نوع مقاله : مطالعه پژوهشی اصیل
نویسندگان
1 گروه علوم رفتاری و شناختی در ورزش دانشکده علوم ورزشی و تندرستی، دانشگاه شهید بهشتی
2 دانشگاه شهید بهشتی
3 پژوهشکده علوم شناختی و مغز دانشگاه شهید بهشتی،
چکیده
هدف پژوهش حاضر، بررسی تأثیر خستگی ذهنی بر کارایی عصبی شبکه کنترل اجرایی توجه در افراد ورزشکار است. بدین منظور 22 دانشجوی ورزشکار حرفه‌ای داوطلبانه در پژوهش شرکت کردند. به منظور سنجش سرعت پردازش و میزان درصد خطای شبکه کنترل اجرایی، آزمون شبکه‌های توجه را قبل و بعد از خستگی ذهنی انجام دادند. شرکت‌کنندگان آزمون استروپ را جهت ایجاد خستگی ذهنی به مدت 60 دقیقه انجام دادند و بلافاصله بعد از آن آزمون شبکه‌های توجه را اجرا کردند. نتایج آزمون تی وابسته افزایش معناداری در میزان درصد خطای شبکه کنترل اجرایی در شرایط خستگی ذهنی نشان داد، اما سرعت پردازش تحت تأثیر خستگی ذهنی قرار نگرفت. به طور کلی، این یافته‌ها از کاهش کارایی پردازش تکلیف حمایت می‌کند که تحت تأثیر مبادله سرعت-دقت قرارگرفته است. بنابراین، کاهش دقت پردازش نشان‌دهندۀ فعالیت مکانیسم بازداری و بهبود سرعت پردازش ناشی از درگیری مکانیسم تسهیل سیستم تنظیم دوگانه را می‌توان بیان کرد.
کلیدواژه‌ها
عنوان مقاله [English]
The Effect of Cognitive Fatigue on the Neural Efficacy of the Executive Control Network among Athletes: Dual Regulation System Model
نویسندگان [English]
- Sahar Mohammadzadeh 1
- alireza farsi 2
- Reza Khosrowabadi 3
1 shahid beheshti university, Department of Cognitive Sciences and Behavior in sport, Faculty of Sport Science, Shahid Beheshti University
2 shahid beheshti university
3 the Institute for Cognitive and Brain Sciences, Shahid Beheshti University, Tehran, Iran.
چکیده [English]
The present study aimed to evaluate the effect of mental fatigue on the neural efficacy of the executive control network in athletes. To this aim, 22 professional athletes’ students participated voluntarily. In order to measure the processing speed and the percentage of error in the control network, attention network test was conducted before and after mental fatigue. The subjects performed the Stroop test for 60 minutes in order to create mental fatigue. Then, they were asked to perform the attention network test. The results of dependent t-test indicated a significant increase in the error rate of the executive control network during mental fatigue. However, processing speed was not affected by mental fatigue. The findings support the reduction in the efficiency of task processing, which is influenced by the speed-accuracy exchange. Therefore, decreasing the effect of processing accuracy indicated the inhibition mechanism and the improvement of processing speed caused by activating the facilitation mechanism in the dual-regulation system.
کلیدواژه‌ها [English]
- Facilitation System
- Inhibition System
- Mental Fatigue
- Executive Control
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