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September 5, 2025Open Access

Ground-truth encoding of self-motion in the primate cerebellar nodulus and uvula

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Authors

KCKathleen E. CullenRMRobyn L. Mildren

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Overview

Observational analysis revealed self-motion encoding in the cerebellar nodulus and uvula in rhesus monkeys, indicating sensory input suppression may not apply.

Key Points

  • Purkinje cells encoded self-motion irrespective of motion source, challenging existing theories.
  • During active tilts, neurons reflected both dynamic motion and orientation relative to gravity.
  • Motor commands without head motion yielded unchanged Purkinje cell activity, indicating no efference copy integration.
  • Findings position the cerebellar nodulus and uvula as key in estimating self-motion in dynamic environments.

Cite This Study

Cullen et al. (2025) studied this question.

synapsesocial.com/papers/68bb421a2b87ece8dc9587a0https://doi.org/10.21203/rs.3.rs-7217009/v1
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