Reference - Detail
| RRC ID | 71473 |
|---|---|
| Author | Hirabayashi T, Nagai Y, Hori Y, Inoue KI, Aoki I, Takada M, Suhara T, Higuchi M, Minamimoto T. |
| Title | Chemogenetic sensory fMRI reveals behaviorally relevant bidirectional changes in primate somatosensory network. |
| Journal | Neuron |
| Abstract |
Concurrent genetic neuromodulation and functional magnetic resonance imaging (fMRI) in primates has provided a valuable opportunity to assess the modified brain-wide operation in the resting state. However, its application to link the network operation with behavior still remains challenging. Here, we combined chemogenetic silencing of the primary somatosensory cortex (SI) with tactile fMRI and related behaviors in macaques. Focal chemogenetic silencing of functionally identified SI hand region impaired grasping behavior. The same silencing also attenuated hand stimulation-evoked fMRI signal at both the local silencing site and the anatomically and/or functionally connected downstream grasping network, suggesting altered network operation underlying the induced behavioral impairment. Furthermore, the hand region silencing unexpectedly disinhibited foot representation with accompanying behavioral hypersensitization. These results demonstrate that focal chemogenetic silencing with sensory fMRI in macaques unveils bidirectional network changes to generate multifaceted behavioral impairments, thereby opening a pivotal window toward elucidating the causal network operation underpinning higher brain functions in primates. |
| Volume | 109(20) |
| Pages | 3312-3322.e5 |
| Published | 2021-10-20 |
| DOI | 10.1016/j.neuron.2021.08.032 |
| PII | S0896-6273(21)00649-8 |
| PMID | 34672984 |
| MeSH | Animals Foot Functional Neuroimaging Genetic Techniques* Hand Hand Strength* Macaca fuscata Magnetic Resonance Imaging Neural Pathways / diagnostic imaging Neural Pathways / metabolism Neural Pathways / physiology Primates Somatosensory Cortex / diagnostic imaging* Somatosensory Cortex / metabolism Somatosensory Cortex / physiology Touch* |
| IF | 14.415 |
| Altmetric score |
オルトメトリクス指標項目
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| The most frequently cited source | X(Twitter) |
| Total number of mentions | 22 |
| Altmetric score changes over past 6months | 0.0 |
| Resource | |
| Japanese macaques | |