Cyclic and non-cyclic variations of spinal cord temperature related with temperature regulation in pigeons

1979 ◽  
Vol 380 (3) ◽  
pp. 215-220 ◽  
Author(s):  
Rudolf Graf ◽  
Reinhold Necker
Keyword(s):  
Spinal Cord ◽  
Temperature Regulation ◽  
Spinal Cord Temperature ◽  
Cyclic Variations

Spinal cord, hypothalamic, and air temperature: interaction with arousal states in the marmot

1979 ◽  
Vol 236 (1) ◽  
pp. R107-R116
Author(s):  
V. M. Miller ◽  
F. E. South
Keyword(s):  
Spinal Cord ◽  
Temperature Regulation ◽  
Cortical Surface ◽  
Marmota Flaviventris ◽  
Arousal State ◽  
Future Studies ◽  
Stimulation Period ◽  
Temperature Receptors ◽  
Temperature Manipulation ◽  
Temperature Interaction

Yellow-bellied marmots, Marmota flaviventris, prepared with U-shaped thermodes in the epidural space of the thoracic vertebral canal, a thermode in the preoptic hypothalamus, and cortical surface and hippocampal electrodes, were used to investigate the interaction of arousal states with temperature regulation. It was found that arousal state of the animal influences the thermoregulatory responses initiated in either the spinal cord or hypothalamus. Further, changes in ambient temperature affected both the gain and the threshold of these responses. The interaction of the hypothalamus and spinal cord was not an additive function, however the threshold for shivering of each could be altered by temperature manipulation of the other. Future studies in modeling of temperature regulation should consider the contributions of temperature receptors of the spinal cord and the arousal state of the animal during the stimulation period.

Midbrain neuronal responses to local and spinal cord temperatures

1976 ◽  
Vol 231 (5) ◽  
pp. 1573-1578 ◽  
Author(s):  
T Hori ◽  
Y Harada
Keyword(s):  
Spinal Cord ◽  
Firing Rate ◽  
Reticular Formation ◽  
Single Unit ◽  
Neuronal Responses ◽  
Heating And Cooling ◽  
Midbrain Reticular Formation ◽  
Spinal Cord Temperature ◽  
Temperature Signal ◽  
Cold Sensitive

Water-perfused thermodes were implanted over the lumbothoracic spinal cord and unilaterally in the midbrain of urethan-anesthetized rabbits. Single-unit activities were recorded with steel microelectrodes from the thermosensitive neurons in the midbrain reticular formation (MRF), and the effects of heating and cooling of the spinal cord were studied. Of 38 cold-sensitive MRF neurons studied, 7 units decreased their firing rate upon elevation of spinal cord temperature (Tsc) and 3 units showed the opposite type of response to Tsc. The remaining 28 cold units were not affected by the changes in Tsc between 30 and 43 degrees C. Of 17 warm units, 3 units increased and one unit decreased the firing rate during spinal cord heating. These results suggest that the temperature signal arising from thermosensitive structures in the spinal cord may be transmitted to some of the locally thermosensitive neurons in the MRF.

Effect of spinal cord temperature on carotid blood flow in the Pekin duck

1980 ◽  
Vol 385 (3) ◽  
pp. 269-271 ◽  
Author(s):  
C. Bech ◽  
W. Rautenberg ◽  
B. May ◽  
K. Johansen
Keyword(s):  
Spinal Cord ◽  
Blood Flow ◽  
Pekin Duck ◽  
Carotid Blood Flow ◽  
Spinal Cord Temperature

Dog behaviour as related to spinal cord temperature

1976 ◽  
Vol 32 (1) ◽  
pp. 66-68 ◽  
Author(s):  
M. Cormarèche-Leydier ◽  
M. Cabanac
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Temperature
Sign in / Sign up

Export Citation Format

Share Document