کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4330859 1614274 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Changes in cortically induced rhythmic jaw movements after lesioning of the red nucleus in rats
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Changes in cortically induced rhythmic jaw movements after lesioning of the red nucleus in rats
چکیده انگلیسی
We study whether the red nucleus (RN) lesion can modify rhythmic jaw movements. Rhythmic jaw movements were induced by repetitive electrical stimulation of the two cortical masticatory areas (area A: the orofacial motor cortex; area P: the insular cortex). Lesions made by applied electric current in the RN were found to influence the rhythmic jaw movements induced by stimulation of A-area. The distance between the maximum and minimum jaw-opening positions was less after the lesions were induced. The duration of rhythmic jaw movements was shorter after lesioning. In contrast, lesions of the RN did not influence rhythmic jaw movements induced by stimulation of the P-area. Next, kainic acid (0.2 μl, lesion group) or phosphate-buffered saline (0.2 μl, control group) was injected into the left RN. Three days after injection, rhythmic jaw movements were induced by repetitive electrical stimulation of the A-area. The distance between the maximum and minimum jaw-opening positions in the lesion group was smaller than in the control group. The rhythmic jaw movements of the lesion group had shorter duration than the control group. These results suggest that the RN is involved in the modification of jaw movements induced by stimulation of the A-area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1165, 24 August 2007, Pages 60-70
نویسندگان
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