ArticleCerebral cortex (New York, N.Y. : 1991)2024
Neural signatures of visual awareness independent of postperceptual processing.
Article in Cerebral cortex (New York, N.Y. : 1991), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Sequential neural dynamics underlie unconscious integration and conscious perception of visual stimuli.PLoS biology · 2026Article
- Covert consciousness: what's in a name?Brain : a journal of neurology · 2025Article
- The Subliminal Threshold Estimation Procedure (STEP): A calibration method tailored for estimating subliminal thresholds.Behavior research methods · 2025Article
- Ketamine disrupts consciousness in healthy participants in relation with psychotic-like symptoms.bioRxiv : the preprint server for biology · 2025Article
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5 authors.
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Abstract
What are the neural processes associated with perceptual awareness that are distinct from preconscious sensory encoding and postperceptual processes such as reporting an experience? Using electroencephalography and a no-report visual masking paradigm, we manipulated stimulus visibility by varying the time between stimuli and masks in linear steps (17, 33, 50, 67, and 83 ms). Awareness increased nonlinearly, with stimuli never seen at the two shortest intervals, always seen at the two longest, and 50% seen at the intermediate interval. Separate report and no-report conditions were used to isolate awareness from task performance. Our results revealed a neural signal closely linked to perceptual awareness, independent of the task: a fronto-central event-related potential that we refer to as the N2 (~250 to 300 ms). Earlier event-related potential signals reflected the linear manipulation of stimulus strength, while later signals like P3b and temporal generalization of decoding were tied to task performance, appearing only in the report condition. Taken together, these findings inform current debates regarding theories of consciousness and offer new avenues for exploring the neural mechanisms supporting conscious processing.
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