Cortical distribution of EEG activity for component processes during mental rotation

Harwant S. Gill, Michael W. O'Boyle, Julie Hathaway

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


Alpha power (8-12 Hz) was monitored over the frontal, temporal, parietal and occipital lobes of the left and right cerebral hemispheres while participants mentally rotated three-dimensional shapes to match a specified target. By comparing the activational patterns generated during three experimental conditions, each designed to systematically isolate the involvement of the various subcomponents comprising this mental rotation task, it was suggested that the right frontal lobe mediates encoding and comparison/decision processes, while the left parietal and the left temporal region appear most involved in the generation of images and their mental rotation. A preliminary model describing the cooperative interaction of these cortical regions during mental rotation tasks is proposed.

Original languageEnglish
Pages (from-to)707-718
Number of pages12
Issue number5
StatePublished - 1998


  • Brain lateralization
  • Image generation
  • Mental rotation


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