Cerebellar response to alternating tone sequences

D. Paschall, M. C. Baker

Research output: Contribution to journalConference article


This paper describes a preliminary investigation into the contributions of the cerebellum in forming complex auditory perceptions. It is hypothesized that the cerebellum plays an important role in the interpretation of timing cues in auditory signals. A series of six tones forming either one or two perceptual streams/groups are used to investigate the response of the cerebellum. The tone sequence is presented in both fast and slow durations. Evoked potential/EEG measurements were taken using a 9 - electrode montage in the cerebellum region, outside of the typical 10-20 electrode arrangement. The stimuli consist of similar frequencies and intensities, but evoke very different perceptual interpretations depending on the overall rate of the tone sequence duration. For the faster repetition rate, the cerebellum response was observed to be oscillatory in nature, with amplitude variations appearing to be both linear and non-linear functions of stimulus frequency. For the slower repetition rate, the oscillatory response was suppressed.

Original languageEnglish
Pages (from-to)2004-2005
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
StatePublished - Dec 1 2002
EventProceedings of the 2002 IEEE Engineering in Medicine and Biology 24th Annual Conference and the 2002 Fall Meeting of the Biomedical Engineering Society (BMES / EMBS) - Houston, TX, United States
Duration: Oct 23 2002Oct 26 2002



  • Auditory evoked potential
  • Cerebellum
  • EEG

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