Transient Topographical Disorientation
| Autor: | Alberca R, D. García, R. García Lozano, E. Montes, F. Boza, B. Sánchez, E. Gil-Néciga |
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| Rok vydání: | 2002 |
| Předmět: |
Adult
Male Tomography Emission-Computed Single-Photon Recall Topographical disorientation Electroencephalography Recovery of Function Middle Aged Neuropsychological Tests Magnetic Resonance Imaging Familiar environment Neurology Orientation Agnosia medicine Humans Female Transient (computer programming) Neurology (clinical) medicine.symptom Tomography X-Ray Computed Psychology Aged Follow-Up Studies Cognitive psychology |
| Zdroj: | European Neurology. 48:191-199 |
| ISSN: | 1421-9913 0014-3022 |
| DOI: | 10.1159/000066173 |
| Popis: | Transient topographical disorientation (TTD) is a short-lasting inability to find one’s way in a familiar environment, while the patient remains conscious and is able to recall what happened. We report the study of 10 patients with episodes of TTD, studied on the days following the last episode. The episodes of TTD could be separated into two types: the patients either reported difficulties in spatial orientation with preserved abilities to recognize landmarks and objects, or the difficulties appeared with the recognition of landmarks. Tests exploring spatial orientation, as well as higher visuoperceptive capacities were altered in most of the patients and brain SPECT showed hypoperfusion of the right hemisphere in all patients, which could also be demonstrated 2 years later in some cases. Altogether, our findings suggest that TTD is frequently associated with a more persistent right hemisphere dysfunction of unknown cause. This chronic alteration could represent either a sequel of the acute episode or a preexisting right hemisphere deficit, which inclined the acute insult to be manifested as TTD. |
| Databáze: | OpenAIRE |
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