Prosopagnosia: Seeing the World through Fog-Colored Glasses :: Biology Essays Research Papers

Prosopagnosia Seeing the World through with(predicate) Fog-Colored Glasses With impressive consistency, the optic system, along with each accomp whatsoevering division that in sum total constitutes a person, develops without error. Patterns of input impinge on complex layers of cells, with the resulting neural interpretation allowing us to negotiate the spatial valet around us such that we whitethorn avoid causing slander to ourselves or to others. Various devices and techniques have been devised to allow those who ar not weaponed with a similarly functioning visual system to escape earthy selections discerning grasp. However, various gradations of dysfunction exist between perfect and no vision, which complicate the life of the person suffering from these rowdinesss no less. The disorder prosopagnosia, in particular, otherwise known as face maneuverness, causes a crippling shortfall in a persons ability to recognize faces (1, 2, 3, 6, 7). It is a somewhat carsick understo od and deceiving phenomenon. Those individuals suffering from prosopagnosia are able to see perfectly well, to the extremity that their perception of visual stimuli is not impaired. However, when presented with a persons face, they are utterly unable(p) to recall having seen that face or having interacted with the person attached to it.Some spate would make the distinction between prosopagnosia and facial agnosia (4, 8), with the former applying only to well-known(prenominal) faces while the latter applies more generally to prevent the recognition of any faces. While this might suggest memory impairment as a possible cause, evidence for perceptual deficits has been consistent (4), at that placeby refuting the notion that these individuals are simply not able to remember people they have encountered. Specifically, the locus of damage that results in prosopagnosia appears to be the medial occipitotemporal cortex (4), though the disorder may be congenital or acquired (2). Lesions in this somewhat fuck and deeply embedded region of the brain, suggested by some researchers to be two-sided in the instance of this disorder, would be consistent with the presented deficits in perception. However there are certain elements of the research and the disorder which seem counterintuitive. For instance, that these face blind individuals only cite difficulty in recognizing familiar faces suggests that the problem may be more than just perceptual. Furthermore, there is separate evidence suggesting that visual processing occurs on a unilateral level (4), and that stimuli are comprehend contralaterally. This orientation does not preclude a bilateral lesioning being at the root of prosopagnosia, however it does offer some complicating factors.