Tuning arousal with optogenetic modulation of locus coeruleus neurons.
Tuning arousal with optogenetic modulation of locus coeruleus neurons.
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DOI:
10.1038/nn.2682
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发表时间:
2010-12
影响因子:
25
通讯作者:
de Lecea, Luis
中科院分区:
文献类型:
--
作者:
Carter, Matthew E.;Yizhar, Ofer;Chikahisa, Sachiko;Nguyen, Hieu;Adamantidis, Antoine;Nishino, Seiji;Deisseroth, Karl;de Lecea, Luis
Neural activity in the noradrenergic locus coeruleus correlates with periods of wakefulness and arousal. However, whether tonic or phasic activity in these neurons is necessary or sufficient to induce behavioral state transitions and promote long-term arousal is unresolved. We used optogenetic tools in mice to demonstrate a frequency-dependent, causal relationship between locus coeruleus firing, cortical activity, sleep-to-wake transitions, and general locomotor arousal. Surprisingly, we also found that sustained, high-frequency stimulation of the locus coeruleus at frequencies 5 Hz and above caused reversible behavioral arrests. These results suggest that the locus coeruleus is finely tuned to regulate organismal arousal and that bursts of noradrenergic over-excitation cause behavioral attacks similar to those observed in neuropsychiatric disorders.
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