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Neurobiological degeneracy: A key property for functional adaptations of perception and action to constraints| old_uid | 12069 |
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| title | Neurobiological degeneracy: A key property for functional adaptations of perception and action to constraints |
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| start_date | 2016/10/20 |
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| schedule | 10h30-12h |
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| online | no |
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| location_info | EuroMov |
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| summary | Research in the field of motor control following Ecological Dynamics framework has seen the development of new insights about the functional role of movement variability as an emergent response to interacting constraints in order to satisfy task goals. This talk presents how complex neurobiological systems are highly degenerate, providing a surplus of potential motor structures that support perceptual-motor adaptability. Based on performer-environment circular coupling, we explain how complex neurobiological systems can exhibit perceptual-motor adaptability, which overcome the paradox between stability and flexibility. Our hypothesis is that skilled behavior not only demonstrates stability and flexibility, but exhibits a subtle blend between stability and flexibility, reflecting a higher level property called “adaptability”. Adaptability means adapted and adaptive qualities: adapted behavior to a given set of constraints reveals stability against perturbations, while adaptive behavior reflects flexibility to guarantee functional solutions to constraints that dynamically interact. Therefore, adaptability means that skilled behaviors are able to be stable when needed and flexible when needed.
We clarify how this adaptability can emerge from degeneracy and pluri-potentiality properties. Degeneracy refers to the ability of elements that are structurally different to perform the same function or yield the same output. The key difference is how degeneracy is described as many structures-one function relationship while pluri-potentiality is referred to a one structure-many functions relationship. We exemplify how degeneracy and pluri-potentiality properties could reveal ongoing co-adaptation of an individual’s behaviours to dynamically changing, interacting constraints, individually perceived and encountered in climbing tasks. |
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| responsibles | Marin |
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