Difference between revisions of "Human brain"
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| − | + | A '''brain''' is an organ that processes information. In humans, [[eye]]s connect to it through optic nerves. Perception happens using a brain. (There is consciousness in a brain.) | |
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| + | A [[BCI]] can connect to a brain. | ||
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| + | It can be interfaced with a computer system. | ||
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| + | A brain has a [[visual cortex]] at the back. | ||
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| + | ==Connecting to the brain== | ||
| + | '''Connecting to the brain''' is the process of connecting a computer system to a brain. | ||
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| + | It can be done using direct neural connection, or by going through the five senses. | ||
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| + | Direct connection, such as neuralink, can read data and theoretically write data. Going through the senses using a visual display can write data much faster. | ||
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| + | ==Perception== | ||
| + | A '''perceptual space''' is a set of perceptions that a human can have. A human perceptual space is a set of all possible perceptions that can happen in a human brain. | ||
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| + | The human perceptual space is largely visual. About eighty to eighty-five percent of our perception, learning, cognition, and activities are mediated through vision.<ref name="k324">{{cite web | title=Vision Is Our Dominant Sense | website=BrainLine | date=2008-11-06 | url=https://www.brainline.org/article/vision-our-dominant-sense | access-date=2024-08-12}}</ref> Almost the entire lower half of the cerebral cortex is for processing visual information.<ref name="p698">{{cite web | title=Visual Processing: Cortical Pathways (Section 2, Chapter 15) Neuroscience Online: An Electronic Textbook for the Neurosciences | website=Department of Neurobiology and Anatomy | date=2020-10-07 | url=https://nba.uth.tmc.edu/neuroscience/m/s2/chapter15.html | access-date=2024-08-13}}</ref> | ||
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| + | Related concepts are retinotopic mapping and the cortical homunculus. | ||
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| + | [[File:Retinotopic English.jpeg|thumb|250px|right|Retinotopic maps]] | ||
| + | '''Retinotopy''' is the mapping of visual input from the [[retina]] to neurons.<ref>https://en.wikipedia.org/wiki/Retinotopy</ref> | ||
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| + | '''Cortical magnification''' is a measure of how many neurons in an area of the [[visual cortex]] are responsible for processing a stimulus of a given size.<ref>https://en.wikipedia.org/wiki/Cortical_magnification</ref> | ||
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| + | ==See also== | ||
| + | * [[Visual space]] | ||
==References== | ==References== | ||
<references /> | <references /> | ||
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| + | [[Category:Human brain]] | ||
| + | [[Category:Physiology]] | ||
Latest revision as of 18:18, 31 October 2024
A brain is an organ that processes information. In humans, eyes connect to it through optic nerves. Perception happens using a brain. (There is consciousness in a brain.)
A BCI can connect to a brain.
It can be interfaced with a computer system.
A brain has a visual cortex at the back.
Connecting to the brainEdit
Connecting to the brain is the process of connecting a computer system to a brain.
It can be done using direct neural connection, or by going through the five senses.
Direct connection, such as neuralink, can read data and theoretically write data. Going through the senses using a visual display can write data much faster.
PerceptionEdit
A perceptual space is a set of perceptions that a human can have. A human perceptual space is a set of all possible perceptions that can happen in a human brain.
The human perceptual space is largely visual. About eighty to eighty-five percent of our perception, learning, cognition, and activities are mediated through vision.[1] Almost the entire lower half of the cerebral cortex is for processing visual information.[2]
Related concepts are retinotopic mapping and the cortical homunculus.
Retinotopy is the mapping of visual input from the retina to neurons.[3]
Cortical magnification is a measure of how many neurons in an area of the visual cortex are responsible for processing a stimulus of a given size.[4]
See alsoEdit
ReferencesEdit
- ↑ "Vision Is Our Dominant Sense". 2008-11-06. https://www.brainline.org/article/vision-our-dominant-sense.
- ↑ "Visual Processing: Cortical Pathways (Section 2, Chapter 15) Neuroscience Online: An Electronic Textbook for the Neurosciences". 2020-10-07. https://nba.uth.tmc.edu/neuroscience/m/s2/chapter15.html.
- ↑ https://en.wikipedia.org/wiki/Retinotopy
- ↑ https://en.wikipedia.org/wiki/Cortical_magnification