Functional anatomy of top-down visuospatial processing in the human brain: Evidence from rTMS

André Aleman, Dennis J.L.G. Schutter, Nick F. Ramsey, Jack Van Honk, Roy P.C. Kessels, Johannes M. Hoogduin, Albert Postma, René S. Kahn, Edward H.F. De Haan

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The hypothesis was tested that visuospatial mental imagery relies on processing in the posterior parietal lobe. Using repetitive transcranial magnetic stimulation (rTMS) in a cross-over, sham-controlled design, we compared involvement of right posterior parietal cortex with primary visual cortex. Subjects received rTMS over the parietal and occipital cortices during 20 min, after which they performed a behaviorally controlled visuospatial mental imagery task. Performance deteriorated significantly after rTMS over the parietal, but not occipital, cortex. These data support a causal link between parietal activation and top-down spatial processing.

Original languageEnglish
Pages (from-to)300-302
Number of pages3
JournalCognitive Brain Research
Volume14
Issue number2
DOIs
StatePublished - 2002
Externally publishedYes

Keywords

  • Imagery
  • Parietal cortex, Visuospatial function
  • rTMS

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