Table 1 Overview of tasks employed in this study. DV = dependent variable; ITI = inter-tap interval; IOI = inter-onset interval; MADM = median absolute deviation divided by the median; Mdn = median; SMT = spontaneous motor tempo; SPR = spontaneous production rate. Because there were several pre-lab SMT online sessions Mdn and MADM are calculated within and across sessions.

From: Spontaneous rates exhibit high intra-individual stability across movements involving different biomechanical systems and cognitive demands

Task

Device

Instructions

DV

N

SMT online pre-lab

Smartphone/Laptop/ Tablet

Using the index finger of your dominant hand, please tap at a steady rate that feels comfortable to you

Mdn(ITI)within

Mdn(ITI)across

MADM(ITI)within

MADM(ITI)across

50

SMT online in-lab

Mdn(ITI) & MADM(ITI)

52

SMT

Metal plate

55

SMT with sound

58

SPR: Brother John

Please play the song using the index finger of your dominant hand. [two practice trials for each song]

56

SPR: Twinkle

57

Walking

Audio recorder

Please walk at a steady rate that feels comfortable to you, put your hands on the wall, and walk back

Mdn(IOI)

54

Clapping

Please clap your hands together at a steady rate that feels comfortable to you

58

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