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Record W2004356204 · doi:10.1167/12.9.1009

Experience Visual Qualia without Conscious Percept?

2012· article· en· W2004356204 on OpenAlexaff
Rong Zhou, M. von Grünau

Bibliographic record

VenueJournal of Vision · 2012
Typearticle
Languageen
FieldNeuroscience
TopicVisual perception and processing mechanisms
Canadian institutionsConcordia University
Fundersnot available
KeywordsPerceptBinocular rivalryPsychologyPerceptionBinocular visionDissociation (chemistry)Cognitive psychologyBinocular disparityIllusionVisual perceptionEye movementBlindsightContrast (vision)CommunicationAudiologyComputer visionComputer scienceNeuroscience

Abstract

fetched live from OpenAlex

In the phenomenon of blindsight, people can exhibit above-chance performance in responding to visual stimuli, which indicates there is a possible dissociation between visual awareness and performance. Moreover, it is possible that observers tend to degrade their awareness threshold while they are under-confident due to the inability of perceiving targets clearly. In Experiment 1 (n = 3), we presented observers with drifting plaids composed of two superimposed gratings whose direction differed by 180°, the orientation of which was varied by 10, 20, 30, and 45°. Perceptual responses (i.e., perceived component or pattern motion) and eye movement (EM) patterns were recorded under binocular- and dichoptic-viewing conditions. In Experiment 2 (n = 3), we used only dichoptic viewing and utilized binocular switch suppression technique (i.e., repeatedly switching conflicting images between the eyes) to render drifting gratings temporarily invisible. Furthermore, the contrast level of drift gratings was varied. Perceptual responses and EM patterns were recorded. Observers had to indicate their visual experience categorically (i.e., clear image, almost clear image, weak glimpse, or not seen) at the end of each trial. During binocular viewing, observers’ perceptual responses were consistent with their EMs. Under the dichoptic-viewing condition, observers perceived component motion frequently. There was no clear dissociation between perceptual responses and EMs. However, the optokinetic nystagmus rate (OKN) increased during dichoptic viewing. In Experiment 2, EMs were dissociable from observers’ perceptual responses even when they reported no awareness of moving gratings. Moreover, observers reported visual experience as being graded rather than "all-or-none". Our findings indicate observers’ visual awareness and performance can be dissociated, and they tend to underestimate their visual capacity when conditions are difficult. Understanding how the visual system operates with or without visual awareness by using different psychophysical manipulations will allow us to use measurable techniques to trace the fingerprints of the neuronal correlates of consciousness. Meeting abstract presented at VSS 2012

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.004
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.008
Threshold uncertainty score0.027

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.004
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.002
Scholarly communication0.0020.002
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0080.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.072
GPT teacher head0.423
Teacher spread0.351 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2012
Admission routes1
Has abstractyes

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