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Record W4412439466 · doi:10.1167/jov.25.9.2287

Are you a visual ‘shader’ or a ‘bolder’?: Different visual routines create everyday hallucinations in ‘scaffolded attention’

2025· article· en· W4412439466 on OpenAlexafffund
Joan Danielle K. Ongchoco

Bibliographic record

VenueJournal of Vision · 2025
Typearticle
Languageen
FieldNeuroscience
TopicHallucinations in medical conditions
Canadian institutionsUniversity of British Columbia
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsShaderVisual HallucinationCognitive psychologyPsychologyComputer scienceComputer graphics (images)Graphics

Abstract

fetched live from OpenAlex

Visual processing of incoming sensory cues gives rise to the rich colours that fill contours and the contours that form objects. But people can also experience colours and contours in the *absence* of explicit sensory cues, albeit in more fleeting ways — as in the phenomenon of “scaffolded attention”. Consider a regular grid of squares. By definition, there is no structure there, but many people report seeing various shapes and patterns anyway (e.g., horizontal lines, block letters). But beyond *what* people see, perhaps more intriguing is *how* they experience it. Some describe the squares of perceived patterns to be brighter or differently shaded (i.e., “shaders”), while others note the squares as being ‘outlined’ or ‘traced’ (i.e., “bolders”). What determines when people experience one ‘type’ over another? Here observers reported which type they experienced, and reproduced the magnitude of bolding and/or shading through an interactive grid. We then explored the influence of *external* grid features (e.g., white squares with black outlines vs. black squares with white outlines), and *internal* factors (e.g., attentional breadth [via the ‘Functional Field of View task; FFOV], and sensitivity to figure-ground boundaries [via the Leuven Embedded Figures Test; LEFT]). First, the proportions of shaders and bolders overwhelmingly differed across grids, with reliably more bolders for black (93.2%) than for white grids (41.1%) — perhaps because the contrast differences change whether the squares or the lines are seen as figure or ground. Second, only the LEFT (and not FFOV) scores predicted whether people would be a ‘shader’ or ‘bolder,’ highlighting the role of segmentation processes in scaffolded attention. Thus, people’s everyday hallucinations can depend on what the mind selects — the squares on the white grids or the lines of black grids — which may be grouped together through different visual routines.

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 distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.006
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.898
Threshold uncertainty score0.713

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.006
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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 head0.033
GPT teacher head0.381
Teacher spread0.348 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
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
Published2025
Admission routes2
Has abstractyes

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