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Record W95699626 · doi:10.1167/7.9.408

[no title]

2010· article· en· W95699626 on OpenAlex
Vanitha Sampath, Gene R. Stoner, Karen R. Dobkins

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Vision · 2010
Typearticle
Languageen
FieldEngineering
TopicAdvanced Optical Imaging Technologies
Canadian institutionsInstitute for Biological Sciences
Fundersnot available
KeywordsGratingOpticsPhysicsStimulus (psychology)DiamondPsychologyAudiologyMaterials scienceMedicine

Abstract

fetched live from OpenAlex

Purpose: Previous studies indicate that by two months of age, infants integrate one- (1D) and two-dimensional (2D) motion signals (Dobkins, Lewis & Fine, 2006). Here, we investigated whether infants are sensitive to depth-ordering (occlusion) cues that determine whether 2D features are seen as intrinsic or extrinsic to moving 1D features. Methods: Modeled after the barber-diamond (BD) stimulus of Duncan, Albright & Stoner (2000), our BD stimulus consisted of vertically moving gratings (0.8 cpd, 8 Hz) presented within 83 diamond-shaped apertures (3 × 3 deg), evenly spaced across the display. Two occluding white bars (3.0 by 0.4 deg) abutted each BD on opposite sides. The two other sides were framed by a black background. We predicted that 2D terminators abutting the occluders would appear as extrinsic to the moving gratings, while 2D terminators along the two (unoccluded) sides would appear as intrinsic. Using a directional (left vs. right) eye movement (DEM) technique, we asked whether infants distinguished between the motion of intrinsic and extrinsic terminators, which moved up/right (45 deg) and up/left (135 deg), respectively (or vice versa). Performance (where 50% = chance) from the BD condition was compared to that from an Equivalent Direction (ED) condition, which consisted of diamond-shaped apertures containing unambiguous grating motion at 45 or 135 deg. For each infant, a BD index (BDI) was calculated as: (DEM performance on the BD condition-50%)/(DEM performance on the ED condition-50%). BDI values greater than 0 indicate a BD effect. Results: For 13 four-month-olds tested thus far, performance in the BD condition was significantly above chance (50%) (p[[lt]]0.001) and the mean BDI was 0.48 (p=0.001). Conclusions: By four months of age, visual motion mechanisms are sensitive to depth-ordering (occlusion) cues. We are currently tracking the development of this phenomenon in infants of different ages.

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.

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)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.280
Threshold uncertainty score0.480

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
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 head0.005
GPT teacher head0.267
Teacher spread0.262 · 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