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Neurol Clin Neurosci. 2018 Jan;6(1):16-18. doi: 10.1111/ncn3.12166. Epub 2017 Dec 12.

Singular case of the driving instructor: Temporal and topographical disorientation.

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Department of NeurologyShowa University School of MedicineTokyoJapan.
Department of PhysiologyShowa University School of MedicineTokyoJapan.
Department of PsychologyFaculty of LettersChou UniversityTokyoJapan.
Medical Research Communications ProgramThe University of Tokyo Postgraduate School of MedicineTokyoJapan.


Lesions of the medio-parietal lobes are linked with topographical and temporal disorientation, and are of interest to understanding mental time. We examined a 39-year-old man who worked as a driving instructor before cerebral hemorrhage, and followed his case for 8 years including neuropsychological testing and brain imaging. The patient had mild anterograde episodic amnesia, but no semantic amnesia. He felt that time passed too quickly, and developed a compulsive routine to compensate, although he was able to count time at a normal speed. Furthermore, he was unable to accurately sketch the layout of his house and to make a cross-reference type timetable for the future. Brain magnetic resonance imaging showed lesions of the left anterior-posterior cingulate gyrus, and N-isopropyl-[123I] p-iodoamphetamine single-photon emission computed tomography showed decreased blood flow mainly of the left medio-parietal lobe.


future thinking; mental time; temporal disorientation; time perception; topographical disorientation

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