A dual-pathway model for motor cognition and sensorimotor integration: an fMRI-guided DTI study using probabilistic fiber tracking with connected weighted map combination

Introduction: Cortical motor functions are organized within a large-scale fronto-parietal network connecting prefrontal, frontal and parietal areas. The parietal lobe processes visual environmental and somatosensory signals and integrates them with an internal forward model of action consequences, subserving spatial encoding, object feature extraction and movement guidance. Information is transmitted to the frontal lobe via a rostro-caudal organized network mainly using the superior longitudinal fascicle (SLF). In premotor cortex, information is processed and translated into motor programs for action execution,…