Modality-specific and modality-independent components of the human imagery system

Sander M. Daselaar*, Yuval Porat, Willem Huijbers, Cyriel M.A. Pennartz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

109 Scopus citations

Abstract

Imagery research typically deals with the commonalities and differences between imagery and perception. As such, it is usually confined to one specific modality. Yet, it is likely that some of the underlying processes are shared between different sensory modalities while others are modality-specific. In this fMRI study, we used a balanced design that allowed for a direct comparison between imagery and perception in visual and auditory modalities, and also for a link between subjective imagery experience and brain activation. Results indicated a selective role for the "default mode network" as a modality-independent "core" imagery network. In addition, results identified areas in the visual and auditory association cortices that contributed to mental imagery in a modality-specific fashion. Interestingly during mental imagery, primary visual and auditory cortices showed modality-specific suppression of activity. This is the first fMRI study to characterize both modality-specific and modality-independent components of the human imagery system.

Original languageAmerican English
Pages (from-to)677-685
Number of pages9
JournalNeuroImage
Volume52
Issue number2
DOIs
StatePublished - Aug 2010
Externally publishedYes

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