DÉPARTEMENT DE MÉDECINE
DEPARTEMENT FÜR MEDIZIN
DEPARTMENT OF MEDICINE

Back to RESEARCH

       
 

Principal Investigator

BRESCIANI Jean-Pierre

Associate Professor of
Movement Sciences


jpb

       
 
-
 
       
  Research Topics • Motion perception
• Motor control
 
       
  Subtopics    
       
 

Questions addressed

We are interested in how humans perceive and control their movements. More specifically:
Motion perception
Several sensory channels provide us with information about our body orientation and movements relative to the environment. In particular, vision and the vestibular system play a major role in the perceived speed and amplitude of these movements. We investigate how visual and vestibular signals are integrated for motion perception, but also how this perception is influenced by visual 'parameters' such as the size and nature of the field of view, the structure of the scene, or the contrast of visual information. We use virtual environments in which we combine actual body motion and simulated motion of the environment, and we manipulate both high- and low-level visual features.
Motor control
While acting in the environment, whether we are walking, standing, or reaching for an object, afferent information provided by our senses is processed continuously to supervise the ongoing action. If a discrepancy is detected between the desired and the predicted outcome of the action (e.g., motor error or unexpected perturbation), the motor command can be modulated online to 'correct' the detected error and preserve chances of reaching the desired outcome. We investigate how vision, proprioception and the vestibular system interact to achieve this control in humans. We use basic motor tasks such as reaching or postural control; and we test subjects' ability to react to external events disturbing the action. We also investigate how much of control is influenced by cognition (e.g., role of pre-cueing) or other 'high-level' factors such as visual illusions.

 
       
  Keywords • Motion
• Posture
• Proprioception
• Reaching
• Vestibular system
• Virtual reality
• Vision
 
       
  Contact Email address jean-pierre.bresciani [at] unifr.ch  
       
  Personal site http://unifr.ch/med/copelab/  
   

top

 
University of Fribourg  •  Faculty of science  •  Department of Medicine  •  Ch. du Musée 8  •  CH-1700 Fribourg
tel +41 26 / 300 8490  •  fax +41 26 / 300 9610  •  secretariat  •  Swiss University