論文 - 詳細
| RRC ID | 81591 |
|---|---|
| 著者 | Ali MA, Lischka K, Preuss SJ, Trivedi CA, Bollmann JH. |
| タイトル | A synaptic corollary discharge signal suppresses midbrain visual processing during saccade-like locomotion. |
| ジャーナル | Nat Commun |
| Abstract |
In motor control, the brain not only sends motor commands to the periphery, but also generates concurrent internal signals known as corollary discharge (CD) that influence sensory information processing around the time of movement. CD signals are important for identifying sensory input arising from self-motion and to compensate for it, but the underlying mechanisms remain unclear. Using whole-cell patch clamp recordings from neurons in the zebrafish optic tectum, we discovered an inhibitory synaptic signal, temporally locked to spontaneous and visually driven locomotion. This motor-related inhibition was appropriately timed to counteract visually driven excitatory input arising from the fish's own motion, and transiently suppressed tectal spiking activity. High-resolution calcium imaging revealed localized motor-related signals in the tectal neuropil and the upstream torus longitudinalis, suggesting that CD enters the tectum via this pathway. Together, our results show how visual processing is suppressed during self-motion by motor-related phasic inhibition. This may help explain perceptual saccadic suppression observed in many species. |
| 巻・号 | 14(1) |
| ページ | 7592 |
| 公開日 | 2023-11-23 |
| DOI | 10.1038/s41467-023-43255-6 |
| PII | 10.1038/s41467-023-43255-6 |
| PMID | 37996414 |
| PMC | PMC10667368 |
| MeSH | Animals Locomotion Saccades* Superior Colliculi / physiology Visual Pathways / physiology Visual Perception / physiology Zebrafish* |
| IF | 12.121 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
|
| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 31 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ゼブラフィッシュ | Tg(brn3a-hsp70:GFP)rw0110b |