Temporal structure in sensorimotor variability: a stable trait, but what for?

Perquin M, Bompas A (2019)
bioRxiv.

Preprint | Veröffentlicht | Englisch
 
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Autor*in
Perquin, MarlouUniBi; Bompas, Aline
Abstract / Bemerkung
Human performance shows substantial endogenous variability over time, and this variability is a robust marker of individual differences. Variability is not fully random, but often exhibits temporal dependencies. However, their measurement and interpretation come with several controversies, and their potential benefit for studying individual differences remains unclear. Two recent studies have linked individual differences in temporal structures to task performance on the same data, but with contrasting results. Here we use the metronome task, requiring participants to press a button in synchrony with a tone, widely used to study sensorimotor variability. We first investigate the intra-individual repeatability of the most common measures of temporal structures. Secondly, we examine inter-individual correlates of these measures with: 1) task performance assessed from the same data series, 2) meta-cognitive ratings of on-taskness from thought probes occasionally presented throughout the task, and 3) self-assessed traits commonly assumed to relate to attention or sensorimotor control (ADHD tendencies, mind wandering, and impulsivity). Autocorrelation at lag 1 and Power Spectra Density slope showed high repeatability and good correlations with task performance. Detrended Fluctuation Analysis slope showed the same pattern, but less reliably. The long-term component (d) of the ARFIMA(1,d,1) model shows poor repeatability and no correlation to performance. None of these measures showed external validity when correlated to either mean subjective attentional state or self-assessed traits between participants. In sum, some measures of serial dependencies may be stable individual traits, but their usefulness to study individual differences in other constructs typically associated with variability in performance remains elusive.
Erscheinungsjahr
2019
Zeitschriftentitel
bioRxiv
Page URI
https://pub.uni-bielefeld.de/record/2943823

Zitieren

Perquin M, Bompas A. Temporal structure in sensorimotor variability: a stable trait, but what for? bioRxiv. 2019.
Perquin, M., & Bompas, A. (2019). Temporal structure in sensorimotor variability: a stable trait, but what for? bioRxiv
Perquin, M., and Bompas, A. (2019). Temporal structure in sensorimotor variability: a stable trait, but what for? bioRxiv.
Perquin, M., & Bompas, A., 2019. Temporal structure in sensorimotor variability: a stable trait, but what for? bioRxiv.
M. Perquin and A. Bompas, “Temporal structure in sensorimotor variability: a stable trait, but what for?”, bioRxiv, 2019.
Perquin, M., Bompas, A.: Temporal structure in sensorimotor variability: a stable trait, but what for? bioRxiv. (2019).
Perquin, Marlou, and Bompas, Aline. “Temporal structure in sensorimotor variability: a stable trait, but what for?”. bioRxiv (2019).

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Preprint: 10.1101/817916

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