کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
924009 1473982 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pubertal status associations with reward and threat sensitivities and subcortical brain volumes during adolescence
ترجمه فارسی عنوان
ارتباطات وضعیت مثانه با حساسیت پاداش و تهدید و حجم مغز زیر جلدی در طول نوجوانی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب شناختی
چکیده انگلیسی


• Associations between puberty and reward sensitivity in adolescence are examined.
• Controlling for age, pubertal status has unique relationship to reward sensitivity.
• Pubertal status has sex-specific unique effects on nucleus accumbens volumes.

Adolescence is characterized by complex developmental processes that impact behavior, biology, and social functioning. Two such adolescence-specific processes are puberty and increases in reward sensitivity. Relations between these processes are poorly understood. The present study focused on examining unique effects of puberty, age, and sex on reward and threat sensitivities and volumes of subcortical brain structures relevant for reward/threat processing in a healthy sample of 9–18 year-olds. Unlike age, pubertal status had a significant unique positive relationship with reward sensitivity. In addition, there was a trend for adolescent females to exhibit higher threat sensitivity with more advanced pubertal development and higher reward and threat sensitivity with older age. Similarly, there were significant puberty by sex interaction effects on striatal volumes, i.e., left nucleus accumbens and right pallidum. The present pattern of results suggests that pubertal development, independent of chronological age, is uniquely associated with reward hypersensitivity and with structural differences in striatal regions implicated in reward processing.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain and Cognition - Volume 89, August 2014, Pages 15–26
نویسندگان
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