scholarly journals Action perception recruits the cerebellum and is impaired in patients with spinocerebellar ataxia

Brain ◽  
2019 ◽  
Vol 142 (12) ◽  
pp. 3791-3805 ◽  
Author(s):  
Abdel R Abdelgabar ◽  
Judith Suttrup ◽  
Robin Broersen ◽  
Ritu Bhandari ◽  
Samuel Picard ◽  
...  

Using a combination of neuroimaging and behavioural studies, Abdelgabar et al. show that the cerebellum helps us perceive the actions of others. Disorders such as spinocerebellar ataxia type 6, which disrupt cerebellar functioning, impair our ability to perceive the kinematics of other people’s actions, with potential implications for social cognition.

2018 ◽  
Author(s):  
Abdel R. Abdelgabar ◽  
Judith Suttrup ◽  
Robin Broersen ◽  
Ritu Bhandari ◽  
Samuel Picard ◽  
...  

AbstractOur cerebellum has been proposed to generate prediction signals that may help us plan and execute our motor programs. However, to what extent our cerebellum is also actively involved in perceiving the action of others remains to be elucidated. Using fMRI, we show here that observing goal-directed hand actions of others bilaterally recruits cerebellar Lobules VI, VIIb and VIIIa. Moreover, whereas healthy subjects (n=31) were found to be able to discriminate subtle differences in the kinematics of observed limb movements of others, patients suffering from spinocerebellar ataxia type 6 (SCA6; n=21) were severely impaired in performing such tasks. Our data suggest that the human cerebellum is actively involved in perceiving the kinematics of the hand actions of others and that SCA6 patients’ deficits include a difficulty in perceiving the actions of other individuals. This finding alerts us to the fact that cerebellar disorders can alter social cognition. Given that impairments in social cognition have been reported to be one of the most debilitating consequences of neurological disorders, this finding may be relevant to improving the quality of life of patients and their families.


Gene ◽  
2006 ◽  
Vol 380 (1) ◽  
pp. 54-61 ◽  
Author(s):  
Eva Andrés-Mateos ◽  
Jesús Cruces ◽  
Jaime Renart ◽  
Luisa M. Solís-Garrido ◽  
Rocío Serantes ◽  
...  

2008 ◽  
Vol 66 (3b) ◽  
pp. 691-694 ◽  
Author(s):  
Hélio A.G. Teive ◽  
Renato Puppi Munhoz ◽  
Salmo Raskin ◽  
Lineu César Werneck

Spinocerebellar ataxia type 6 (SCA 6) is an autosomal dominant cerebellar ataxia caused by CAG repeat expansion in the SCA6 gene, a alpha 1A voltage-dependent calcium channel subunit gene on chromosome 19p13. SCA-6 is characterized predominantly by slowly progressive pure cerebellar ataxia with late onset. We report three index patients, with pure, late onset, cerebellar ataxia, belonging to three different Brazilian families, all of them with Japanese ancestry, from Hokkaido island of Japan.


2001 ◽  
Vol 185 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Masatada Mori ◽  
Yoshiki Adachi ◽  
Masayoshi Kusumi ◽  
Kenji Nakashima

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