An fMRI sSudy of Imagined Self-Rotation

Authors

Sarah H. Creem, The University of Utah
Traci Hirsch Downs, University of Virginia
Maryjane Wraga, Smith College
Gregory S. Harrington, University of California, Davis
Dennis R. Proffitt, University of Virginia
J. Hunter Downs, University of Virginia

Document Type

Article

Publication Date

1-1-2001

Publication Title

Cognitive, Affective and Behavioral Neuroscience

Abstract

In the present study, functional magnetic resonance imaging was used to examine the neural mechanisms involved in the imagined spatial transformation of one's body. The task required subjects to update the position of one of four external objects from memory after they had performed an imagined self-rotation to a new position. Activation in the rotation condition was compared with that in a control condition in which subjects located the positions of objects without imagining a change in self-position. The results indicated similar networks of activation to other egocentric transformation tasks involving decisions about body parts. The most significant area of activation was in the left posterior parietal cortex. Other regions of activation common among several of the subjects were secondary visual, premotor, and frontal lobe regions. These results are discussed relative to motor and visual imagery processes as well as to the distinctions between the present task and other imagined egocentric transformation tasks.

Volume

1

Issue

3

First Page

239

Last Page

249

DOI

10.3758/CABN.1.3.239

ISSN

15307026

Comments

Archived as published.

Recommended Citation

Creem, Sarah H.; Downs, Traci Hirsch; Wraga, Maryjane; Harrington, Gregory S.; Proffitt, Dennis R.; and Downs, J. Hunter, "An fMRI sSudy of Imagined Self-Rotation" (2001). Psychology: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/psy_facpubs/127