"You say goodbye and I say hello": Modulating interpersonal sensorimotor couplings following intrapersonal sensorimotor experience
Bibliographic record
Abstract
Observing the action of another person can cause the activation of motor codes, which are responsible for the execution of action. This coupling between observation and execution may be modulated by distinguishing self- and other-generated actions. That is, the affect of observation-activated motor codes may be reduced by a greater self-other distinction. Of interest, self-other distinction may be enhanced by sensorimotor experiences. In Experiment 1, the influence of sensorimotor experiences pertaining to self-generated action on involuntary movement interference (motor contagion) was examined. In pre- and post-test, participants executed horizontal arm movements while simultaneously observing a congruent (horizontal) or incongruent (vertical) movement. For training, different groups executed horizontal arm movements with or without visual feedback of their limb. Contagion effects at pre-test (greater orthogonal movement deviation for incongruent compared to congruent) were eliminated at post-test for the vision group, but remained for the no vision group. In Experiment 2, TMS was used to provide a neurophysiological indicator of contagion. In pre- and post-test, TMS was provided to M1 during the observation of index and little finger abduction. During training, participants executed index or little finger movements with or without visual feedback. Congruency effects at pre-test (greater excitability for congruent compared to incongruent) were eliminated at post-test following practice with vision, but remained following practice without vision. These findings indicate how intrapersonal sensorimotor experiences can modulate interpersonal sensorimotor couplings. This modulation likely emerged because intrapersonal sensorimotor experiences refine internal models of action, which enhance the distinction between self- and other-generated actions.Acknowledgments: This research was supported by a number of grants awarded from the Natural Sciences and Engineering Research Council of Canada (NSERC).
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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 | 0.002 |
| 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 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| 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".