Conference proceeding
Primitive based biomechanical simulations predict feedback gating
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings, 1
01 Apr 2014
Abstract
Conference Title: 2014 40th Annual Northeast Bioengineering Conference (NEBEC) Conference Start Date: 2014, April 25 Conference End Date: 2014, April 27 Conference Location: Boston, MA, USA Sensorimotor integration during spinal reflexes is discontinuous and context based unlike previously proposed continuous feedback models. Cutaneous and proprioceptive modalities play a key role in planning and execution of the hindlimb wipe reflex in adult spinal bullfrogs (Rana catesbeiana). However the temporal dynamics of this integration is still unclear. Studies have suggested that intrinsic musculoskeletal properties can correct for path deviations caused by pulsed force perturbations, without the need for active corrections. In this study, we test the efficacy of these intrinsic properties throughout the physiological workspace of the frog by employing a computational biomechanical simulation paradigm built in Opensim. Our results suggest that although viscoelastic effects lead to better convergence in trajectories, they are not as effective throughout the workspace. However targeting performance is significantly improved by contextually gating the proprioceptive feedback. These results are in agreement with observed activity in the frogs and suggest that reflex gating may be an important component of spinal sensorimotor reflex control.
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Details
- Title
- Primitive based biomechanical simulations predict feedback gating
- Creators
- Arun RamakrishnanSimon F Giszter
- Publication Details
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings, 1
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- College of Nursing and Health Professions; Neurobiology and Anatomy
- Identifiers
- 991019170599504721