کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4343981 | 1615151 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modulation of cortical activity in response to visually induced postural perturbation: Combined VR and EEG study
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
There is evidence from EEG studies that unexpected perturbations to standing posture induce a differential modulation of cortical activity compared to self-initiated and/or predictable conditions. However, the neural correlates of whole body postural response to visually induced perturbations on standing posture have not been examined. Here we employ a novel experimental paradigm via combined virtual reality (VR) and EEG measures to examine the effects of visually induced perturbations on the dynamics of postural responses. Twelve Penn State student-athletes without prior history of neurologic disorders and/or orthopaedic injuries participated in this study. There were no differences in response/reaction time measures between both spatially and temporally unpredictable and fully predictable conditions (p > .05). However, significantly stronger modulation of frontal-central EEG theta activity was present prior to onset of unpredictable postural perturbations (p < .05). It is postulated that enhanced EEG theta in unpredictable conditions reflects increased effort to recruit additional brain resources to meet the demands of the postural tasks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 547, 28 June 2013, Pages 6-9
Journal: Neuroscience Letters - Volume 547, 28 June 2013, Pages 6-9
نویسندگان
Semyon M. Slobounov, Elizabeth Teel, Karl M. Newell,