期刊
NEURON
卷 83, 期 4, 页码 894-905出版社
CELL PRESS
DOI: 10.1016/j.neuron.2014.06.033
关键词
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资金
- National Institute of General Medical Sciences (NIGMS) [DP1OD003699]
- National Institute of Mental Health (NIMH) [1P50MH094271]
- Human Frontier Science Program (HFSP)
- Charles King Trust/Charles Hood Foundation
- Nancy Lurie Marks Foundation
Insular cortex (IC) contributes to a variety of complex brain functions, such as communication, social behavior, and self-awareness through the integration of sensory, emotional, and cognitive content. How the IC acquires its integrative properties remains unexplored. We compared the emergence of multisensory integration (MSI) in the IC of behaviorally distinct mouse strains. While adult C57BL/6 mice exhibited robust MSI, this capacity was impaired in the inbred BTBR T+tf/J mouse model of idiopathic autism. The deficit reflected weakened gamma-aminobutyric acid (GABA) circuits and compromised postnatal pruning of cross-modal input. Transient pharmacological enhancement by diazepam in BTBR mice during an early sensitive period rescued inhibition and integration in the adult IC. Moreover, impaired MSI was common across three other monogenic models (GAD65, Shank3, and Mecp2 knockout mice) displaying behavioral phenotypes and parvalbumin-circuit abnormalities. Our findings offer developmental insight into a key neural circuit relevant to neuropsychiatric conditions like schizophrenia and autism.
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