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The visual system is the physiological basis of visual perception (the ability to detect and process light).The system detects, transduces and interprets information concerning light within the visible range to construct an image and build a mental model of the surrounding environment.
The eye-contact effect is a psychological phenomenon in human selective attention and cognition.It is the effect that the perception of eye contact with another human face has on certain mechanisms in the brain. [1]
A neural pathway connects one part of the nervous system to another using bundles of axons called tracts. The optic tract that extends from the optic nerve is an example of a neural pathway because it connects the eye to the brain; additional pathways within the brain connect to the visual cortex.
In addition, the LGN receives many strong feedback connections from the primary visual cortex. [1] In humans as well as other mammals, the two strongest pathways linking the eye to the brain are those projecting to the dorsal part of the LGN in the thalamus, and to the superior colliculus. [2]
In higher organisms, the eye is a complex optical system that collects light from the surrounding environment, regulates its intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through neural pathways ...
In the monkey brain, this area receives strong feedforward connections from the primary visual cortex (V1) and sends strong projections to other secondary visual cortices (V3, V4, and V5). [39] [40] Most of the neurons of this area in primates are tuned to simple visual characteristics such as orientation, spatial frequency, size, color, and shape.
The skull bone behind Hermansen’s right eye was gone. In its place was a hole, allowing her brain to press against the eye, which explained the pulsating, said Dr. Netanel Ben-Shalom, a ...
In neuroanatomy, the optic tract (from Latin tractus opticus) is a part of the visual system in the brain.It is a continuation of the optic nerve that relays information from the optic chiasm to the ipsilateral lateral geniculate nucleus (LGN), pretectal nuclei, and superior colliculus.
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