کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9429609 | 1297052 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Voltage-sensitive dye imaging of intervibrissal fur-evoked activity in the rat somatosensory cortex
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Voltage-sensitive dye imaging of intervibrissal fur-evoked activity in the rat somatosensory cortex Voltage-sensitive dye imaging of intervibrissal fur-evoked activity in the rat somatosensory cortex](/preview/png/9429609.png)
چکیده انگلیسی
The intervibrissal fur-evoked activity in the rat somatosensory cortex was investigated using high-resolution optical imaging with a voltage-sensitive dye. The optical imaging revealed that the intervibrissal fur representation forms a U-shaped band around the borders of the posteromedial barrel subfield (PMBSF), and that this representation is characterized by a rostral-to-caudal somatotopic organization. When GABAA-mediated inhibition was partially suppressed by treatment with bicuculline, stimulation of the intervibrissal fur elicited spreading of an excitation wave in an area outside the PMBSF. The spreading wave propagated in both directions along the aforementioned U-shaped band of cortex, but barely invaded the center of the PMBSF. These imaging results suggest a distinct subdivision of cortex adjacent to, but outside, the PMBSF in the rat somatosensory cortex; this region receives input from intervibrissal fur, and seems to process its sensory information through well-developed local horizontal connections.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 381, Issue 3, 24 June 2005, Pages 258-263
Journal: Neuroscience Letters - Volume 381, Issue 3, 24 June 2005, Pages 258-263
نویسندگان
Ichiro Takashima, Riichi Kajiwara, Toshio Iijima,