A predictive coding perspective on oscillatory traveling waves

Andrea Alamia, Centre de Recherche Cerveau et Cognition (CerCo), CNRS, Université de Toulouse, Toulouse, France

This talk presents a few studies that aim to interpret oscillatory travelling waves in the predictive coding framework. In the first part, I’ll introduce a simple model of the visual cortex based on predictive coding mechanisms, in which physiological communication delays between levels generate alpha-band rhythms. Interestingly, these oscillations propagate as traveling waves across levels, both forward (during visual stimulation) and backward (during rest). Remarkably, experimental EEG data matched the predictions of our model. In the second part of the talk, I’ll present two studies that indirectly investigate the link between predictive coding mechanisms and traveling waves experimentally: the first one investigates the effect of a powerful psychedelics drug, N,N, dimethyltryptamine (DMT), on alpha-band oscillations, and the second one interprets the pattern of oscillatory traveling waves in schizophrenic patients in the light of Predictive Coding. In the last part of the talk, I will show some (very) preliminary results on a statistical learning paradigm that directly explores the link between traveling waves and predictive coding processes.

The 2024 Summer Research Symposium, sponsored by the College, will be held on Thursday, August 1 andFriday, August 2, from 11:00am – 1:00pm in Sayles Hall.

Undergraduate research and curricular projects conducted throughout this summer will be on display for review and questions. All are welcome!

Speaker: Jae-Young Son
Title: Abstraction underlies inferential representation of social networks

Advisor: Oriel FeldmanHall

Location: Friedman Auditorium, and via Zoom: https://brown.zoom.us/j/98723377994

Please join organizers Rob Sobol, Pat Dubielecka and Ian Wong for a mini-symposium on:

Exploring the Interface of Cancer Biology & Bioengineering

70 Ship Street,Room 107

August 2, 2024

Agenda

8:30 - 9:00 Breakfast

Engineering Therapeutics

9:00- 9:15 Intro by WafikS. El-Deiry, MD, PhD, FACP

9:15- 9:45 Speaker 1 - Tejal Desai, Ph.D.

9:50- 10:10 Speaker 2 - Theresa Raimondo, Ph.D.

10:10- 10:30 Speaker 3 - Sean Lawler, Ph.D.

10:30 - 11:00 Break, Networking &poster viewing

Imaging Cells and Matrix

11:00- 11:20 Speaker 4 - Ian Wong, Ph.D.

11:20- 11:40 Speaker 5 - Zixi Lin, Ph.D.

11:40- 12:00 Speaker 6 - Michelle Dawson, Ph.D.

12:00- 12:20 Speaker 7 - Rob Sobol, Ph.D.

12:20 - 1:30 Lunch

12:30- 1:00 Speaker 8 - Shiyoko Cothren

Single Cell Analyses

1:30- 1:50 Speaker 9 - Nikos Tapinos, Ph.D.

1:50- 2:10 Speaker 10 - Anubhav Tripathi, Ph.D.

2:10- 2:30 Speaker 11 - Megan Kizer, Ph.D.

2:30- 2:50 Speaker 12 - Patrycja Dubielecka, PhD

3:00 - 3:15 Future Directions & Closing Remarks

The 2024 Summer Research Symposium, sponsored by the College, will be held on Thursday, August 1 andFriday, August 2, from 11:00am – 1:00pm in Sayles Hall

Undergraduate research and curricular projects conducted throughout this summer will be on display for review and questions. All are welcome!

Join the Brown Data Science Institute for the 2024 Women in Data Science Providence Conference on Oct 18 at the Petteruti Lounge. 

The conference will include a keynote speaker, panels on careers in data science, a networking lunch, and student lightning talks. 

Keynote Speaker: Simona Cristea, Head of Data Science at the Hale Family Center for Pancreatic Cancer Research.

Speakers and panelists to be announced. Full schedule coming soon. 

Please RSVP in advance.