Department of Neurosciences, KU Leuven, 3000 Leuven, Belgium; Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium.
Hertie Institute for Clinical Brain Research and Center for Integrative Neuroscience, University Clinic Tuebingen, 72074 Tuebingen, Germany.
Cell Rep. 2023 Dec 26;42(12):113438. doi: 10.1016/j.celrep.2023.113438. Epub 2023 Nov 22.
The temporal cortex represents social stimuli, including bodies. We examine and compare the contributions of dynamic and static features to the single-unit responses to moving monkey bodies in and between a patch in the anterior dorsal bank of the superior temporal sulcus (dorsal patch [DP]) and patches in the anterior inferotemporal cortex (ventral patch [VP]), using fMRI guidance in macaques. The response to dynamics varies within both regions, being higher in DP. The dynamic body selectivity of VP neurons correlates with static features derived from convolutional neural networks and motion. DP neurons' dynamic body selectivity is not predicted by static features but is dominated by motion. Whereas these data support the dominance of motion in the newly proposed "dynamic social perception" stream, they challenge the traditional view that distinguishes DP and VP processing in terms of motion versus static features, underscoring the role of inferotemporal neurons in representing body dynamics.
颞叶皮层代表社交刺激，包括身体。我们使用功能磁共振成像引导的恒河猴实验，在颞上沟前背侧支（背侧斑[DP]）和前颞下皮质（腹侧斑[VP]）的斑片之间，检查和比较动态和静态特征对移动猴子身体的单个单位反应的贡献。两个区域内的动态反应都有所不同，DP 更高。VP 神经元对动态身体的选择性与来自卷积神经网络和运动的静态特征相关。DP 神经元的动态身体选择性不能用静态特征来预测，但主要由运动决定。虽然这些数据支持了在新提出的“动态社会感知”流中运动的主导地位，但它们挑战了传统的观点，即根据运动与静态特征来区分 DP 和 VP 处理，强调了颞下神经元在表示身体动态方面的作用。
