Decoupling of motor cortex to movement in Parkinson’s dyskinesia rescued by sub-anaesthetic ketamine - Takeaways - MDSpire

Decoupling of motor cortex to movement in Parkinson’s dyskinesia rescued by sub-anaesthetic ketamine

  • By

  • Abhilasha Vishwanath

  • Mitchell J Bartlett

  • Torsten Falk

  • Stephen L Cowen

  • November 25, 2024

  • 0 min

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  • 1

    Levodopa-induced dyskinesia (LID) disrupts motor cortex activity, leading to a decoupling of neural firing from ongoing movements.

  • 2

    Sub-anesthetic ketamine administration reduces LID and alters motor cortex neuron interactions, enhancing single-unit correlations with movement.

  • 3

    Ketamine does not improve the correlation between gamma-band activity and movement during LID, despite its anti-dyskinetic effects.

  • 4

    The study utilized over 3000 motor cortex neurons from a rat model to assess the effects of ketamine on LID and motor activity.

  • 5

    Findings suggest that dysregulated motor cortex activity in LID allows aberrant movements to emerge, rather than directly triggering them.

Original Source(s)

Decoupling of motor cortex to movement in Parkinson’s dyskinesia rescued by sub-anaesthetic ketamine

  • by Abhilasha Vishwanath, Mitchell J Bartlett, Torsten Falk, Stephen L Cowen

  • November 25, 2024

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