Research focus

How oscillations shape the functional architecture of the working brain
The 'Neuronal Oscillations' research group is situated at the Centre for Cognitive Neuroimaging at the Donders Institute for Brain Cognition and Behavior. The group is headed by Prof. dr. Ole Jensen

The main goal of the 'Neuronal Oscillations' research group is to understand how oscillatory activity shapes the functional architecture of the working brain during cognitive processing. While modulations of alpha band oscillations (8-13 Hz) reflect anticipatory top-down modulation, bottom-up processing is reflected by gamma band synchronization (30-100 Hz). Specifically, the core
 hypothesize states that neuronal communication is gated by the inhibition of task-irrelevant regions, thus routing information to task-relevant regions. The functional inhibition is reflected by alpha band oscillations. From a physiological perspective, the alpha oscillations provide pulsed inhibition reducing the processing capabilities of a given area. Processing is reflected by neuronal synchronization in the gamma band which is phasically modulated by the alpha oscillations. According to this framework the brain can be studied as a network by investigating cross-frequency interactions between gamma and alpha activity. The research tools applied by the group include computational modeling, MEG
EEG combined with fMRI, EEG combined with TMS and intracranial recordings. These tools are applied to investigate and interpret data from humans and animals performing 
attention and memory tasks. Further we investigate these mechanism to understand the basis of attention problems in ADHD patients and the aging population. 

News

  • paper accepted in eLife Staresina, B.P., Bonnefond, M., Michelmann, S., Jensen, O., Axmacher, N., and Fell, J. (in press) Hippocampal pattern completion is linked to gamma power increases and alpha power decreases during recollection. eLife
    Posted Aug 1, 2016, 11:23 PM by Ole Jensen
  • Mathilde Bonnefond receives ATIP-Avenir grant This will allow her to establish a research group in connection with her INSERM position in Lyon
    Posted Jun 27, 2016, 9:46 PM by Ole Jensen
  • Tom Marshall receives a Rubicon fellowship This will support a postdoctoral research position in the UK
    Posted Jun 27, 2016, 9:44 PM by Ole Jensen
  • Paper accepted in Scientific Reports Park, H., Lee, D.S., Kang, E., Kang, H., Hahm, J., Kim, J.S., Chung, C.K., Jiang, H., Gross, J., and Jensen, O. (accepted)Formation of visual memories controlled by gamma power phase-locked to alpha oscillations. Scientific Reports
    Posted May 27, 2016, 11:51 PM by Ole Jensen
  • paper accepted in Neuroimage van de Nieuwenhuijzen, M.E, Axmacher, N., Fell, J., Oehrn, C.R., Jensen, O., and van Gerven, M.A.J. (accepted) Decoding of task-relevant and task-irrelevant intracranial EEG representations. Neuroimage
    Posted May 3, 2016, 1:57 PM by Ole Jensen
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Background information:

Opinion: Jensen, O., Gips, B., Bergmann, T.O. and Bonnefond, M. (2014) Temporal coding organized by coupled alpha and gamma oscillations prioritize visual processing. Trends in Neurosciences

Review: Jensen, O. and Mazaheri, A. (2010) Shaping functional architecture by oscillatory alpha activity: gating by inhibition. Front Hum Neurosci 4:186. 

Weekly events

Group meeting
Neuosc Group. Wednesdays 11 am

Discussion clubs
System neuroscience journal club. Mondays 11 am