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Effects of acoustic stimuli on neuronal activity in the auditory cortex of the rat
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Spontaneous activity of cortical neurons exhibits alternative fluctuations of membrane potential consisting of phased depolarization called "up-state" and persistent hyperpolarization called "down-state" during slow wave sleep and anesthesia. Here, we examined the effects of sound stimuli (noise bursts) on neuronal activity by intracellular recording in vivo from the rat auditory cortex (AC). Noise bursts increased the average time in the up-state by 0.81±0.65 s (rang e, 0.27-1.74 s) related to a 10 s recording duration. The rise times of the spontaneous up-events averaged 69.41±18.04 ms (range, 40.10-119.21 ms), while those of the sound-evoked up-events were significantly shorter (p
Title: Effects of acoustic stimuli on neuronal activity in the auditory cortex of the rat
Description:
Spontaneous activity of cortical neurons exhibits alternative fluctuations of membrane potential consisting of phased depolarization called "up-state" and persistent hyperpolarization called "down-state" during slow wave sleep and anesthesia.
Here, we examined the effects of sound stimuli (noise bursts) on neuronal activity by intracellular recording in vivo from the rat auditory cortex (AC).
Noise bursts increased the average time in the up-state by 0.
81±0.
65 s (rang e, 0.
27-1.
74 s) related to a 10 s recording duration.
The rise times of the spontaneous up-events averaged 69.
41±18.
04 ms (range, 40.
10-119.
21 ms), while those of the sound-evoked up-events were significantly shorter (p.
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