Results
author = "Lefèvre, Philippe"
> : "UCL - SSS/IONS - Institute of NeuroScience"
(x)
Causality attribution biases oculomotor responses.
Description :
When viewing one object move after being struck by another, humans perceive that the action of the first object "caused" the motion of the second, not that the two events occurred independently. Although established as a perceptual and linguistic concept, it is not yet known whether the notion of ca...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Target motion direction influence on tracking performance and head tracking strategies in head-unrestrained conditions
Description :
We examined subjects' behavior when they tracked periodic oscillating targets moving along a randomly oriented ramp with the head free to move. This study focuses on the effect of target motion direction on pursuit performance and on head tracking strategies used by human subjects to coordinate eye ...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Smooth pursuit performance during target blanking does not influence the triggering of predictive saccades
Description :
Visually guided catch-up saccades during the pursuit of a moving target are highly influenced by smooth pursuit performance. For example, the decision to execute a saccade and its amplitude is driven by the difference in velocity between the eye and the target. In previous studies, we have demonstra...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Fixation patterns during recognition of personally familiar and unfamiliar faces
Description :
Previous studies recording eye gaze during face perception have rendered somewhat inconclusive findings with respect to fixation differences between familiar and unfamiliar faces. This can be attributed to a number of factors that differ across studies: the type and extent of familiarity with the fa...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Biological motion drives perception and action.
Description :
Presenting a few dots moving coherently on a screen can yield to the perception of human motion. This perception is based on a specific network that is segregated from the traditional motion perception network and that includes the superior temporal sulcus (STS). In this study, we investigate whethe...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Face inversion impairs holistic perception : evidence from gaze-contingent stimulation
Author(s) :
Van Belle, Goedele
,
De Graef, Peter
,
Verfaillie, Karl
,
Rossion, Bruno
,
Lefèvre, Philippe
Description :
Human observers are experts at face recognition, yet a simple 180 degrees rotation of a face photograph decreases recognition performance substantially. A full understanding of this phenomenon-which is believed to be important for clarifying the nature of our expertise in face recognition-is still w...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Improving the state estimation for optimal control of stochastic processes subject to multiplicative noise
Description :
Computational models for the neural control of movement must take into account the properties of sensorimotor systems, including the signal-dependent intensity of the noise and the transmission delay affecting the signal conduction. For this purpose, this paper presents an algorithm for model-based ...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Grip force regulates hand impedance to optimize object stability in high impact loads
Author(s) :
White, O.
,
Thonnard, Jean-Louis
,
Wing, A. M.
,
Bracewell, R. M.
,
Diedrichsen, J.
,
Lefèvre, Philippe
Description :
Anticipatory grip force adjustments are a prime example of the predictive nature of motor control. An object held in precision grip is stabilized by fine adjustments of the grip force against changes in tangential load force arising from inertia during acceleration and deceleration. When an object i...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Review of the major findings about Duane Retraction Syndrome (DRS) leading to an updated form of classification.
Description :
In view of all the reported evidence by electromyography in the 1970s, by histology in the 1980s, and by cerebral imagery since the 2000's, Duane Retraction Syndrome (DRS) has been described as the consequence of a congenital anomaly of the VIth cranial nerve nuclei with aberrant innervations by sup...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English
Sensorimotor Mapping for Anticipatory Grip Force Modulation
Description :
Crevecoeur F, Thonnard J-L, Lefevre P. Sensorimotor mapping for anticipatory grip force modulation. J Neurophysiol 104: 1401-1408, 2010. First published June 23, 2010; doi:10.1152/jn.00114.2010. During object manipulation, predictive grip force modulation allows compensation for inertial forces indu...
Repository :
DIAL - Dépôt Institutionnel de l'Académie Louvain
Language(s) :
English