Nonlinear neural circuit model accounts for nonhuman primates’ choice behaviour and LIP neuronal activity in perceptual decisions uncoupled from motor actions
Brendan Lenfesty, Abdoreza Asadpour, Michael N. Shadlen, Saugat Bhattacharyya, Shushruth Shushruth, KongFatt Wong-Lin · FENS Forum 2024
Perceptual decision-making has often been studied using sensory-to-motor transformation tasks. Shushruth et al. (2022) showed in a visual motion discrimination task (Fig. A) that neurons in the lateral intraparietal cortex (LIP) of two monkeys exhibited delayed evidence-based responses, activating only upon choice target onset after the motion stimulus (Fig. B-C). The LIP neurons were hypothesised to have retrieved information via short-term memory. However, how this was achieved remains unclear.In this work, we extended the nonlinear mean-field model of Wong and Wang (2006) by incorporating a
ePoster · Neuroscience