Symposium (S1): The Scope and Limits of Visual Processing under Continuous Flash SuppressionMonday 26 August 2013, 09:00-11:00, Kaisen | |
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| Organizer: G Hesselmann, M N Hebart Continuous flash suppression (CFS) is a relatively novel behavioral method for the investigation of unconscious visual processing. By presenting continuously flashing masks to one eye, it is possible to suppress stimuli shown on the other eye for extended periods of time, even when shown at fixation. Since its conception (Tsuchiya & Koch, 2005), numerous experiments using CFS have produced a rich body of behavioral and neuroimaging data on the scope and limits of visual processing in the absence of conscious awareness. Eight years later, the partly conflicting results now offer a multifaceted picture of what information can escape interocular suppression by CFS and influence overt behavior. In this symposium, we will discuss recent developments and major questions concerning unconscious processing during CFS. For example, it has been suggested that CFS selectively disrupts ventral visual processing while leaving dorsal stream processing intact. However, recent evidence challenges this dichotomy by showing preserved ventral stream processing. After a brief overview of the possible applications of CFS, the symposium speakers will provide recent examples of the use of CFS and in that way illustrate the breadth of experimental approaches using this method. The symposium ends with a discussion between the speakers and the auditorium on the scope and limits of unconscious processing during CFS. Apart from experienced researchers using CFS, we also want to provide a platform for young scientists that only recently have started working with this technique. We do believe, therefore, that a lively and controversial discussion will ensue. | |
| 09:00 | Introduction |
| 09:05 | Probing unconscious perception: a comparison of CFS, masking and crowding S Kouider |
| 09:20 | A novel technique to study visual processing in the objective absence of awareness M Rothkirch, P Sterzer |
| 09:35 | Posing for awareness: Proprioception modulates access to visual consciousness in a continuous flash suppression task R Salomon, M Lim, B Herbelin, O Blanke |
| 09:50 | Learning to detect but not to grasp suppressed visual stimuli K Ludwig, P Sterzer, N Kathmann, V H Franz, G Hesselmann |
| 10:05 | Unconscious processing under CFS: Getting the right measure T Stein |
| 10:20 | What individual differences in suppression by CFS tell us about social evaluation of faces B Bahrami, S Getov, J Winston, R Kanai, G Rees |
| 10:35 | Discussion |
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