TY - JOUR
T1 - Responses of lateral hypothalamic neurons to simulative hypogravic condition induced by body suspension
AU - Katafuchi, Toshihiko
AU - Yoshimatsu, Hironobu
AU - Oomura, Yutaka
N1 - Funding Information:
We thank Professor A. Simpson and Dr. L. L&&d for help in preparing this manuscript. Supported by the Ministry of Education. Science and Culture Grants-in-Aid (YO) 5637000.5. o&i87035 and 57440085.
PY - 1984/1
Y1 - 1984/1
N2 - In unanesthetized rats, neuronal activity in the lateral hypothalamic area was recorded during horizontal and head-down tilt suspension. When the rat was raised in the horizontally suspended position, 21 of 44 neurons changed activity as follows: immediate increase (7/21, Type I), immediate decrease (3/21, Type II), and gradual decrease (11/21, Type III). When the rat was raised with a head-down tilt position, the responses were suppressed in about half of the neurons tested. These results showed that the LHA neurons altered their activity in response to low G simulation induced by body suspension. Possible signals which induce the changes in the LHA neuronal activity, and an involvement of the LHA in the autonomie reflexes under hypogravic condition are discussed.
AB - In unanesthetized rats, neuronal activity in the lateral hypothalamic area was recorded during horizontal and head-down tilt suspension. When the rat was raised in the horizontally suspended position, 21 of 44 neurons changed activity as follows: immediate increase (7/21, Type I), immediate decrease (3/21, Type II), and gradual decrease (11/21, Type III). When the rat was raised with a head-down tilt position, the responses were suppressed in about half of the neurons tested. These results showed that the LHA neurons altered their activity in response to low G simulation induced by body suspension. Possible signals which induce the changes in the LHA neuronal activity, and an involvement of the LHA in the autonomie reflexes under hypogravic condition are discussed.
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U2 - 10.1016/0361-9230(84)90211-9
DO - 10.1016/0361-9230(84)90211-9
M3 - Article
C2 - 6713213
AN - SCOPUS:0021367714
SN - 0361-9230
VL - 12
SP - 29
EP - 31
JO - Journal of Electrophysiological Techniques
JF - Journal of Electrophysiological Techniques
IS - 1
ER -