Visual and tactile signal processing for high-order object recognition (C09)

为了探索我们如何感知我们操纵或触摸的物体，我们对非人类灵长类动物的行为进行了电生理记录，并在fMRI静息状态分析中确定了额顶抓握网络的基本连接模式。我们现在计划通过以下方式进一步研究灵长类动物大脑中抓取动作的计划和执行：(I)使用猴子功能磁共振成像和延迟的手抓取任务来探索哪些皮质区域涉及，(Ii)使用感觉皮质区域的化学和光遗传失活来了解它们在行为任务中的参与，以及(Iii)建立一个递归神经网络模型来解释这些区域的视觉和触觉输入信号的处理。

To explore how we perceive objects that we manipulate or touch we performed electro-physiological recordings in behaving non-human primates and identified the essential connectivity patterns of the fronto-parietal grasp network in a fMRI resting state analysis. We now plan to further study the planning and execution of grasping actions in the primate brain by (i) using monkey fMRI and a delayed hand grasping task to explore which cortical areas are involved, (ii) using chemical and optogenetic inactivation of sensory cortical areas to understand their involvement during behavioural tasks, and (iii) developing a recurrent neural network model which will explain the processing of visual and tactile input signals in these areas.