با همکاری مشترک دانشگاه پیام نور و انجمن روانشناسی اجتماعی ایران

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد گروه علوم اعصاب شناختی، دانشگاه تبریز، تبریز، ایران.

2 دانشیار گروه علوم اعصاب شناختی، دانشگاه تبریز، تبریز، ایران.

3 استاد گروه روانشناسی، دانشگاه تبریز، تبریز، ایران.

چکیده

مقدمه: پژوهش حاضر با هدف تعیین اثربخشی تحریک الکتریکی فراجمجمه‌ای بر همنوایی اجتماعی-اطلاعاتی باتوجه به نقش تعدیلی جنسیت انجام گرفت. روش: دو گروه( زن و مرد) که هر گروه شامل 24 نفر 30-18 ساله بودند از بین دانشجویان دانشگاه تبریز با روش نمونه گیری غیر تصادفی و در دسترس انتخاب شدند. طرح پژوهش حاضر از نوع نیمه‌آزمایشی با پیش آزمون و پس آزمون بود .در مرحله ی پیش آزمون، تکلیف کامپیوتری همنوایی اجتماعی-اطلاعاتی اجرا شد. سپس 2 جلسه 20 دقیقه ای تحریک الکتریکی فراجمجمه ای اعمال شد. در مرحله پس آزمون، دوباره همان تکلیف همنوایی اجتماعی-اطلاعاتی اجرا شد. در آخر یافته ها توسط تحلیل واریانس اندازه گیری های مکرر و تحلیل کوواریانس تک متغیره در نرم افزار SPSS نسخه 24 مورد تجزیه و تحلیل قرار گرفت. یافته ها: میزان همنوایی اجتماعی-اطلاعاتی بعد از اعمال تحریک الکتریکی فراجمجمه‌ای در هر دو گروه افزایش یافت و جنسیت اثر این تحریک را تعدیل نکرد. نتیجه گیری: تحریک الکتریکی فراجمجمه‌ای بر همنوایی در زنان و مردان اثر یکسان دارد. همچنین تحریک کاتدی کرتکس پیش پیشانی بطنی-میانی بطور قابل توجهی تمایل به همنوایی اجتماعی-اطلاعاتی را در زنان و مردان زمانی که تصمیم اولیه شرکت کنندگان از نظر اکثریت متفاوت است، افزایش می‌دهد. از آنجایی که تحریک کاتدی شلیک عصبی، تحریک پذیری قشر مغز و پتانسیل های برانگیخته حرکتی را کاهش می دهد، استدلال می شود که کاهش تحریک قشر پیش پیشانی بطنی-میانی باعث افزایش رفتار همنوایی در افراد می شود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Effectiveness of Transcranial Direct Current Stimulation on Informational Social Conformity: The Moderating Role of Gender

نویسندگان [English]

  • Farzaneh Abdollahzadeh Bina 1
  • Hassan Sabouri Moghaddam 2
  • Abbas Bakhshipour Roudsari 3

1 M.Sc, Cognitive Neuroscience division, University of Tabriz, Tabriz, Iran.

2 Associate Prof, Cognitive Neuroscience division, University of Tabriz, Tabriz, Iran.

3 Prof. Psychology division, University of Tabriz, Tabriz, Iran.

چکیده [English]

Introduction: The present study was conducted to determine the effectiveness of transcranial direct current stimulation on social-informational conformity, considering the moderating role of gender. Method: Two groups (male and female), each group consisting of 24 people aged 18-30, were selected from Tabriz University students' society with a non-random and available sampling method. The current research design was a semi-experimental type with a pre-test and a post-test. In the pre-test stage, the social-informational conformity computerized task was implemented. Then, two sessions (each, 20 minutes) of transcranial direct current stimulation were applied. In the post-test phase, the same social-informational conformity task was performed. Finally, the findings were analyzed with repeated measures variance analysis and covariance analysis in SPSS version 24 software. Findings: The amount of social-informational conformity increased in both groups after applying transcranial direct current stimulation, and gender did not moderate the effect of this stimulation. Conclusion: Transcranial direct current stimulation has the same effect on conformity in both men and women. Also, cathodal stimulation of the ventromedial prefrontal cortex significantly increases the tendency for social-informational conformity in women and men when the participants' initial decision is different from the majority. Since cathodal stimulation reduces neuronal firing, cortical excitability, and motor-evoked potentials, it is reasoned that the reduction of vmPFC stimulation enhances the conformity behavior in people.

کلیدواژه‌ها [English]

  • Gender
  • Social-informational conformity
  • Transcranial direct current stimulation
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