Vision & Cognition Seminar // Anne Giersch - A disruption of the prediction of sequences at the ms level in schizophrenia: a mechanism for altered immersion in the world?
Event details
Date | 15.03.2019 |
Hour | 16:30 › 17:30 |
Speaker | Anne Giersch INSERM U1114, University Hospital of Strasbour |
Location |
SV2510
|
Category | Conferences - Seminars |
The feeling of being one continuous individual in time is a natural evidence, which is disturbed in patients with schizophrenia, who feel disconnected from the environment. I will describe clinical reports suggesting a disruption of the sense of time continuity in schizophrenia, associated with a disruption of the sense of self, and of the feeling of being immersed in the world. I will show how we objectified timing disorders in patients, while trying to understand the mechanisms underlying the sense of time continuity. Patients are impaired at detecting asynchronies and ordering stimuli, suggesting distortions in the temporal structure of consciousness. The amplitude of the impairments led us to explore timing at a non-conscious level. We showed that in healthy subjects events are distinguished in time automatically even when subjectively judged as being simultaneous. Our most recent data, based on sequential effects, suggests that sequences of future visual information are predicted and allow subjects to allocate attention in the right place and right time. We will argue that a close synergy between non-conscious prediction of sequences and attention is necessary for the sense of immersion in the environment and the feeling of time continuity to emerge. Conversely, both behavioral and EEG data suggest that time prediction is impaired in patients with schizophrenia with bodily self disorders, and especially the production of sequences at the millisecond level. I will propose possible therapeutic developments for the patients.
Practical information
- Informed public
- Free
Organizer
- SV BMI LPSY- Herzog lab