The Vermont Complex Systems speaker series returns:
Davis Center, 4th floor, Chittenden Bank Room (413), 12-1pm Wednesday, February 22nd
There will be pizza, drinks, and dessert. And also the talk.
Giovanni Petri, Principle Researcher at the ISI Foundation, Turin, Italy
“Functional topology of brain ageing and altered states”
Topology provides an expressive and affordable language for studying many natural and physical systems. Using examples from
our work on complex and brain functional networks, I will illustrate the types of novel insights that algebraic topological
tools, e.g., persistent homology, are providing. In particular, I will show how persistent homology is able to differentiate
between brain states recorded in resting-state fMRI in control subjects and in subjects injected with psilocybin, providing
support for the hypothesis that psychedelic drugs act by perturbing the usual balance between segregation and integration of
brain activity towards greater integration. Furthermore, I will demonstrate how the comparison of homological features of
structural and functional brain networks across a large age span highlights the presence of dynamically coordinated functional
topology compensation mechanisms. Lastly, I will discuss preliminary work on functional topology under a second psychedelic,
LSD, which appears to produce topological alterations qualitatively much closer to those observed in our aging study, as
compared to those observed under psilocybin.
We are hiring!
Four Five Tenure-Track Positions in Computer Science & Complex Systems, details here. Applications will be accepted until filled.
Learn more about our new MS in Complex Systems and Data Science (CSDS). We are accepting applications on a rolling basis.
At UVM, we offer a Certificate of Graduate Study in Complex Systems as a complement to graduate degrees across campus, or as a stand-alone post-baccalaureate Graduate Certificate.
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