caa a22 4500 463177371 CHVBK 20180406164829.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10339-007-0175-x doi (NATIONALLICENCE)springer-10.1007/s10339-007-0175-x Composition of brain oscillations and their functions in the maintenance of auditory, visual and audio-visual speech percepts: an exploratory study [Elektronische Daten] [Alexander Fingelkurts, Andrew Fingelkurts, Christina Krause] In the present exploratory study based on 7 subjects, we examined the composition of magnetoencephalographic (MEG) brain oscillations induced by the presentation of an auditory, visual, and audio-visual stimulus (a talking face) using an oddball paradigm. The composition of brain oscillations were assessed here by analyzing the probability-classification of short-term MEG spectral patterns. The probability index for particular brain oscillations being elicited was dependent on the type and the modality of the sensory percept. The maintenance of the integrated audio-visual percept was accompanied by the unique composition of distributed brain oscillations typical of auditory and visual modality, and the contribution of brain oscillations characteristic for visual modality was dominant. Oscillations around 20Hz were characteristic for the maintenance of integrated audio-visual percept. Identifying the actual composition of brain oscillations allowed us (1) to distinguish two subjectively/consciously identical mental percepts, and (2) to characterize the types of brain functions involved in the maintenance of the multi-sensory percept. Marta Olivetti Belardinelli and Springer-Verlag, 2007 Audio-visual percept maintenance nationallicence McGurk effect nationallicence Short-term spectral patterns nationallicence Theta, alpha, beta oscillations nationallicence MEG nationallicence Adaptive classification nationallicence Brain functions nationallicence Fingelkurts Alexander BM-SCIENCE-Brain and Mind Technologies Research Centre, P.O. Box 77, 02601, Espoo, Finland aut Fingelkurts Andrew BM-SCIENCE-Brain and Mind Technologies Research Centre, P.O. Box 77, 02601, Espoo, Finland aut Krause Christina Department of Psychology, Cognitive Science Unit, University of Helsinki, PB 9, 00014, Helsinki, Finland aut Cognitive Processing Springer-Verlag 8/3(2007-09-01), 183-199 8:3<183 2007 8 10339 https://doi.org/10.1007/s10339-007-0175-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10339-007-0175-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fingelkurts Alexander BM-SCIENCE-Brain and Mind Technologies Research Centre, P.O. Box 77, 02601, Espoo, Finland aut NATIONALLICENCE 700 1- Fingelkurts Andrew BM-SCIENCE-Brain and Mind Technologies Research Centre, P.O. Box 77, 02601, Espoo, Finland aut NATIONALLICENCE 700 1- Krause Christina Department of Psychology, Cognitive Science Unit, University of Helsinki, PB 9, 00014, Helsinki, Finland aut NATIONALLICENCE 773 0- Cognitive Processing Springer-Verlag 8/3(2007-09-01), 183-199 8:3<183 2007 8 10339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer