کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6273329 | 1614796 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Habituation behavior of the medium-latency reflex over the anterior tibial muscle after electrical stimulation of the sural nerve
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کلمات کلیدی
MLRSLRCMAPsLLREPSPsTibialis Anterior - Tibialis قدامیstandard deviation - انحراف معیارFacilitation - تسهیلاتStartle reflex - رفلکس شروعLong-latency reflex - رفلکس طولانی مدت تاخیرHabituation - عادی شدن یا خوگیریMotor response - پاسخ موتورcompound muscle action potentials - پتانسیل عمل عضله مرکبexcitatory postsynaptic potentials - پتانسیل های پست پراکنده تحریک پذیر
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Habituation behavior of the medium-latency reflex over the anterior tibial muscle after electrical stimulation of the sural nerve Habituation behavior of the medium-latency reflex over the anterior tibial muscle after electrical stimulation of the sural nerve](/preview/png/6273329.png)
چکیده انگلیسی
Over human leg muscles, three motor responses (MR) can commonly be elicited, namely short-latency reflex (SLR), medium-latency reflex (MLR), and long-latency reflex (LLR). The MLR is less well understood than SLR and LLR. As the response to subsequent stimuli may be used to characterize central influences of an MR, we were interested, whether the MLR differs from SLR and LLR with respect to its habituation and facilitation behavior. MR were examined over the anterior tibial (TA) muscle at different contraction levels after electrical single or train stimuli (time intervals of 3 ms) over the ipsilateral sural nerve. Furthermore, MR were selectively averaged after each of four subsequent stimuli (1 Hz, 0.4 Hz, trains-of-3). After single stimuli, the peak latency values were 46.2 ± 2.3 ms, 88.0 ± 5.8 ms (MLR), and 131.7 ± 22.2 ms (LLR). All three MR gained similarly strong and significantly in amplitude when up to 10 kg of weight was loaded compared with no weight load. After train stimuli, the LLR but not SLR and MLR gained significantly in amplitude as compared with single stimuli. Different to SLR and LLR, the MLR showed significant habituation behavior at a stimulus repetition rate of 1 Hz but not of 0.4 Hz. Thus, inhibitory interneurons seem to be involved in the MLR pathway.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 280, 7 November 2014, Pages 111-120
Journal: Neuroscience - Volume 280, 7 November 2014, Pages 111-120
نویسندگان
S. Alaid, D. Hanke, M. Kornhuber,