نوع مقاله : مقاله پژوهشی Released under CC BY-NC 4.0 license I Open Access I
نویسندگان
1 گروه روان شناسی ورزشی، دانشکده علوم ورزشی، دانشگاه تهران
2 گروه علوم ورزشی، دانشکده علوم پایه، دانشگاه افسری امام علی (ع)، تهران، ایران.
3 گروه علوم ورزشی، دانشکده علوم پایه، دانشگاه افسری امام علی (ع)، تهران، ایران .
چکیده
هدف: هدف از این مطالعه تعیین تاثیر تحریک الکتریکی فراجمجمه ای (tDCS) بر انسداد روانی، ترس از شکست و عملکرد تیر اندازی در شرایط تحت فشار در دانشجویان دانشگاه افسری امام علی (ع) بود.
روش پژوهش: این مطالعه نیمه تجربی با طرح پیش آزمون-پس آزمون با یک گروه کنترل و یک گروه تجربی انجام شد. 40 چهل دانشجوی دانشگاه افسری امام علی (ع) در این مطالعه شرکت کردند. در پیش آزمون و پس آزمون، از پرسشنامه ترس از شکست و انسداد روانی و نیز آزمون عملکرد تیر اندازی استفاده شد. تحریک الکتریکی مستقیم فراجمجمه ای به مدت 20 دقیقه با شدت 2 میلی آمپر در ناحیه قشر خلفی جانبی پیش پیشانی (DLPFC) به مدت 10 جلسه اعمال شد. داده ها با استفاده از آزمون تحلیل واریانس با اندازه گیری مکرر تک متغیره تحلیل شدند.
یافته ها: نتایج نشان داد که tDCS بر روی قشر DLPFC میتواند در شرایط تحت فشار انسداد روانی را کاهش دهد اما قادر به تغییر میزان ترس از شکست نبود. همچنین نتایج نشان داد که tDCS میتواند عملکرد تیراندازی را در شرایط تحت فشار افزایش دهد.
نتیجه گیری: به طور کلی میتوان نتیجه گرفت که tDCS احتمالا میتواند باعث افزایش شاخص های مرتبط با عملکرد در محیط های پر فشار نظامی شود. اگر چه برای پیدا کردن سازوکارهای زیربنایی به مطالعات بیشتری نیاز است.
کلیدواژهها
عنوان مقاله [English]
The effect of transcranial direct current stimulation (tDCS) on psychological choking, fear of failure and shooting performance under pressure
نویسندگان [English]
- Amir hossein Mehrsafar 1
- Sajjad Mohammad Yari 2
- Abbas Shakibirad 3
1 Department of sport psychology, faculty of sport sciences, University of Tehran
2 Department of Sports Science, Faculty of Basic Sciences, Imam Ali Officers' University, Tehran, Iran.
3 Department of Sports Science, Faculty of Basic Sciences, Imam Ali Officers' University, Tehran, Iran.
چکیده [English]
Introduction: The mental appraisal and athlete's ability to deal with stressful factors affect the development of negative emotional states and anxiety. Considering the impact of stress and related psychological responses on performance, interventions that reduce stress and may thus increase athletic performance need to be investigated.
This study aimed to determine the effect of transcranial Direct Current Stimulation (tDCS) on psychological choking, fear of failure, and shooting performance underpressure in students of Imam Ali Officers’ University.
Methods: This quasi-experimental study was conducted with a pre-test and post-test design that includes a control and an experimental group. Forty students of Imam Ali Officers' University participated in this study. In the pre-test and post-test, the fearof failure and psychological choking questionnaires and also shooting performance tests were used. The tDCS was applied for 20 minutes with an intensity of 2 mA overthe dorsolateral prefrontal cortex (DLPFC) region for 10 sessions. Data were analyzed using univariate repeated measures ANOVA test.
Results: The results showed that tDCS over DLPFC could reduce psychological choking under pressure but could not change the fear of failure. The results also showed that tDCS can increase shooting performance under pressure.
Conclusion: In general, it can be concluded that tDCS probably increase performance-related indicators in high-pressure military environments. However, more studies are needed to find the underlying mechanisms.
کلیدواژهها [English]
- transcranial Direct Current Stimulation (tDCS)
- Choking under Pressure
- Fear of Failure
- Shooting Performance
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