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Type Journal Article
Scope Discipline-based scholarship
Title Visuohaptic convergence in a corticocerebellar network
Organization Unit
Authors
  • M J Naumer
  • L Ratz
  • Y Yalachkov
  • A Polony
  • O Doehrmann
  • V van de Ven
  • N G Müller
  • J Kaiser
  • G Hein
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title European Journal of Neuroscience
Publisher Wiley-Blackwell
Geographical Reach international
ISSN 0953-816X
Volume 31
Number 10
Page Range 1730 - 1736
Date 2010
Abstract Text The processing of visual and haptic inputs, occurring either separately or jointly, is crucial for everyday-life object recognition, and has been a focus of recent neuroimaging research. Previously, visuohaptic convergence has been mostly investigated with matching-task paradigms. However, much less is known about visuohaptic convergence in the absence of additional task demands. We conducted two functional magnetic resonance imaging experiments in which subjects actively touched and/or viewed unfamiliar object stimuli without any additional task demands. In addition, we performed two control experiments with audiovisual and audiohaptic stimulation to examine the specificity of the observed visuohaptic convergence effects. We found robust visuohaptic convergence in bilateral lateral occipital cortex and anterior cerebellum. In contrast, neither the anterior cerebellum nor the lateral occipital cortex showed any involvement in audiovisual or audiohaptic convergence, indicating that multisensory convergence in these regions is specifically geared to visual and haptic inputs. These data suggest that in humans the lateral occipital cortex and the anterior cerebellum play an important role in visuohaptic processing even in the absence of additional task demands.
Digital Object Identifier 10.1111/j.1460-9568.2010.07208.x
PubMed ID 20584176
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