Spatial frequency tuning of motor responses reveals differential contribution of dorsal and ventral systems to action comprehension.

ABSTRACT: Understanding object-directed actions performed by others is central to everyday life. This ability is thought to rely on the interaction between the dorsal action observation network (AON) and a ventral object recognition pathway. On this view, the AON would encode action kinematics, and the ventral pathway, the most likely intention afforded by the objects. However, experimental evidence supporting this model is still scarce. Here, we aimed to disentangle the contribution of dorsal vs. ventral pathways to action comprehension by exploiting their differential tuning to low-spatial frequencies (LSFs) and high-spatial frequencies (HSFs). We filtered naturalistic action images to contain only LSF or HSF and measured behavioral performance and corticospinal excitability (CSE) using transcrani

SUBMITTER: Amoruso L 

PROVIDER: S-EPMC7293594 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature