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تأثیر مشاهده و تصویرسازی عمل بر سرکوب ریتم میو در پرتاب آزاد بسکتبال | ||
| عصب روان شناسی | ||
| مقاله 5، دوره 3، شماره 8، خرداد 1396، صفحه 85-102 اصل مقاله (689.93 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| فرزانه حاتمی* 1؛ فرشید طهماسبی1؛ الهام حاتمی شاه میر2 | ||
| 1استادیار، دانشگاه تربیت دبیر شهید رجایی. تهران. ایران. | ||
| 2دانشجوی دکترای کنترل حرکتی، دانشگاه تهران. تهران. ایران. | ||
| چکیده | ||
| مقدمه: هدف از اجرای پژوهش حاضر، تعیین تأثیر مشاهده و تصویرسازی پرتاب آزاد بسکتبال بر واکنش نورون‌های آینهای بود. روش: 10 دانشجوی پسر مبتدی (میانگین سنی؛ 5/1 ±2/23 سال) به‌صورت داوطلبانه در این تحقیق شرکت کردند. ترتیب مشاهده و تصویرسازی به‌صورت موازنه متقابل کنترل شد. امواج مغزی شرکتکنندگان در چهار حالت استراحت با چشمان باز، بسته، مشاهده و تصویرسازی پرتاب آزاد به‌صورت بیرونی توسط دستگاه الکتروانسفالوگرافی ثبت گردید. سرکوب ریتم میو به‌صورت نسبت توان موج آلفا در حالت مشاهده و تصویرسازی به توان موج آلفا در حالت استراحت با چشمان باز و بسته محاسبه شد. یافتهها: نتایج آزمون تحلیل واریانس درونگروهی 3×2 (شرایط آزمون: مشاهده و تصویرسازی؛ منطقه عصبی: 3C، 4C، Cz) در دو حالت استراحت با چشمان باز و بسته نشان میدهند که اثر اصلی شرایط آزمون معنادار است (01/0 ≥ P)، بهگونهای که بین سرکوب ریتم میو در دو حالت مشاهده و تصویرسازی تفاوت معناداری وجود دارد. به‌عبارت‌دیگر، ریتم میو در حالت مشاهده نسبت به تصویرسازی به‌طور معناداری بیشتر سرکوب شده است (01/0 ≥ P)، اما اثر اصلی منطقه عصبی و تعامل آنها معنادار نبود. نتیجهگیری: نتایج تحقیق پیشنهاد میکنند که سرکوب بیشتر ریتم میو در حالت مشاهده نسبت به تصویرسازی نشاندهندهی واکنش بیشتر نورون‌های آینهای به مشاهدهی عمل است. لذا به نظر میرسد مشاهده نسبت به تصویرسازی راهبرد مؤثرتری در فرایند آموزش است. | ||
| کلیدواژه‌ها | ||
| سیستم نورون‌های آینهای؛ تصویرسازی حرکتی؛ مشاهده عمل؛ ریتم میو؛ پرتاب آزاد بسکتبال | ||
| عنوان مقاله [English] | ||
| The Effect of Action Observation and Motor Imagery on Mu Rhythm Suppression in Basketball Free Throw Shot | ||
| نویسندگان [English] | ||
| Farzaneh Hatami1؛ Farshid Tahmasbi1؛ Elham Hatami Shahmir2 | ||
| 1Assistant Professor, Shahid Rajaee Teacher Training University, Tehran, Iran. | ||
| 2PhD student in Motor control, Tehran University, Tehran, Iran. | ||
| چکیده [English] | ||
| Introduction: The purpose of present study was to examine the effects of action observation and motor imagery on mu rhythm suppression in basketball free throw shot. Method: 10 novice male students (mean age: 23.2±1.5 years) voluntarily participated in this study. The observation and imagery’ order was counterbalanced. Participants’ Brain Waves were recorded by electroencephalograph in four conditions, open and closed eye resting, observing and imagery of free throw shot in external perspective. Mu rhythm Suppression was calculated as a ratio of the alpha power during observation and imagery relative to the alpha power in the baseline conditions (open and closed eyes rest). Findings: Results of ANOVA (2×3) with the within-subject factors of condition (Observation, Imagery) and brain area (C3,CZ,C4) relative to the resting period with open and closed eyes showed that only the main effect of the condition were significant (P ≥0.01), so that, there were significant differences between mu rhythm suppression in observation and imagery conditions. In other words, mu rhythm in observation condition was more significantly suppressed compared to the imagery condition (P ≥0.01), but the main effect of brain area and the interaction of both variables were not significant. Conclusion: Results of present study suggest that more mu rhythm suppression in action observation compared to imagery condition reflects more reactivity of mirror neurons to action observation. It appears that observation is more effective strategy in educational situation. | ||
| کلیدواژه‌ها [English] | ||
| Mirror Neuron System, Motor Imagery, Action Observation, Mu Rhythm, Basketball Free Throw Shot | ||
| مراجع | ||
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