Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Action and awareness in pointing tasks.

Helen Johnson1, Robert J Van Beers, Patrick Haggard

  • 1Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London WC1N 3AR, England. helen.johnson@ucl.ac.uk

Experimental Brain Research
|October 2, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Neural Mechanisms of Self-Generated Action Sequences.

eNeuro·2026
Same author

Neural adaptation to climate change: mechanisms, limits and opportunities.

Nature reviews. Neuroscience·2026
Same author

Performance evaluation of RespiCast ensemble forecasts for primary care syndromic indicators of viral respiratory disease in Europe.

medRxiv : the preprint server for health sciences·2026
Same author

Cognitive mechanisms underlying sense of agency: Meta-analytic reviews of behavioral and neuroimaging studies.

Psychological bulletin·2025
Same author

Interoception vs. Exteroception: Cardiac interoception competes with tactile perception, yet also facilitates self-relevance encoding.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Electrical Spinal Imaging: A noninvasive, high-resolution approach that enables electrophysiological mapping of the human spinal cord.

PLoS biology·2025
Same journal

Changes in synergy formation and modulation during cyclic finger force production tasks in female adults with dystonic cerebral palsy.

Experimental brain research·2026
Same journal

Molecular links between reelin downregulation, topoisomerase IIβ alterations, and proteins involved in Alzheimer pathology in human SH-SY5Y neuroblastoma cell line.

Experimental brain research·2026
Same journal

Motor cortex excitability during spine shape-judgment in adolescent idiopathic scoliosis: a TMS motor evoked potential study.

Experimental brain research·2026
Same journal

Trajectory dynamics and endpoint accuracy in targeted ballistic contractions.

Experimental brain research·2026
Same journal

Exploring Sevoflurane promotes hippocampal neuron mitophagy in elderly postoperative cognitive dysfunction by HSP90AA1 based on network pharmacology.

Experimental brain research·2026
Same journal

Loading modulates monosynaptic transmission from spindle primary afferents to motoneurons in humans.

Experimental brain research·2026
See all related articles

Motor corrections during reaching movements were studied. Results show that while standard pointing corrections are partly automatic with delayed awareness, anti-pointing corrections involve a slower supervisory system with greater conscious awareness.

Area of Science:

  • Motor control
  • Human movement science
  • Cognitive neuroscience

Background:

  • Motor corrections are crucial for adapting to unexpected environmental changes during movement.
  • Understanding the awareness of these motor corrections is key to understanding sensorimotor control.

Purpose of the Study:

  • To investigate subjects' awareness of motor corrections in a double-step pointing task.
  • To differentiate the awareness of automatic versus instructed motor corrections.

Main Methods:

  • A double-step pointing task with unpredictable lateral target displacements was used.
  • Subjects performed both standard pointing (following the target) and anti-pointing (moving opposite to the target).
  • Movement reproduction was used to assess awareness of motor corrections.

Related Experiment Videos

Main Results:

  • Rapid motor corrections occurred towards the target displacement, even in anti-pointing trials.
  • Standard pointing corrections showed delayed and reduced awareness, suggesting automaticity.
  • Anti-pointing corrections did not exhibit this dissociation, indicating different underlying mechanisms.

Conclusions:

  • Standard pointing corrections appear to be at least partly automatic.
  • Anti-pointing corrections may involve an additional, slower supervisory system with conscious access.
  • This suggests distinct neural pathways for automatic and consciously controlled motor adjustments.