Motor imagery activates the cerebellum regionally: a SPECT rCBF study with 99mTc-HMPAO

Erik Ryding, Jean Decety, Hans Sjöholm, Georg Stenberg, David H. Ingvar

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118 Citations (Scopus)


Our earlier findings of a cerebellar activation during motor imagery (Brain Res., 535 (1990) 313-317) were made with a technique with low regional resolution. Therefore we could not elucidate the distribution of the cerebellar activation. In the present study the cerebellar regional cerebral blood flow (rCBF) changes during motor imagery (MI) was measured with a single photon emission computed tomography (SPECT) rCBF method (99mTc-HMPAO) with higher regional resolution during (1) silent counting, and (2) MI (which included silent counting) in 17 normal subjects. Comparing the SPECT results from the two tasks revealed the regional activations during MI. We confirmed that the most pronounced regional activations during MI were found in the cerebellum, especially in its infero-lateral parts on both sides.

Original languageEnglish
Pages (from-to)94-99
Number of pages5
JournalCognitive Brain Research
Issue number2
Publication statusPublished - 1993
Externally publishedYes

Swedish Standard Keywords

  • Psychology (50101)
  • Social Sciences (5)


  • *Imagination
  • Adult
  • Cerebellum/blood supply/*physiology/radionuclide imaging
  • Cerebrovascular Circulation/physiology
  • Emission-Computed
  • Female
  • Human
  • Male
  • Non-U.S. Gov't
  • Organotechnetium Compounds
  • Oximes
  • Psychomotor Performance/physiology
  • Single-Photon
  • Support
  • Tomography


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