[Temperature dependence of neuronal activity in hypothalamic and hippocampal slices of the guinea-pig].
Unit activity in slices of the hippocampus and medial preoptic area of the hypothalamus of guinea-pigs was extracellularly recorded under conditions of temperature changes. Seven out of nineteen hypothalamic neurons showed changes in the firing rate at threshold temperatures of 36-38 degrees C. In the suprathreshold range the activity of these neurons depended on the temperature level. It is suggested that such neurons may form a sensory part of the system controlling brain temperature within a narrow (1-2 degrees C) range. The pyramidal layer cells of the control structure (hippocampus) were insensitive to the temperature level within 32-40 degrees C.
Vasilenko
V Iu
VIu
Beliavskiĭ
E M
EM
Gurin
V N
VN
D000818:Animals; D006168:Guinea Pigs; D006624:Hippocampus / Q000502:physiology*; D007031:Hypothalamus / Q000502:physiology*; D066298:In Vitro Techniques; D008564:Membrane Potentials; D009474:Neurons / Q000502:physiology*; D011301:Preoptic Area / Q000502:physiology; D013696:Temperature
Zavisimost' aktivnosti neĭronov ot temperatury v srezakh gipotalamusa i gippokampa morskoĭ svinki.