Neural substrates underlying progressive micrographia in Parkinson's disease

ConclusionsThese findings suggest that PM in free writing in PD patients is caused by the difficulty of monitoring whether the actual handwriting movements are desirable for maintaining letter size during self ‐paced handwriting. By contrast, PM in copying in PD patients is evoked by a lack of visual information about the personal handwriting and hand motions that are used as cues for maintaining letter sizes.

Source: Brain and Behavior - June 17, 2020 Category: Neurology Authors: Shigenori Kanno, Mayumi Shinohara, Kasumi Kanno, Yukihiro Gomi, Makoto Uchiyama, Yoshiyuki Nishio, Toru Baba, Yoshiyuki Hosokai, Atsushi Takeda, Hiroshi Fukuda, Etsuro Mori, Kyoko Suzuki Tags: ORIGINAL RESEARCH Source Type: research