Topographical disorientation

Topographical disorientation, also known as topographical agnosia and topographagnosia, is the inability to orient oneself in one's surroundings as a result of focal brain damage. This disability may result from the inability to make use of selective spatial information (e.g., environmental landmarks) or to orient by means of specific cognitive strategies such as the ability to form a mental representation of the environment, also known as a cognitive map. It may be part of a syndrome known as visuospatial dysgnosia.

Topographical disorientation is the inability to orient in the surrounding as a result of focal brain damage. Topographical Disorientation has been studied for decades using case studies of patients who have selectively lost their ability to find their way within large-scale, locomotor environments. Several dozen case reports of topographical disorientation have been presented over the last century. Studying these people will aid in the understanding of the complex, multi-component behavior of navigation. Topographical disorientation may result from a stroke or part of a progressive illness, hemispatial neglect, dementia, Alzheimer's disease.

Developmental topographical disorientation (DTD) refers to the inability to orient from childhood despite the absence of any apparent brain damage, neurological condition or general cognitive defects. Individuals affected by DTD are unable to generate a mental representation of the environment (i.e. a cognitive map) and therefore unable to make use of it while orienting (a process that usually people go through while orienting). Not to be confused with healthy individuals who have a poor sense of direction, individuals affected by DTD get lost in very familiar surroundings, such as their house or neighborhood, daily.

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