Lateralization of brain function: Difference between revisions

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Changed "same body side" to "ipsilateral side" to be consistent with "contralateral side."
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Sensory processing: Rewritten first paragraph and vision section to improve specificity and clarity. Added image to help understand lateralization of visual processing.
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===Sensory processing===
The processing of basic sensorySensory information isfor lateralized by being divided intothe left and right sides of the body oris theoften spacelateralized arounddue theto bodynerve fiber [[decussation]].
[[File:Optic processing human brain.jpg|thumb|254x254px|Partial decussation of the left and right visual hemifields.]]
 
In [[visual perception|vision]], about[[Retinal halfganglion thecell|retinal neuronsganglion ofcells]] theundergo partial [[optic nervedecussation]] fromat each eyethe [[Opticoptic chiasm]], where [[Axon|crossaxons]] tofrom projectthe nasal retinas cross to the opposite hemisphere, andwhile about[[Axon|axons]] halffrom dothe nottemporal crossretinas to project to the hemisphereremain on the same[[Ipsilateral|ipsilateral side]].<ref>{{Cite web|url=https://theodora.com/anatomy/the_optic_nerve.html|title = The Optic Nerve - Human Anatomy | work = Photius Coutsoukis }}</ref><ref Thisname=":0">{{Cite organizesbook visual|last=Bear information|first=Mark soF. that|title=Neuroscience: exploring the leftbrain side|last2=Connors of|first2=Barry W. |last3=Paradiso |first3=Michael A. |date=2016 |publisher=Wolters Kluwer |isbn=978-0-7817-7817-6 |edition=4th |___location=Philadelphia}}</ref> As a result, visual input from the left visual fieldhemifield is processed largely by the right hemisphere's [[visual cortex]], ofwhile input from the right hemispherevisual andhemifield viceis versaprocessed forby the rightleft side of thehemisphere's [[visual fieldcortex]].<ref name=":0" />
 
In [[hearing]], about 90% of the neurons of the [[auditory nerve]] from one ear cross to project to the [[auditory cortex]] of the opposite hemisphere.