کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
931389 1474448 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Intra-hemispheric functional coupling of alpha rhythms is related to golfer's performance: A coherence EEG study
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Intra-hemispheric functional coupling of alpha rhythms is related to golfer's performance: A coherence EEG study
چکیده انگلیسی

It has been shown that frontocentral electroencephalographic (EEG) alpha rhythms (about 10–12 Hz) were higher in amplitude in expert golfers in successful than unsuccessful putts, possibly reflecting the idea that amplitude regulation of frontocentral alpha rhythms is a physiological mechanism implied in motor control and golfer's performance (Babiloni et al., 2008). Here, we tested the ancillary hypothesis that golfer's performance is also associated to an improved coordination of cortical activity, as reflected by functional coupling of alpha rhythms across cortical regions. To this aim, between-electrodes spectral coherence was computed from spatially enhanced EEG data of the mentioned study (i.e. right handed 12 expert golfers; augmented 10–20 system; surface Laplacian estimation). Low- (about 8–10 Hz) and high-frequency (about 10–12 Hz) alpha sub-bands were considered with reference to individual alpha frequency peak. Statistical results showed that intra-hemispheric low-frequency alpha coherence in bilateral parietal–frontal (P3–F3 and P4–F4 electrodes) and parietal–central (P3–C3 and P4–C4 electrodes) was higher in amplitude in successful than unsuccessful putts (p < 0.004). The same was true for intra-hemispheric high-frequency alpha coherence in bilateral parietal–frontal regions (p < 0.004). These findings suggest that intra-hemispheric functional coupling of cortical alpha rhythms between “visuo-spatial” parietal area and other cortical areas is implicated in fine motor control of golfer's performance.


► Different golfer's performances are associated to a different cortical activity.
► Functional coupling of alpha rhythms reflects coordination of cortical activities.
► Intra-hemispheric coherence was higher in successful than unsuccessful putts.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Psychophysiology - Volume 82, Issue 3, December 2011, Pages 260–268
نویسندگان
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