Neural pattern similarity between contra- and ipsilateral movements in high-frequency band of human electrocorticograms.

摘要: The cortical motor areas are activated not only during contralateral limb movements but also ipsilateral movements. Although these activities have been observed in several brain imaging studies, their functional role is poorly understood. Due to its high temporal resolution and low susceptibility artifacts from body movements, the electrocorticogram (ECoG) an advantageous measurement method for assessing human function of behaviors. Here, we demonstrate that contra- share a similarity high-frequency band ECoG signals. signals were measured unilateral sensorimotor cortex while patients conducted self-paced different parts, or side. movement categories (wrist, shoulder, ankle) decoded as accurately those spatial patterns precentral area (the primary premotor areas). decoder, trained generalized vice versa, confirmed activity related similar ones area. Our results suggest might be functionally coupled control limbs, even