Binocular Vision
Introduction Humans and other animals with frontally located eyes attain binocular vision from the two retinal images through a series of sensory and motor processes that culminate in the perception…
Developmental Visual Deprivation
The vision of newborn infants is crude. As infants experience the normal visual environment, their vision rapidly improves with different visual capabilities emerging at different ages. Determining the exact timing…
The Effects of Visual Deprivation After Infancy
Introduction Blind individuals tend to show better performance than sighted individuals on a variety of auditory and tactile tasks. This is thought to be due both to compensatory hypertrophy –…
Extrastriate Visual Cortex
What is extrastriate visual cortex? The term “extrastriate” refers to all visually responsive cortex other than primary visual (striate) cortex, and does not receive strong direct projections from the lateral…
Temporal Properties of Vision
Our visual perception arises from the interpretation of light information, which varies in space, wavelength, and time. It is the latter of these attributes that is explored in this chapter….
Development of Vision in Infancy
The limited behavioral repertoire of the infant and the impossibility of instructing the test subject have made it necessary for vision scientists interested in human visual development to adapt the…
Development of Retinogeniculate Projections
The dorsal lateral geniculate nucleus of the thalamus (dLGN) is the gateway through which visual information is transmitted from the retina to the cortex; therefore, visual perception relies on the…
Processing in the Primary Visual Cortex
Overview: The primary visual cortex constructs local image features The visual system provides a description of the location and identification of objects that have survival value to the species. This…
The Visual Field
Introduction Perimetry and visual field testing have been used as diagnostic procedures for evaluation of visual function for nearly 200 years, and a historical review of these techniques may be…
Visual Acuity
Visual acuity is a measure of the keenness of sight. The Egyptians used the ability to distinguish double stars as a measure of visual acuity more than 5000 years ago….
