Abstract：
:The present study investigated differences between vestibulo-somatic and vestibulo-sympathetic reflexes, along with differences between somatic and autonomic spino-bulbo-spinal (SBS) reflexes in chloralose-urethane anesthetized cats. Electrical stimulation was applied to the vestibular nerve (V) for a duration of 0.3 ms. The potential responses in the sympathetic renal nerve (RN) and somatic lumbar nerve were recorded simultaneously. Responses were recorded for a variety of conditioning stimulus to testing stimulus intervals, and the results were plotted to form a recovery curve. The recovery curve for the test response from the somatic nerve was very different from that of the sympathetic nerve. Following transection of the lateral part of the thoracic cord, in the case of the sympathetic renal nerve, recorded responses were still present on vestibular and lumbar nerve stimulation, whereas in the case of the vestibulo-somatic and somatic SBS reflexes, the reflex response had disappeared after transection. These findings suggest that sympathetic and somatic reactions as a result of vestibular stimulation have different descending pathways in the spinal cord, and that their physiological characteristics are different.
journal_name
Brain Resjournal_title
Brain researchauthors
Miyazawa T,Ishikawa Tdoi
10.1016/0006-8993(85)90221-5subject
Has Abstractpub_date
1985-05-20 00:00:00pages
297-302issue
2eissn
0006-8993issn
1872-6240pii
0006-8993(85)90221-5journal_volume
334pub_type
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