| RRC ID |
71473
|
| 著者 |
Hirabayashi T, Nagai Y, Hori Y, Inoue KI, Aoki I, Takada M, Suhara T, Higuchi M, Minamimoto T.
|
| タイトル |
Chemogenetic sensory fMRI reveals behaviorally relevant bidirectional changes in primate somatosensory network.
|
| ジャーナル |
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.
|
| 巻・号 |
109(20)
|
| ページ |
3312-3322.e5
|
| 公開日 |
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
|
| リソース情報 |
| ニホンザル |
|
