Difficulty maintaining a 90° phase-shifted bimanual circling pattern reflects an unsuitable strategy rather than neuromuscular constraint, and spatial or imagined marks render the task easy¶

Claim · All claims
Evidence · 1 study (2 entries) · theoretical r3 · q1
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q1 i? Most people are hardly able to maintain a 90° phase-shifted inward circling pattern and lose it when speeding up, per anecdotal evidence and unpublished pilot observations. → Dor Abrahamson · Franz Mechsner 2022 q1 i? With marks placed at 12 o'clock and 9 o'clock, or even only imagined, people can perform the 90° phase-shifted pattern, per anecdotal evidence and unpublished pilot data. → Dor Abrahamson · Franz Mechsner 2022 (2)

Evidence¶

Dor Abrahamson · Franz Mechsner 2022¶

Dor Abrahamson · Franz Mechsner. (2022). Toward Synergizing Educational Research and Movement Sciences: a Dialogue on Learning as Developing Perception for Action. Educational Psychology Review. https://doi.org/10.1007/s10648-022-09668-3

q1 · i? · theoretical · r3

Preliminary observations on the 90° phase-shifted inward circling exercise without cues; the article explicitly labels the support as "Anecdotal evidence and unpublished pilot observations". No sample size, statistics, or effect size are printed.

"Anecdotal evidence and unpublished pilot observations by Mechsner suggest that most people are hardly able to maintain the relationship at all and, in any case, lose the pattern when speeding up."

Dor Abrahamson · Franz Mechsner 2022 (2)¶

Dor Abrahamson · Franz Mechsner. (2022). Toward Synergizing Educational Research and Movement Sciences: a Dialogue on Learning as Developing Perception for Action. Educational Psychology Review. https://doi.org/10.1007/s10648-022-09668-3

q1 · i? · theoretical · r3

Preliminary observations with marks at 12 o'clock of the left circle and 9 o'clock of the right circle, with the instruction to pass both marks simultaneously; the article states the support is "Anecdotal evidence and unpublished pilot data". No statistics or effect size printed.

"Anecdotal evidence and unpublished pilot data suggest that people can perform the pattern even if they only imagine the marks."

Discussion¶

Related Claims¶

• Students solving bimanual proportion tasks spontaneously develop attentional anchors, such as an imaginary diagonal line, that guide coordinated movement — related
• The bimanual finger-oscillation symmetry tendency is perceptual rather than neuromuscular: the symmetrical pattern stays stable across congruous and incongruous hand positions while the parallel pattern disintegrates with speed — related
• An otherwise impossible 4:3 bimanual circling frequency relationship can be performed comfortably when it serves visual symmetry of visible proxy flags — related