Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. The variability of contact position errors in apraxic imitation
 
conference poster not in proceedings

The variability of contact position errors in apraxic imitation

Petreska, Biljana  
•
Schneider, Laurence
•
Buttet Sovilla, Jocelyne
Show more
2010
Society for Neuroscience Meeting (SfN 2010)

Apraxia is a poorly understood disorder of voluntary movement that is not due to basic sensory, motor or cognitive deficits. We conducted a study on the imitation of meaningless gestures in apraxic patients with left fronto-temporo-parietal lesions. In a first condition, the patients were instructed to imitate the orientation and position of a hand touching the face (complex task). In a second condition, the patients were instructed to solely imitate the position of contact between the face and hand, using any orientation of the hand (simple task). We did not observe contact position errors (CPEs) in the simple task, which argues in favor of preserved spatial and motor representations of the body. However, the patients made a substantial amount of CPEs in the complex task, indicating a misuse of these spatial and motor representations of the body when the task involved several imitation goals (e.g. the thumb touches the nose and the hand is oriented vertically). The error variability was remarkably low across trials. Most of the CPEs could be explained by an incorrect coordination between the reproductions of multiple imitation goals. If simple movements are easier to imitate and less prone to errors, an efficient rehabilitation therapy may use movements of increasing complexity.

  • Details
  • Metrics
Type
conference poster not in proceedings
Author(s)
Petreska, Biljana  
Schneider, Laurence
Buttet Sovilla, Jocelyne
Billard, Aude  
Aeschlimann, Mélanie
Date Issued

2010

Subjects

apraxia

•

imitation

•

reaching

URL

URL

http://www.sfn.org/AM2010/
Written at

EPFL

EPFL units
LASA  
Event nameEvent placeEvent date
Society for Neuroscience Meeting (SfN 2010)

San Diego, California, USA

November 13-17, 2010

Available on Infoscience
September 10, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/53563
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés