Driving Hebbian plasticity over ventral premotor-motor projections transiently enhances motor resonance

Making sense of others' actions relies on the activation of an action observation network (AON), which maps visual information about observed actions onto the observer's motor system. This motor resonance process manifests in the primary motor cortex (M1) as increased corticospinal excitability finely tuned to the muscles engaged in the observed action. Motor resonance in M1 is facilitated by projections from higher-order AON regions. However, whether manipulating the strength of AON-to-M1 connectivity affects motor resonance remains unclear.

Source: BRAIN STIMULATION: Basic, Translational, and Clinical Research in Neuromodulation - February 20, 2024 Category: Neurology Authors: Emilio Chiappini, Sonia Turrini, Marco Zanon, Mattia Marangon, Sara Borgomaneri, Alessio Avenanti Source Type: research