کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6803010 | 1433520 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Supplementary motor area-primary motor cortex facilitation in younger but not older adults
ترجمه فارسی عنوان
تسریع در ناحیه قلب مغز استخوان موتور اضافی در افراد جوانتر اما نه سالمند
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کلمات کلیدی
منطقه موتور تکمیلی، کنترل موتور، سالخورده، تحریک مغناطیسی ترانس مغناطیسی، اتصال به عملکرد تسهیلات،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
سالمندی
چکیده انگلیسی
Growing evidence implicates a decline in white matter integrity in the age-related decline in motor control. Functional neuroimaging studies show significant associations between functional connectivity in the cortical motor network, including the supplementary motor area (SMA), and motor performance. Dual-coil transcranial magnetic stimulation studies show facilitatory connections between SMA and the primary motor cortex (M1) in younger adults. Here, we investigated whether SMA-M1 facilitation is affected by age and whether the strength of SMA-M1 facilitation is associated with bilateral motor control. Dual-coil transcranial magnetic stimulation was used to measure SMA-M1 connectivity in younger (NÂ = 20) and older adults (NÂ = 18), and bilateral motor control was measured with the assembly subtest of the Purdue Pegboard and clinical measures of dynamic balance. SMA-M1 facilitation was seen in younger but not older adults, and a significant positive association was found between SMA-M1 facilitation and bimanual performance. These results show that SMA-M1 facilitation is reduced in older adults compared to younger adults and provide evidence of the functional importance of SMA-M1 facilitation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neurobiology of Aging - Volume 64, April 2018, Pages 85-91
Journal: Neurobiology of Aging - Volume 64, April 2018, Pages 85-91
نویسندگان
Peta E. Green, Michael C. Ridding, Keith D. Hill, John G. Semmler, Peter D. Drummond, Ann-Maree Vallence,