کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
924542 921240 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effect of attending to motor overflow on its voluntary inhibition in young and older adults
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
پیش نمایش صفحه اول مقاله
The effect of attending to motor overflow on its voluntary inhibition in young and older adults
چکیده انگلیسی

Motor overflow refers to involuntary movement or muscle activity coinciding with voluntary movement. We examined whether 16 young adults (18–30 years) and 16 older adults (50–80 years) could voluntarily inhibit overflow. Participants performed a finger pressing task, exerting 50% of their maximal force. Overflow was concurrently recorded in the non-task hand. In the first condition, participants were not made aware of their motor overflow. Then participants, though informed of it, were asked to ignore their overflow. Finally, participants were requested to inhibit overflow with, and then without visual feedback, or vice versa. Overflow was exacerbated when older adults were unaware of it, and was reduced once they were informed. For young adults there was no significant difference between these conditions. Both Age Groups could significantly reduce overflow when so requested, independent of visual feedback. Thus motor overflow can be modulated by higher order cognitive control with directed attention.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain and Cognition - Volume 74, Issue 3, December 2010, Pages 358–364
نویسندگان
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