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Conscious Cogn. 2001 Sep;10(3):356-65.

Precuneus-prefrontal activity during awareness of visual verbal stimuli.

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1
John F. Kennedy Institute, DK-2600 Glostrup, Denmark.

Abstract

Awareness is a personal experience, which is only accessible to the rest of world through interpretation. We set out to identify a neural correlate of visual awareness, using brief subliminal and supraliminal verbal stimuli while measuring cerebral blood flow distribution with H(2)(15)O PET. Awareness of visual verbal stimuli differentially activated medial parietal association cortex (precuneus), which is a polymodal sensory cortex, and dorsolateral prefrontal cortex, which is thought to be primarily executive. Our results suggest participation of these higher order perceptual and executive cortical structures in visual verbal awareness.

PMID:
11697869
DOI:
10.1006/ccog.2001.0509
[Indexed for MEDLINE]
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