What is directional disorientation?
Directional or heading disorientation is defined as impaired sense of direction despite preserved recognition of buildings and landscape, resulting in an inability to navigate in a familiar environment [1, 2].
What is topographical amnesia?
Abstract. Transient topographical amnesia (TTA) is the temporary inability to find one’s way in familiar or unfamiliar surroundings due to the inability to use well known environmental landmarks for route finding.
What does topographical orientation mean?
Topographical orientation is the ability to orient oneself within the environment and to navigate through it to specific destinations [1].
What is topographic classification?
Topographical approaches were divided into two perspective groups, connected to topographical classifications (Figure 2). Morphometric classification refers to the shape of the topography, and generic classification is related to the erosion-accumulation process.
Is developmental topographical disorientation a disability?
Despite possessing otherwise normal cognitive skills, and without any known brain injuries or neurological disorders, these people have experienced severe topographical orientation problems since childhood. This disabling lifelong disorder is called developmental topographical disorientation.
What is topographical memory?
1. The ability to recall the contours, design, shape, or structure of a previously experienced environment. 2. The ability to hold in the mind a map of a person, place, or thing.
What does topography mean in medical terms?
(tō-pog’ră-fē), In anatomy, the description of any part of the body, especially in relation to a definite and limited area of the surface.
What are topographical disorders?
Visual Disorders The term topographical disorientation refers to an acquired inability to navigate the environment in daily life. This can be conceptualized as a memory defect in the visual realm, but a number of mechanisms of the agnosias can be seen in this disorder.
What is it called when you have no sense of direction?
Dromosagnosia, or why some people lose their sense of direction while driving.
What is parietal lobe syndromes?
The parietal lobe syndrome consists of constructional apraxia, visuospatial agnosia, topographical disorientation (getting lost, inability to learn new routes), visual inattention and cortical sensory loss, when objects can be felt but not fully interpreted or discriminated.
What is topographical disorientation?
The term topographical disorientation refers to an acquired inability to navigate the environment in daily life. This can be conceptualized as a memory defect in the visual realm, but a number of mechanisms of the agnosias can be seen in this disorder.
Which lesions are characteristic of egocentrically disoriented frontal lobe syndromes?
Except for Mr Smith, for whom lesion data are not available, all egocentrically disoriented patients described here had either bilateral or unilateral right lesions of the posterior parietal lobe, commonly involving the superior parietal lobule.
How should topographically disoriented patients be divided?
In 1985, Levine and colleagues, following in the footsteps of previous authors (Whiteley and Warrington, 1978), proposed that topographically disoriented patients may be more profitably divided into two groups: those with impairments in representing spatial visual information, and those impaired in representing object visual information.
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