Retinal input

Retinal input

Visual input is initially encoded in the retina as a two-dimensional distribution of light intensity, expressed as a function of position, wavelength and time. This retinal image is transferred to the visual cortex where primary sensory cues and, later, inferred attributes, are eventually computed in the process of actualising our perceptions. Parallel processing strategies are employed from the outset to overcome the constraints of the individual ganglion cell’s limited bandwidth and anatomical bottlenecks as data approaches the optic nerves that connect each eye to the visual cortex.

References: DeYoe and Van Essen (1988): https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2771435/