Deconstructing a musical delusion: Point-light representations capture salient properties of impact motions
Bibliographic record
Abstract
Although visual information affects auditory perception in a variety of tasks, audition is generally believed to be relatively immune from visual influence when judging tone duration. However, Schutz and Lipscomb (2007) report a musical illusion in which physical gestures influence the perceived duration of notes performed on the marimba. In order to better understand which aspects of these gestures are responsible for the illusion, we created a "schematic marimbist" consisting of either a four-point skeleton or a single moving dot. This schematic abstraction captured the essential properties of the gestures, replicating the effect under both conditions. Therefore, this illusion requires seeing only a sudden change in gesture direction - independent of the depiction of a struck object. As this finding means that it can be replicated with a minimum of visual information, it will be useful in facilitating future research aimed at uncovering the reason for this break with the widely accepted theory of 'optimal integration'.
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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 | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.001 | 0.003 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".