کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4321119 1291573 2014 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Intrinsic and Task-Evoked Network Architectures of the Human Brain
ترجمه فارسی عنوان
معماری شبکه های ذاتی و وظیفه مغز انسان
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
چکیده انگلیسی


• There is an “intrinsic” functional network architecture present across many tasks
• The intrinsic architecture is highly similar to the resting-state architecture
• Tasks modify the intrinsic architecture to produce “evoked” network architectures
• Task-evoked changes common across tasks form a task-general network architecture

SummaryMany functional network properties of the human brain have been identified during rest and task states, yet it remains unclear how the two relate. We identified a whole-brain network architecture present across dozens of task states that was highly similar to the resting-state network architecture. The most frequent functional connectivity strengths across tasks closely matched the strengths observed at rest, suggesting this is an “intrinsic,” standard architecture of functional brain organization. Furthermore, a set of small but consistent changes common across tasks suggests the existence of a task-general network architecture distinguishing task states from rest. These results indicate the brain’s functional network architecture during task performance is shaped primarily by an intrinsic network architecture that is also present during rest, and secondarily by evoked task-general and task-specific network changes. This establishes a strong relationship between resting-state functional connectivity and task-evoked functional connectivity—areas of neuroscientific inquiry typically considered separately.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 83, Issue 1, 2 July 2014, Pages 238–251
نویسندگان
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