Abstract：
:Medullary on- and off-cell responses to tail heating were studied in lightly anesthetized rats. In 10 animals the electromyographic (EMG) activation of tail muscles was recorded simultaneously with on- or off-cells. The on-cell burst or the off-cell pause always preceded segmental EMG activation by about 0.5 sec. In turn, EMG activation preceded visible tail flick by about 0.09 sec. In 13 other animals ventrobasal thalamic unitary responses were recorded simultaneously with on- and off-cell responses. On-cell bursts or off-cell pauses always preceded thalamic responses by about 0.4 sec. These results support the notion that on- and off-cells play a regulatory role in both segmental and ascending nociceptive transmission.
journal_name
Painjournal_title
Painauthors
Hernández N,López Y,Vanegas Hdoi
10.1016/0304-3959(89)90009-2subject
Has Abstractpub_date
1989-11-01 00:00:00pages
221-230issue
2eissn
0304-3959issn
1872-6623pii
00006396-198911000-00009journal_volume
39pub_type
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