The Influence of Stimulus Speed and Cognitive Factors on Cortical Responses to Vection-inducing Stimuli
Bibliographic record
Abstract
Vection is the illusion of self-motion elicited by visual cues without corresponding physical movement. Using electroencephalography, alpha activity has been found to increase in the parieto-occipital regions following vection onset. Variability in individuals' perception of upright has been reported to affect vection. Yet objective measures of this phenomenon are missing, and our understanding of how cognitive factors influence vection is limited. In this study, vection onset, offset, and neurophysiological data were recorded while participants viewed vection-inducing stimuli. Participants completed depersonalization and anxiety questionnaires and a field dependence test. Only state anxiety accounted for a substantial amount of variance in vection intensity scores. Alpha power varied as across time and stimulus speed, decreasing after vection onset and only in response to the slow-moving stimulus. This suggests that stimulus intensity may cause variation in neural responses. The results of this study can aid in the development of an objective measure of vection.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".