A central control circuit for encoding perceived food value.
A central control circuit for encoding perceived food value.
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DOI:
10.1126/sciadv.aau9180
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发表时间:
2018-11
期刊:
影响因子:
13.6
通讯作者:
Kemenes G
中科院分区:
文献类型:
--
作者:
Crossley M;Staras K;Kemenes G
Central dopaminergic neurons encoding hunger state alter the perceived value of a potential food stimulus. Hunger state can substantially alter the perceived value of a stimulus, even to the extent that the same sensory cue can trigger antagonistic behaviors. How the nervous system uses these graded perceptual shifts to select between opposed motor patterns remains enigmatic. Here, we challenged food-deprived and satiated Lymnaea to choose between two mutually exclusive behaviors, ingestion or egestion, produced by the same feeding central pattern generator. Decoding the underlying neural circuit reveals that the activity of central dopaminergic interneurons defines hunger state and drives network reconfiguration, biasing satiated animals toward the rejection of stimuli deemed palatable by food-deprived ones. By blocking the action of these neurons, satiated animals can be reconfigured to exhibit a hungry animal phenotype. This centralized mechanism occurs in the complete absence of sensory retuning and generalizes across different sensory modalities, allowing food-deprived animals to increase their perception of food value in a stimulus-independent manner to maximize potential calorific intake.
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影响因子:
16.2
作者:
Burnett CJ;Li C;Webber E;Tsaousidou E;Xue SY;Brüning JC;Krashes MJ
通讯作者:
Krashes MJ
影响因子:
5.7
作者:
Cropper EC;Dacks AM;Weiss KR
通讯作者:
Weiss KR
影响因子:
64.5
作者:
Cohn R;Morantte I;Ruta V
通讯作者:
Ruta V
DOI:
10.1186/2042-1001-2-4
发表时间:
2012-04-17
期刊:
Neural systems & circuits
影响因子:
--
作者:
Benjamin PR
通讯作者:
Benjamin PR
DOI:
10.1073/pnas.97.7.3585
发表时间:
2000-03-28
影响因子:
11.1
作者:
Gillette, R;Huang, RC;Moroz, LL
通讯作者:
Moroz, LL