Unconscious cues bias first saccades in a free-saccade task |
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| Institution: | 1. Neuroscience and Behavioral Disorders Program, Duke-NUS Graduate Medical School, Singapore, Singapore;2. Department of Psychology, National University of Singapore, Singapore, Singapore;1. Department of Psychological Sciences & Center for the Study of Lifespan Development, Western Kentucky University, Bowling Green, KY 42101-1030, USA;2. Department of Psychological Sciences, Western Kentucky University, Bowling Green, KY 42101-1030, USA;1. Hunter College, The City University of New York, USA;2. The Graduate Center, The City University of New York, USA;1. Humboldt-Universität zu Berlin, Institut für Psychologie, Berlin, Germany;2. Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, Berlin, Germany;1. Department of Psychology, College of Science, National Taiwan University, Taipei 10617, Taiwan;2. Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan;3. Neurobiology and Cognitive Science Center, National Taiwan University, Taipei 10617, Taiwan;4. Center for Artificial Intelligence and Advanced Robotics, National Taiwan University, Taipei 10617, Taiwan;5. Department of Neurology, College of Medicine, National Taiwan University Hospital, Taipei 10048, Taiwan;1. University of British Columbia, Department of Ophthalmology and Visual Sciences and Centre for Brain Health, 818 W10th Avenue, Vancouver, BC V5Z 1M9, Canada;2. New York University, Department of Psychology and Center for Neural Science, 6 Washington Place, New York, NY 10003, USA |
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| Abstract: | Visual–spatial attention can be biased towards salient visual information without visual awareness. It is unclear, however, whether such bias can further influence free-choices such as saccades in a free viewing task. In our experiment, we presented visual cues below awareness threshold immediately before people made free saccades. Our results showed that masked cues could influence the direction and latency of the first free saccade, suggesting that salient visual information can unconsciously influence free actions. |
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| Keywords: | Free saccade Unconscious perception Visual awareness Decision making |
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