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Related Experiment Videos

On the relation between sensory input and action.

Jonathan Cole

    Journal of Motor Behavior
    |July 21, 2004
    PubMed
    Summary
    This summary is machine-generated.

    Sensory feedback is crucial for initiating movement, not just for refining it. Even after healing, sensory loss can make it difficult to translate intention into action, suggesting a subconscious role for sensory input.

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    Area of Science:

    • Neuroscience
    • Motor Control
    • Sensory Physiology

    Background:

    • Recent models emphasize sensory return's role in feedforward control and state comparison.
    • This study explores the less-understood impact of sensory feedback on movement initiation.
    • Investigates the transition from intention to action in individuals with sensory impairments.

    Discussion:

    • Three cases illustrate difficulties in initiating movement after sensory loss (acute withdrawal, meningitis, immobilization).
    • Participants reported a subjective experience of 'forgetting how to move,' despite physical recovery.
    • Highlights the potential for subconscious sensory feedback to be essential for motor execution.

    Key Insights:

    • Sensory feedback plays a vital role in the fundamental process of initiating voluntary movement.

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  • The peripheral sensory apparatus may provide essential, non-conscious input for motor commands.
  • Motor intention-to-action pathways are surprisingly dependent on intact sensory feedback loops.

    • Outlook:

    • Further research is needed to elucidate the precise neural mechanisms linking sensory feedback to movement initiation.
    • Understanding these mechanisms could inform rehabilitation strategies for motor disorders.
    • Exploring the role of subconscious sensory processing in motor control is a promising avenue.