||Neuronal and behavioural modulations by pathway-selective optogenetic stimulation of the primate oculomotor system.
Inoue, Ken-ichi ,
Takada, MasahikoMatsumoto, Masayuki
62015-09-21 , Nature Publishing Group
霊長類の脳神経回路を光で操作する手法の開発に成功 -霊長類が有する高次脳機能の解明や精神・神経疾患の治療への応用に期待-. 京都大学プレスリリース. 2015-09-24.
Optogenetics enables temporally and spatially precise control of neuronal activity in vivo. One of the key advantages of optogenetics is that it can be used to control the activity of targeted neural pathways that connect specific brain regions. While such pathway-selective optogenetic control is a popular tool in rodents, attempts at modulating behaviour using pathway-selective optogenetics have not yet been successful in primates. Here we develop a methodology for pathway-selective optogenetics in macaque monkeys, focusing on the pathway from the frontal eye field (FEF) to the superior colliculus (SC), part of the complex oculomotor network. We find that the optogenetic stimulation of FEF projections to the SC modulates SC neuron activity and is sufficient to evoke saccadic eye movements towards the response field corresponding to the stimulation site. Thus, our results demonstrate the feasibility of using pathway-selective optogenetics to elucidate neural network function in primates.