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Related Experiment Video

Updated: Jul 10, 2026

Measuring Attentional Biases for Threat in Children and Adults

Measuring Attentional Biases for Threat in Children and Adults

Published on: October 19, 2014

Attention to intention.

Hakwan C Lau¹, Robert D Rogers, Patrick Haggard

¹Department of Experimental Psychology, University of Oxford, Oxford, UK. chris.lau@psy.ox.ac.uk

Science (New York, N.Y.)

|February 21, 2004

Summary

This summary is machine-generated.

This study investigated the neural basis of voluntary action by examining brain activity during self-paced movements. Findings suggest the pre-supplementary motor area (pre-SMA) is crucial for representing our intentions to act.

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Area of Science:

Neuroscience
Cognitive Neuroscience
Motor Control

Background:

Voluntary action is fundamental to human behavior.
Understanding the neural mechanisms underlying intention formation is a key challenge in cognitive neuroscience.
The role of specific brain regions in representing intention remains debated.

Purpose of the Study:

To investigate the neural correlates of intention formation during self-paced voluntary actions.
To differentiate brain activity associated with the intention to move versus the awareness of movement execution.
To explore the functional connectivity between brain regions involved in action intention.

Main Methods:

Functional magnetic resonance imaging (fMRI) was employed to measure brain activity.
Participants performed self-paced movements under two attentional conditions: focusing on intention versus focusing on movement.
Analysis focused on identifying brain regions with differential activation and functional coupling between conditions.

Main Results:

Enhanced neural activity was observed in the pre-supplementary motor area (pre-SMA) when participants attended to their intention to move compared to attending to the movement itself.
Activations were also noted in the right dorsal prefrontal cortex and left intraparietal cortex.
Prefrontal cortex activity showed stronger functional coupling with pre-SMA activity than parietal activity.

Conclusions:

The findings support the role of the pre-SMA in the representation of intention.
The prefrontal cortex appears to play a significant role in modulating or interacting with intention representation in the pre-SMA.
This research provides insights into the neural basis of voluntary action and the formation of intentions.