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Related Experiment Video

Updated: May 8, 2026

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents

The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents

Published on: August 10, 2014

Task complexity, accuracy, and reaction time.

J I Laszlo¹, J P Livesey

¹a Departments of Physiology and Psychology , University of Western Australia.

Journal of Motor Behavior

|August 17, 2013

Summary

This summary is machine-generated.

Accuracy demand impacts human movement responses. Increased accuracy requirements lengthened reaction time (RT) when moving from zero to one dot, but increased movement time (MT) when progressing from one to two dots.

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Area of Science:

Cognitive Psychology
Human Motor Control
Experimental Psychology

Background:

Understanding response complexity is crucial for analyzing human performance.
Accuracy demand is a key factor influencing the efficiency and timing of motor responses.

Purpose of the Study:

To investigate how varying levels of accuracy demand affect different components of a motor response.
To differentiate the roles of reaction time (RT) and movement time (MT) in response to accuracy changes.

Main Methods:

Three groups of 12 subjects performed a dot-crossing task on a moving paper strip.
Participants responded to auditory tones by crossing zero, one, or two dots sequentially.
Reaction time (RT) and movement time (MT) were measured under different accuracy demands.

Main Results:

Reaction time (RT) increased significantly when accuracy demand rose from crossing zero to one dot.
Movement time (MT) increased significantly when accuracy demand rose from crossing one to two dots.
RT did not increase further when moving from one to two dots, suggesting different processing stages.

Conclusions:

Reaction time (RT) appears to involve the programming of movement initiation.
Movement time (MT) seems to incorporate programming for the ongoing response.
Accuracy demand differentially influences the reaction time and movement time components of motor responses.