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Behavioural Neurology - Volume 23 2010, Issue 3, Pages 101-105

Department of Psychology, Chuo University Faculty of Letters, Tokyo, Japan

Department of Neurology, Showa University School of Medicine, Tokyo, Japan

Received 19 November 2010; Accepted 19 November 2010

Copyright © 2010 Hindawi Publishing Corporation and the authors. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Some patients with frontotemporal lobar degeneration FTLD have shown the development of painting or musical abilities after the onset of the disease. In this report, we present another emergent ability. A female patient with FTLD showing dense atrophy of the bilateral anterior lobes and a loss of voluntary activity in aspects of daily living, presented with the characteristic behaviours when given a paper and a pair of scissors. When a shape was already drawn on the paper, she showed reasonable skills with the scissors, cutting without any hesitation. When she cut a blank piece of paper, she showed quite unique geometrical preferences. Her severely degenerated brain combined with her geometrical abilities suggests that the human brain is naturally affected by geometrical homogeneity.

Autor: A. Midorikawa and M. Kawamura



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