Abstract：
:This study deals with the coordination of bilateral synchronous and asynchronous hand movements. Cooperative hand movements (e.g. opening a bottle) were shown to be coordinated by a neural coupling, reflected in the appearance of reflex responses in forearm muscles of both sides to unilateral arm nerve stimulation. The mechanical effect of this neural coupling was investigated during bilateral synchronous and asynchronous sinusoidal tracking tasks. During the synchronous tracking task, right handed corrective movements were mirrored by the left hand, suggesting a neural coupling. During the asynchronous tracking task, large non-coupled bilateral corrective hand movements dominated. The findings indicate that during synchronous hand movements an automatic coordination of bilateral hand movements occurs. In contrast, asynchronous tasks require independent hand movements. These appear to be visually guided and voluntarily controlled, leading to larger movement errors and corrections.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Köchli S,Scharfenberger T,Dietz Vdoi
10.1016/j.neulet.2020.134757subject
Has Abstractpub_date
2020-02-16 00:00:00pages
134757eissn
0304-3940issn
1872-7972pii
S0304-3940(20)30027-6journal_volume
720pub_type
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