Modulation of neural activity by angle of rotation during imagined spatial transformations

Madeleine Keehner*, Scott A. Guerin, Michael B. Miller, David J. Turk, Mary Hegarty

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

71 Citations (Scopus)

Abstract

Imagined spatial transformations of objects (e.g., mental rotation) and the self (e.g., perspective taking) are psychologically dissociable. In mental rotation, the viewer transforms the location or orientation of an object relative to stable egocentric and environmental reference frames. In imagined shifts of perspective, the viewer's egocentric reference frame is transformed with respect to stable objects and environment. Using fMRI, we showed that during mental transformations of objects the right superior parietal cortex exhibited a positive linear relationship between hemodynamic response and degrees of rotation. By contrast, during imagined transformations of the self, the same regions exhibited a negative linear trend. We interpret this finding in terms of the role of parietal cortex in coding the locations of objects in relation to the body. (c) 2006 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)391-398
Number of pages8
JournalNeuroImage
Volume33
Issue number1
DOIs
Publication statusPublished - 15 Oct 2006

Structured keywords

  • Cognitive Science

Keywords

  • mental rotation
  • perspective taking
  • spatial
  • parietal
  • intraparietal sulcus
  • EVENT-RELATED FMRI
  • MENTAL ROTATION
  • FUNCTIONAL MRI
  • PERSPECTIVE-TAKING
  • ACTIVATION
  • OBJECT
  • DISSOCIATION
  • RECOGNITION
  • BODIES
  • SYSTEM

Cite this