Statistical investigation of the effect of local temperature changes on posterior hypothalamic single unit activity

1979 ◽  
Vol 10 (4) ◽  
pp. 262-267 ◽  
Author(s):  
N. D. Chernova ◽  
L. P. Dymnikova ◽  
D. Kushakov
Keyword(s):  
Unit Activity ◽  
Single Unit ◽  
Statistical Investigation ◽  
Local Temperature ◽  
Single Unit Activity ◽  
Temperature Changes

Effects of ouabain on neuronal thermosensitivity in hypothalamic tissue slices

1989 ◽  
Vol 257 (1) ◽  
pp. R21-R28
Author(s):  
M. C. Curras ◽  
J. A. Boulant
Keyword(s):  
Firing Rate ◽  
Neuronal Activity ◽  
Unit Activity ◽  
Single Unit ◽  
Single Unit Activity ◽  
Tissue Slices ◽  
Temperature Changes ◽  
Cold Sensitive ◽  
Hypothalamic Tissue

To determine the role of the electrogenic Na+-K+ pump in neuronal thermosensitivity, single-unit activity was recorded in rat hypothalamic tissue slices before, during, and after perfusions containing 10(-5) or 10(-6) M ouabain, a specific pump inhibitor. Most neurons were recorded in the preoptic-anterior hypothalamus. Some neurons were also tested with high magnesium-low calcium perfusions to determine ouabain's effects on neuronal activity during synaptic blockade. When the neurons were characterized according to thermosensitivity, 24% were warm sensitive, 8% were cold sensitive, and 68% were temperature insensitive. Ouabain increased the firing rate of 60% of all neurons. Ouabain did not reduce the thermosensitivity of cold-sensitive and warm-sensitive neurons; however, temperature-insensitive neurons became more warm sensitive during ouabain perfusion. This increase in warm sensitivity did not occur with ouabain plus high Mg2+-low Ca2+ perfusion, suggesting that Ca2+ is important in this response. These results indicate that the Na-K pump is not responsible for the thermosensitivity of hypothalamic cold-sensitive or warm-sensitive neurons; however, this pump may be actively employed by many neurons that remain insensitive to temperature changes.

Effect of Eye Opening on Single-Unit Activity and Local Field Potentials in the Subthalamic Nucleus

2017 ◽  
Vol 20 (5) ◽  
pp. 471-477 ◽  
Author(s):  
Arun Chockalingam ◽  
Abigail Belasen ◽  
Nita Chen ◽  
Adolfo Ramirez-Zamora ◽  
Youngwon Youn ◽  
...  
Keyword(s):  
Subthalamic Nucleus ◽  
Local Field ◽  
Unit Activity ◽  
Single Unit ◽  
Local Field Potentials ◽  
Single Unit Activity ◽  
Field Potentials ◽  
Eye Opening

Effects of electrical stimulation of the lateral habenula on single-unit activity of raphe neurons

1979 ◽  
Vol 65 (2) ◽  
pp. 326-342 ◽  
Author(s):  
W.C. Stern ◽  
A. Johnson ◽  
J.D. Bronzino ◽  
P.J. Morgane
Keyword(s):  
Electrical Stimulation ◽  
Unit Activity ◽  
Single Unit ◽  
Single Unit Activity ◽  
Lateral Habenula ◽  
Raphe Neurons ◽  
Stimulation Of

Patterns of single unit activity in sympathetic postganglionic nerves

1980 ◽  
Vol 1 (3) ◽  
pp. 305-312 ◽  
Author(s):  
Mark Kollai ◽  
Kiyomi Koizumi
Keyword(s):  
Unit Activity ◽  
Single Unit ◽  
Single Unit Activity
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