کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3045157 1185016 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Intermanual transfer of sensorimotor memory for grip force when lifting objects: The role of wrist angulation
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
Intermanual transfer of sensorimotor memory for grip force when lifting objects: The role of wrist angulation
چکیده انگلیسی

ObjectiveTo investigate the mechanisms underlying the intermanual transfer of sensorimotor memory when lifting an object.MethodsTwenty healthy subjects grasped and lifted an object with constant mechanical properties with the right hand (RH) first and then with the left hand (LH). Ten of the subjects lifted the object with the RH in a regular wrist angulation (WA), followed by lifts with the LH in a regular WA. The remaining 10 subjects lifted the object with the RH in a hyper-flexed WA, followed by lifts with the LH in a regular WA.ResultsSubjects generated greater peak grip force (GF) rates, grip and lift forces when lifting the object with the wrist in a regular WA compared to lifts with the wrist in hyper-flexion. Importantly, subjects transferred the predictive scaling of GF from the RH to the LH, regardless of the WA.ConclusionsBiomechanical properties of the object do not seem to be used by the CNS as a first line information to evaluate GF when handling an object or transferring information about the grasp to the opposite hemisphere.SignificanceThe predictive scaling of GF rather reflects an internal sense of effort than an internal representation of the mechanical object properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Neurophysiology - Volume 121, Issue 3, March 2010, Pages 402–407
نویسندگان
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