کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6260977 1613118 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dimensional Change Card Sort performance associated with age-related differences in functional connectivity of lateral prefrontal cortex
ترجمه فارسی عنوان
تغییر اندازه ابعاد مرتب سازی عملکرد با توجه به اختلافات مربوط به سن در اتصال عملکردی قشر پیشانی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
چکیده انگلیسی

The Dimensional Change Card Sort (DCCS) is a standard procedure for assessing executive functioning early in development. In the task, participants switch from sorting cards one way (e.g., by color) to sorting them a different way (e.g., by shape). Traditional accounts associate age-related changes in DCCS performance with circumscribed changes in lateral prefrontal cortex (lPFC) functioning, but evidence of age-related differences in the modulation of lPFC activity by switching is mixed. The current study therefore tested for possible age-related differences in functional connectivity of lPFC with regions that comprise a larger cognitive control network. Functional magnetic resonance imaging (fMRI) data collected from children and adults performing the DCCS were analyzed by means of independent components analysis (ICA). The analysis revealed several important age-related differences in functional connectivity of lPFC. In particular, lPFC was more strongly connected with the anterior cingulate, inferior parietal cortex, and the ventral tegmental area in adults than in children. Theoretical implications are discussed.

► Children and adults administered attentional shifting task while scanned at 4 T. ► Cognitive control network identified by means of independent components analysis. ► Age-related differences in functional connectivity in the identified network assessed. ► Adults showed stronger connectivity between lateral prefrontal, anterior cingulate, and inferior parietal cortex. ► Children showed stronger connectivity between frontal pole and insula.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental Cognitive Neuroscience - Volume 5, July 2013, Pages 40-50
نویسندگان
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