Abstract：
:Previous research has shown that imagined perspective rotations elicit spatial and low-level cortical motor areas of the brain when participants rely on knowledge of their physical body, or body percept (Wraga, Flynn, Boyle, & Evans, 2010). The current study used functional magnetic resonance imaging (fMRI) to investigate whether recruitment of the body percept would activate low-level cortical motor areas of the brain within other classes of mental transformations. Participants performed imagined object and perspective rotations of three-dimensional Shephard-Metzler (1971) stimuli. For each task, participants used button presses serving as virtual pointers to locate a prescribed portion of the stimuli with respect to their "right" and "left." We found low-level cortical motor activation (M1) for both mental transformations; however, the degree to which such activation related to participants' performance differed, as well as the recruitment of additional nonmotoric strategies. The results are discussed in terms of recent hypotheses regarding the role of the body percept in extrinsically encoded mental transformations.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Wraga M,Boyle HK,Flynn CMdoi
10.1016/j.bandc.2010.07.005subject
Has Abstractpub_date
2010-12-01 00:00:00pages
193-202issue
3eissn
0278-2626issn
1090-2147pii
S0278-2626(10)00092-8journal_volume
74pub_type
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