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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 ...
There are lots of ways to make and view stereograms. The basic concept is to present slightly different images to the two eyes. One way is to superimpose two half images, one in red and one in green. Viewed through red-green glasses, one eye sees the red image and the other eye sees the green image.
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.
If the damage is on the right side, visual signals from the temporal half of the right retina and the nasal half of the left retina are prevented from reaching the cortex: that is, the patient is blind in the left half of the visual field. This is called homonymous hemianopsia.
The optic chiasm is the location in the optic tract where the optic nerve from each eye splits in half, with nasal retinae crossing over and temporal retinae staying on the same side of the optic tract.
23 sty 2023 · Visual information from the fovea, despite being only 1% of the total visual field, takes up about half of all neurons in V1. After processing in V1, visual information is passed along to other cortical areas that contribute to various aspects of visual perception.
14 sie 2024 · Explain the relationship between visual fields and the input pathways from the retina through the cortex. Differentiate the ventral and dorsal streams in terms of their relationship to rod/cone function, cortical anatomy, and ultimate perception. Identify non-thalamic pathways that play a role in visual processing.
