Gerry Leisman
The National Institute for Brain and Rehabilitation Sciences, Israel
Title: Motor-cognitive interactions in the nervous system: Obesity and sedentary behavior dumbs down cognitive function in childhood
Biography
Biography: Gerry Leisman
Abstract
Objectives: To demonstrate that motor and cognitive processes are not separate, but likely share similar evolutionary history.
Methods: We review data that motor processes contribute to cognitive function.
Results: Motor and cognitive processes have dynamical bidirectional relationships. Rodent research has revealed that exercise influences the striatum by increasing dopamine signaling and angiogenesis. In children, higher aerobic fi tness levels are associated with greater hippocampal volumes, superior performance on tasks of attentional and interference control, and elevated event-related brain potential indices of executive function.
Conclusions: We endeavor to integrate the Neurosciences, Cognitive Psychology and Biomechanics in providing a fundamental understanding of the relation between intention, decision-making, and movement in the context of functional connectivity, awareness, attention, and action. Evidence, the SMA is involved in the organization of motor sequences based on plans, the PM is involved in the preparation of a specifi c action, the prefrontal cortex is involved in the initiation and in the temporal organization of action, and the cerebellum is involved in the temporal control of action sequences. All these regions show anticipatory activity in relation to a forthcoming action. Motor cognition relies on a multicomponent system, with many distinct processes occurring simultaneously in diff erent brain regions that support diff erent neural networks. Th e lack of movement represented in offi ce work and youngsters fettered to video games reduces the ability to formulate eff ective connectivities. Because children are becoming increasingly overweight, unhealthy and unfi t, understanding the neurocognitive benefi ts of an active lifestyle during childhood has important public health and educational implications.