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on their sensory–motor feature associations (sight, sound, manipulation, and abstract). We found that the angu-
Heteromodal lar gyrus was activated across all categories regardless of their modality-specific feature associations, consistent
with a heteromodal account for the angular gyrus. Exploratory analyses suggested that categories with weighted
sensory–motor features additionally recruited modality-specific association cortices. Furthermore, DTI
tractography identified white matter tracts connecting these regions of modality-specific functional activation
with the angular gyrus. These findings are consistent with a distributed semantic network that includes a
heteromodal, integrative component in the angular gyrus in combination with sensory–motor feature represen-
tations in modality-specific association cortices.
© 2013 Elsevier Inc. All rights reserved.
Introduction within the most prominent sensory–motor frameworks, heteromodal
regions have received comparatively little attention (Barsalou, 2008;
Neural representations of meaning are fundamental to human Martin, 2007; Pulvermüller, 2005).
cognition. Our long-term semantic memory—our knowledge for While it is well accepted that sensory and motor association areas
words, objects, people, a