Precuneus-prefrontal activity during awareness of visual verbal stimuli

Consciousness and Cognition 10 (3):356-365 (2001)
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 H215O 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.
Keywords *Auditory Stimulation  *Brain Stimulation  *Cerebral Blood Flow  *Consciousness States  *Visual Stimulation  Awareness  Tomography
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DOI 10.1006/ccog.2001.0509
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References found in this work BETA
Erik Lumer & Geraint Rees (1999). Covariation of Activity in Visual and Prefrontal Cortex Associated with Subjective Visual Perception. Proceedings of the National Academy of Sciences of the United States of America 96 (4):1669-1673.

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