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Record W4386247262 · doi:10.1167/jov.23.9.4721

Vection does not facilitate flow parsing

2023· article· en· W4386247262 on OpenAlexaff
Hongyi Guo, Robert S. Allison

Bibliographic record

VenueJournal of Vision · 2023
Typearticle
Languageen
FieldNeuroscience
TopicVisual perception and processing mechanisms
Canadian institutionsYork University
Fundersnot available
KeywordsMonocularDepth perceptionStereoscopyComputer visionStereopsisPerceptionPsychologyOptical flowBinocular disparityComputer scienceArtificial intelligenceAudiologyCommunicationMedicineNeuroscience

Abstract

fetched live from OpenAlex

The perception of self-motion can be induced or enhanced by exposure to visual stimuli such as optic flow. It has also been shown that consistent stereoscopic information enhances visually-induced self-motion perception (vection). Conversely, does vection affect the observer’s ability to parse the flow? And if so, how does it interact with binocular stereopsis? To investigate, we presented participants a scene including a target, a fixation cross, floor, ceiling, and pillars to provide optic flow using a wide-field, stereoscopic, immersive display. Participants virtually moved forward or backward at 1.4 m/s, either while continuously viewing the scene to produce vection or when it was only displayed during the 500 ms trial (the no-vection condition). The target was presented initially at eye level, and moved obliquely upward in a sagittal-parallel plane. The target’s velocity in depth was adjusted by adaptive staircases to obtain the bias and sensitivity. The task was to indicate whether the target moved obliquely forward or backward in the scene. The stimuli were presented in three viewing conditions: stereoscopic condition, synoptic condition, and monocular condition, to explore the possible interaction between vection and stereoscopic information. While all participants verbally reported that they experienced more vection with the vection condition, the result showed that the bias was slightly but significantly (F(1,127)=5.0217, p<.027) higher with vection (1.279 m/s) than without vection (1.219 m/s). This means vection did not help on reducing the flow parsing bias. Furthermore, we did not find any significant interaction effect between vection conditions and viewing conditions.

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)0.000
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.003
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

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 head0.100
GPT teacher head0.370
Teacher spread0.270 · 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 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
Published2023
Admission routes1
Has abstractyes

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