Central Visual Pathways

Effects of visual attention on chromatic and achromatic detection sensitivities.

Visual attention has a significant effect on various visual functions, such as response time, detection and discrimination sensitivity, and color appearance. It has been suggested that visual attention may affect visual functions in the early visual pathways. In this study we examined selective effects of visual attention on sensitivities of the chromatic and achromatic pathways to clarify whet...

The identification of single units in central visual pathways.

Compromised Integrity of Central Visual Pathways in Patients With Macular Degeneration.

Purpose Macular degeneration (MD) affects the central retina and leads to gradual loss of foveal vision. Although, photoreceptors are primarily affected in MD, the retinal nerve fiber layer (RNFL) and central visual pathways may also be altered subsequent to photoreceptor degeneration. Here we investigate whether retinal damage caused by MD alters microstructural properties of visual pathways u...

The regional variations of extrafoveal perception of form in the central visual fields (photopic vision) with special reference to lesions of the visual pathways.

Sound induced photisms in pontine and extrapontine myelinolysis.

BACKGROUND: Synesthesia refers to the simultaneous experience of one primary sensation in another sense mode. Central pontine myelinolysis (CPM) is a non-inflammatory condition affecting the pons more often seen in individuals with alcoholism or on whom presenting hyponatremia is rapidly corrected to supra-normal levels. Asymptomatic cases of CPM have been reported previously. Sound induced pho...

I'll take the low road: the evolutionary underpinnings of visually triggered fear

Although there is general agreement that the central nucleus of the amygdala (CeA) is critical for triggering the neuroendocrine response to visual threats, there is uncertainty about the role of subcortical visual pathways in this process. Primates in general appear to depend less on subcortical visual pathways than other mammals. Yet, imaging studies continue to indicate a role for the superi...