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The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task

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Published on: May 3, 2018

Influence of Motor and Cognitive Tasks on Time Estimation.

Serena Castellotti¹, Ottavia D'Agostino¹, Alessandra Biondi¹

¹Department of Neurofarba, University of Florence, 1035 Florence, Italy.

|March 25, 2022

Summary

Human time perception is distorted by concurrent tasks. Difficult cognitive tasks and walking significantly impair time estimation accuracy, showing cognitive and motor systems compete for resources.

Keywords:

clock speed cognitive load cognitive–motor interaction duration estimation time perception walking

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Area of Science:

Cognitive psychology
Neuroscience
Human perception

Background:

Accurate time estimation is crucial, but human perception is subjective.
Concurrent non-temporal tasks impair time estimation, but the effect of combined cognitive and motor tasks is unknown.
Previous studies focused on short time intervals, limiting understanding of longer durations.

Purpose of the Study:

To investigate how concurrent cognitive and motor tasks influence time estimation.
To examine the impact of cognitive task difficulty on temporal perception.
To assess distortions in time estimation for durations up to two minutes.

Main Methods:

Participants performed cognitive tasks (visual, reading, math) of varying difficulty while sitting or walking.
Temporal durations up to two minutes were estimated.
Time estimation biases and uncertainties were analyzed based on task conditions.

Main Results:

Without concurrent tasks, participants overestimated durations.
Increased cognitive task difficulty led to time underestimation.
Walking exacerbated temporal estimation distortions compared to sitting.
Distortions varied with duration, suggesting fixed relative uncertainty.

Conclusions:

Cognitive and motor systems interact non-linearly, interfering with time perception.
These systems likely compete for shared neural resources.
Findings highlight the complex interplay between attention, cognition, motor activity, and time perception.