نقش سیستم پاداش مغز در اضافه وزن و چاقی: بررسی نقش واسطه‌گری غذا خوردن هیجانی در رابطه‌ی بین حساسیت به پاداش و اضافه وزن

نوع مقاله: علمی- پژوهشی

نویسندگان

1 دانشیار روانشناسی دانشگاه خلیج فارس بوشهر.

2 کارشناس ارشد روانشناسی عمومی دانشگاه خلیج فارس بوشهر.

چکیده

مقدمه: شیوع چاقی در سطح جهانی در حال افزایش است. از میان عوامل مختلف تاثیر گذار، حساسیت به پاداش به عنوان یک ویژگی شخصیتی روان- بیولوژیکی که ریشه در مسیرهای دوپامینی دارد، می‌تواند عامل مهمی در زمینه عادات غذایی باشد. هدف پژوهش حاضر بررسی رابطه‌ی حساسیت به پاداش با اضافه وزن و چاقی و بررسی نقش واسطه‌گری غذاخوردن هیجانی در این میان می‌باشد. روش: روش پژوهش توصیفی از نوع همبستگی است. جامعه آماری پژوهش کلیه‌ی ‌دبیرستان‌های غیر انتفاعی شهر رشت بودند. اعضای نمونه شامل 650 دانش آموز  دختر و پسر ( 400 نفر دختر و 250 نفر پسر) بوده که به روش نمونه‌گیری خوشه‌ای انتخاب شدند. ابزار به کار گرفته شده در این پژوهش، ترازوی اندازه‌گیری وزن، مقیاس حساسیت به پاداش و مقیاس غذاخوردن هیجانی می‌باشد. برای تجزیه و تحلیل داده ها از رگرسیون استفاده گردید. یافته‌ها: یافته‌ها نشان داد حساسیت بالا به پاداش با اضافه وزن رابطه‌ی مثبت و معنادار دارد و غذا خوردن هیجانی نقش میانجیگری در رابطه‌ی آن دو دارد. همچنین حساسیت پایین به پاداش رابطه‌ی مثبت و معناداری با چاقی داشت. نتیجه گیری: پژوهش تایید کننده‌ی نقش نظام پاداش مغز در میزان وزن می‌باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The role of the brain's reward system in overweight and obesity: Investigating mediating role of emotional eating in relationship between sensivity to reward and overweight

نویسندگان [English]

  • Ali Pakize 1
  • Maryam Behzadfar 2
1 Associate Professor in Psychology, Persian Gulf University.
2 M.A. General Psychology, Persian Gulf University.
چکیده [English]

Objective: The prevalence of obesity in the world is rising. Among the various influential factors, sensitivity to rewards as a psycho-biological personality trait which is rooted in dopamine pathways can be a major contributor to food habits. The aim of this study was to examine the relationship between sensitivity to reward with overweight and obesity and also the mediating role of emotional eating in their relationship. Method: the research method is descriptive correlation type. The research Statistical Society have consisted of all high schools the city of Rasht. The sample have consisted of 650 students (400 girls and 250 boys) that selected with clustered sampling and were asked to complete sensitivity to reward and emotional eating scales and also used the balance for measurement of weight. To investigate the hypothesis, regression was used. Results: The results showed the relationship between high sensitivity to reward with overweight is significantly positive and emotional eating have a mediating role in their relationship. Also, the relation between low sensitivity to reward with obesity is significantly positive. Conclusion: The results of this research confirmed the role of the brain's reward system in the body weight

کلیدواژه‌ها [English]

  • Obesity
  • Overweight
  • Sensivity to reward
  • Emotional eating

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