Intraneuronal chloride levels encode tiredness in cortex
Intraneuronal chloride levels encode tiredness in cortex
复制标题
神经元内氯化物水平编码皮质的疲劳
DOI:
10.1101/2021.05.14.444189
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Alfonsa H
中科院分区:
文献类型:
--
作者:
Alfonsa H
Continuous periods of wakefulness are associated with reduced performance levels due to the build-up of sleep pressure in active regions of the brain. These effects manifest as use-dependent changes in cortical network activity and the mechanisms underlying these changes represent targets for overcoming the cognitive effects of tiredness. Here we reveal a central role for intraneuronal chloride levels, which increase in a use-dependent manner during waking, and reduce the strength of local synaptic inhibition in mouse cortex. Activity-dependent increases in chloride account for spatial and temporal features of sleep pressure, they underlie cortical network oscillations in the sleep-deprived state, and targeting chloride regulation in cortex can rescue performance levels when tired. These findings provide a missing link between sleep-wake history, synaptic transmission and cortical dynamics.One-Sentence SummaryThe effects of sleep pressure on cortical function are caused by use-dependent changes in chloride-mediated synaptic inhibition.
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