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The human visual system is capable of seeing light in a very narrow range of frequencies on the electromagnetic spectrum. On the short end, 400 nm wavelengths are observed as violet, while on the long end, 700 nm wavelengths are red.
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 information from the eye is carried by the axons of the retinal ganglion cells (the 3° visual afferent) to the midbrain and diencephalon. This chapter will provide more information about visual pathway organization and the visual processing that occurs within the brain.
The visual system includes the eye and retina, the optic nerves, and the visual pathways within the brain, where multiple visual centers process information about different aspects (shape and form, color, motion) of visual stimuli.
6.1.1 Describe the region of the electromagnetic spectrum that is perceived by our visual system, and the relative energy of photons at long and short wavelengths. 6.1.2 Describe the major parts of the eye and their role in focusing light to create a clear image. In this section, we will meet the range of the electromagnetic energy spectrum ...
29 paź 2024 · Area 17, the striate area, is the primary visual centre in the sense that, in primates at any rate, all of the geniculate fibres project onto it and none projects onto another region of the cortex.
23 sty 2023 · The human visual system is capable of seeing light in a very narrow range of frequencies on the electromagnetic spectrum. On the short end, 400 nm wavelengths are observed as violet, while on the long end, 700 nm wavelengths are red.
