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A Fully Automated Rodent Conditioning Protocol for Sensorimotor Integration and Cognitive Control Experiments

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Errors in motor responding, "rapid" corrections, and false anticipations.

R A Schmidt¹, G B Gordon

¹a Department of Physical Education , University of Southern California.

Journal of Motor Behavior

|August 17, 2013

Summary

This summary is machine-generated.

Errors in step-tracking are not caused by temporal anticipation, but by false spatial anticipation. This study suggests error correction occurs upon stimulus detection, not internal monitoring.

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Area of Science:

Cognitive Psychology
Neuroscience
Human Motor Control

Background:

Step-tracking tasks are used to study motor control and error correction.
Previous hypotheses suggested internal monitoring mechanisms, like efference copy, explain error correction.

Purpose of the Study:

To investigate the role of temporal and spatial anticipation in step-tracking errors.
To test whether errors are caused by false anticipation or other mechanisms.
To propose an alternative hypothesis for error detection and correction.

Main Methods:

Experiment 1: Temporal anticipation was manipulated to assess its necessity for error production.
Experiment 2: Spatial expectancies were manipulated, with occasional deviations, to induce errors.
Analysis focused on error patterns and their relation to anticipatory cues.

Main Results:

Eliminating temporal anticipation did not prevent errors, indicating it's not essential for error production.
Introducing strong spatial expectancies, with deviations, led to errors, supporting false spatial anticipation.
Data align with a model where errors are detected upon stimulus onset.

Conclusions:

False spatial anticipation, not temporal anticipation, is a key factor in step-tracking errors.
Error correction likely involves detecting errors at stimulus onset.
This finding challenges previous models relying on internal efference monitoring.