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A shrunken world - micropsia after a right occipito-parietal ischemic stroke

Van Den Berg, N. S., Huitema, R. B., Spikman, J. M., Van Laar, P. J. & De Haan, E. H. F., 30-Aug-2019, In : Neurocase. 25, 5, 7 p.

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  • A shrunken world – micropsia after a right occipito-parietal ischemic stroke

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DOI

Micropsia is a rare condition in which patients perceive the outside world smaller in size than it actually is. We examined a patient who, after a right occipito-parietal stroke, subjectively reported perceiving everything at seventy percent of the actual size. Using experimental tasks, we confirmed the extent of his micropsia at 70%. Visual half-field tests showed an impaired perception of shape, location and motion in the left visual field. As his micropsia concerns the complete visual field, we suggest that it is caused by a higher-order compensation process in order to reconcile the conflicting information from the two hemifields.

Original languageEnglish
Number of pages7
JournalNeurocase
Volume25
Issue number5
Publication statusPublished - 30-Aug-2019

    Keywords

  • Micropsia, metamorphopsia, visual perceptual impairment, occipito-parietal infarction, neuropsychology, PERCEPTION, DISORDERS

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