Looking for discriminating is different from looking for looking’s sake
- Bieg, Hans-Joachim Max Planck Institute for Biological Cybernetics, Department of Human Perception, Cognition, and Action, Tübingen, Germany
- Bresciani, Jean-Pierre Laboratoire de Psychologie et Neurocognition, CNRS, UMR 5105, Université Pierre Mendes France, Grenoble, France - Department of Medicine, University of Fribourg, Switzerland
- Bülthoff, Heinrich H. Max Planck Institute for Biological Cybernetics, Department of Human Perception, Cognition, and Action, Tübingen, Germany - Department of Brain and Cognitive Engineering, Korea University, Seoul, Korea
- Chuang, Lewis L. Max Planck Institute for Biological Cybernetics, Department of Human Perception, Cognition, and Action, Tübingen, Germany
-
25.09.2012
Published in:
- PLoS ONE. - 2012, vol. 7, no. 9, p. e45445
English
Recent studies provide evidence for task-specific influences on saccadic eye movements. For instance, saccades exhibit higher peak velocity when the task requires coordinating eye and hand movements. The current study shows that the need to process task-relevant visual information at the saccade endpoint can be, in itself, sufficient to cause such effects. In this study, participants performed a visual discrimination task which required a saccade for successful completion. We compared the characteristics of these task-related saccades to those of classical target-elicited saccades, which required participants to fixate a visual target without performing a discrimination task. The results show that task-related saccades are faster and initiated earlier than target-elicited saccades. Differences between both saccade types are also noted in their saccade reaction time distributions and their main sequences, i.e., the relationship between saccade velocity, duration, and amplitude.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Médecine
- Language
-
- English
- Classification
- Biological sciences
- License
- License undefined
- Identifiers
-
- RERO DOC 30505
- DOI 10.1371/journal.pone.0045445
- Persistent URL
- https://folia.unifr.ch/unifr/documents/302522
Statistics
Document views: 21
File downloads:
- bre_ldd.pdf: 28