Evidence of dynamic top-down influences in the parieto-motor network during visuomotor behavior
Georgios Bardanikas, Shrabasti Jana, Nicolas Meirhaeghe, Frederic Barthelemy, Alexa Riehle, Sonja Grün, Andrea Brovelli, Thomas Brochier · FENS Forum 2024
It has been hypothesized that feedback connections originating from motor areas exert top-down influences on the posterior parietal cortex during visuomotor behavior. However, a comprehensive understanding of the dynamic reciprocal flow of information within the fronto-parietal network is still lacking. This study aims to investigate whether fronto-parietal communication can be modulated by cognitive components of motor preparation such as anticipation of the appearance of a visual target. To this end, two rhesus macaques were trained in a visuomotor sequential reaching task. Critically, the s