Language, perception, and the schematic representation of spatial relations

DOI

10.1016/j.bandl.2011.09.007

Document Type

Journal Article

Publication Date

3-1-2012

Publication Title

Brain and Language

Volume

120

Issue

3

First Page

226

Last Page

236

ISSN

0093934X

Keywords

Hemispheric specialization, Lesion studies, Semantics, Spatial cognition

Abstract

Schemas are abstract nonverbal representations that parsimoniously depict spatial relations. Despite their ubiquitous use in maps and diagrams, little is known about their neural instantiation. We sought to determine the extent to which schematic representations are neurally distinguished from language on the one hand, and from rich perceptual representations on the other. In patients with either left hemisphere damage or right hemisphere damage, a battery of matching tasks depicting categorical spatial relations was used to probe for the comprehension of basic spatial concepts across distinct representational formats (words, pictures, and schemas). Left hemisphere patients underperformed right hemisphere patients across all tasks. However, focused residual analyses using voxel-based lesion-symptom mapping (VLSM) suggest that (1) left hemisphere deficits in the representation of categorical spatial relations are difficult to distinguish from deficits in naming these relations and (2) the right hemisphere plays a special role in extracting schematic representations from richly textured pictures. © 2011 Elsevier Inc.

Open Access

Green Accepted

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