areas and functions that work together to produce perception above and below the limen threshold. Perceptive vision is registered/received in the occipital lobe neurons for orientations of lines (See the work of Hubel and Wiesel). Color perception is accruing explanations but has long been mysterious. Coordination of the eyes is controlled in the brainstem and intentional movement is controlled by the motor strip in the frontal cortex and automatic control is in the pons/midbrain. So, what part of the question are you interested in knowing? Vision is complex.
The Primary Visual Cortex:

The red bit.
Grain of Salt
Popular understanding of the brain holds that it consists of centers for each type of stimuli. There are definitely areas associated with certain types of processing, but they should not be considered isolated centers that unpack data independently. Centers should be re-conceptualized as hubs for neural circuits. Most of the brain is loosely classified as "association areas", which means that most of the brain is available for general processing.



Anatomy
The thalamus intercepts all sensory input, except for olfaction, and refers them to specialized areas of the brain

Visuals - Occipital Cortex
Audition - Angular Gyrus and Wernicke's Area
Tactile - Parietal Lobes
Gustatory - Gustatory Cortex

Olfaction, or smell, is the onion in the petunia patch. Areas associated with olfaction are thought to include the occipitotemporal lobe, Insula, and Piriform Cortex. Olfaction is odd because it is the only one of the classic 5 senses that does not have a pathway through the thalamus. The areas I listed actually handle the cascade of activity when a smell is recognized (memory, emotion, hunger, etc). There is an "olfactory brain" that actually processes the stimuli.

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