Conrado Vittini MD

Conrado Bosman Vittini has been an Assistant Professor at the CSN group within the Swammerdam Institute for Life Sciences since 2011. He received his Medical Doctorate Degree (M.D.) from the University of Chile in 2000 and his Ph.D., under the supervision of Francisco Aboitiz, from the Catholic University of Chile in 2005. During his Ph.D., he studied EEG oscillatory dynamics in Schizophrenia patients. In 2005, he moved to Nijmegen to work at the Donders Institute for Brain, Behaviour, and Cognition. He focused on the role of long-range neuronal synchronization and visual attention. At the Donders Institute, we developed a 252–channel electrocorticogram (ECoG)–array, which we used to record LFP responses in several areas simultaneously. Using Granger causality analyses, we demonstrated that gamma synchronization between V1 and V4 is essentially feedforward (bottom-up). Conversely, beta (14—18 Hz) oscillations convey synchronous feedback relationships between brain areas, distributed to the entire visual hierarchy. These contributions helped to understand the mesoscale mechanisms contributing to cognitive functions and perception.