Knee flexion causally predicts pitch expectation in expressive playing (Granger causality)¶

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 2023 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Knee flexion curves Granger-predict pitch expectation profiles in the expressive condition for three of four passages. → Moura 2023

Evidence¶

Moura 2023¶

Moura, N., Vidal, M., Aguilera, A. M., Vilas-Boas, J. P., Serra, S. & Leman, M. (2023). Knee flexion of saxophone players anticipates tonal context of music. npj Science of Learning 8:22. https://doi.org/10.1038/s41539-023-00172-z

q2 · i? · associational · r1

Granger causality analysis of motion-capture knee curves against model-derived pitch expectation profiles in the expressive condition; the article reports "p = 0.006, F = 2.344" for P1 and similar statistics for P2–P4.

"The following interactions were found when testing for Granger causality in the EXP condition: P1 [ p = 0.006, F = 2.344], P2 [p = 0.063, F = 1.702], P3 [ p = 0.009, F = 2.307] and P4 [ p = 0.002, F = 3.30]"

Discussion¶

Related Claims¶

• Knee flexion also predicts pitch expectation when players are instructed to be immobile — related
• Micro-flexions (>1 Hz) occur more frequently in the immobile condition than the expressive condition — related
• Rhythmical density correlates negatively with knee movement amplitude and positively with flexion frequency — related
• Passages of higher rhythmical density elicit more frequent but smaller knee flexions than lower-density passages — related