ArticleiScience2024
Perceptual awareness of near-threshold tones scales gradually with auditory cortex activity and pupil dilation.
Article in iScience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- The influence of subjective confidence on speed perception in peripheral vision.Scientific reports · 2026Article
- Inter-Stimulus-Interval Dependence in Auditory Cortex Reflects Perceptual Organization of Streams Under Informational Masking.Psychophysiology · 2025Article
- Combined MEG and EEG suggest a limbic source network of the P3 including retrosplenial cortex and hippocampus.bioRxiv : the preprint server for biology · 2025Article
- The Interplay of Spontaneous Pupil-Size Fluctuations and EEG Power in Near-Threshold Detection.Psychophysiology · 2025Article
- A listening advantage for native speech is reflected by attention-related activity in auditory cortex.Communications biology · 2025Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Negative-going responses in sensory cortex co-vary with perceptual awareness of sensory stimuli. Given that this awareness negativity has also been observed for undetected stimuli, some have challenged its role for perception. To address this question, we combined magnetoencephalography, electroencephalography, and pupillometry to study how sustained attention and response criterion affect the auditory awareness negativity. Participants first detected distractor sounds and denied hearing task-irrelevant near-threshold tones, which evoked neither awareness negativity nor pupil dilation. These same tones evoked both responses when task-relevant, stronger for hit but also present for miss trials. Participants then rated their perception on a six-point scale to test whether response criterion explains the presence of these responses for miss trials. Decreasing perception ratings were associated with gradually reduced evoked responses, consistent with signal detection theory. These results support the concept of an awareness negativity that is modulated by attention but does not require a non-linear threshold mechanism.
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Registered trials
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