CIAIC Seminar 2025-02-17 Rodrigo Braga

“Detailed Functional Anatomy of Large-Scale Brain Networks Revealed by Precision fMRI at 7T”

Rodrigo M. Braga, PhD - Assistant Professor, Northwestern University

Abstract: In this talk, I will present recent insights into the functional organization of large-scale brain networks, derived from analysis of high-resolution neuroimaging data. By defining brain networks within individuals ("Precision fMRI") and further enhancing spatial resolution through 7T MRI, we have uncovered neuroanatomical details that were previously inaccessible, including the discovery of small network regions within the medial temporal lobe, including specific amygdala subnuclei. These discoveries offer insights into the subcortical foundations of broader functional differences between large-scale neocortical networks in the human brain.

Biography: Dr. Rodrigo Braga studies the organization of large-scale brain networks and their role in supporting cognitive functions such as language and memory. His research leverages advanced functional MRI techniques, including precision fMRI and ultra-high field 7T imaging, to reveal fine-grained, idiosyncratic details of brain network architecture unique to each individual. This approach has uncovered new insights into the functional neuroanatomy of the human brain and advances the personalization of functional brain mapping for clinical applications. Ongoing work focuses on applying personalized brain network mapping to the study of neurodegenerative and vascular brain diseases, as well as integrating these maps with intracranial recordings (iEEG/ECoG) and intracranial electrical stimulation to further explore the neural basis of cognition.