BrainHygge talk in March will be by: 
Almudena Capilla
Autonomous University of Madrid, Spain

Title: "The role of the brain’s natural frequencies in resting-state network connectivity"

ABSTRACT:

According to the most influential theories in cognitive neuroscience, electromagnetic oscillations are a key element of the communication language of neural networks. Gaining a deeper knowledge of brain oscillations is therefore essential for unraveling the functional architecture of the human brain. To contribute to this goal, we have generated a detailed atlas of the typical or natural frequencies of the human brain at rest. This atlas reveals that intrinsic oscillations exhibit a specific regional organization, structured along two gradients of increasing frequency, one medial-to-lateral and the other posterior-to-anterior. However, an outstanding question is what role the brain’s natural frequencies play in network connectivity. Resting-state networks (RSNs) are consistently observed in fMRI studies, yet their electrophysiological counterpart remains elusive. Seminal studies indicated that connectivity between RSN nodes is indexed by frequency-specific power envelope correlations within the alpha and beta frequency bands. Interestingly, our ongoing work shows that RSNs can also be recovered from the co-occurrence of oscillatory episodes in the alpha/beta range, in agreement with the recent view that oscillations arise as transient events and that the coincidence of oscillatory bursts might serve as an index of functional connectivity. Our current research is focused on investigating the specific frequencies involved when oscillatory episodes co-occur in different RSN nodes, to determine whether they correspond to their natural frequencies.

Read more about Almudena Capilla:
http://www.ahnfmed.uam.es/profesores-master/almudena-capilla.html

ALL ARE WELCOME