Format

Send to

Choose Destination
Neuroimage. 2002 Mar;15(3):547-58.

Widespread dorsal stream activation during a parametric mental rotation task, revealed with functional magnetic resonance imaging.

Author information

1
Department of Medicine, University of Sydney, Sydney, Australia.

Abstract

Following a parametrically modulated mental rotation task, in which 10 healthy subjects were instructed to determine whether alphanumeric characters were normal or mirror-reversed, bilateral dorsal stream activations culminating in the intraparietal region were revealed with functional magnetic resonance imaging. Although the parietal activations were bilateral, we observed a right hemispheric dominance for the task, consistent with our previous findings (I. M. Harris et al., 2000). By studying individual activation maps in response to the paradigm, we discerned parcellation of the intraparietal region into discrete subdivisions. In this paper, we address the involvement of structures surrounding the intraparietal sulcus in mental rotation, as well as describing a wider visuospatial attentional network, encompassing neural substrates within the dorsal stream.

PMID:
11848697
DOI:
10.1006/nimg.2001.0999
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center