Title: Novel signaling interactions for axon guidance through DCC family receptors

Advisor:  Dr. Alexander Jaworski

Michael S. Goodman ’74 Memorial Seminar Series.

Speaker: Amaro Tuninetti - PhD Student - CLPS Department - Brown University
 
Title: Effects of unpredictability on a broadband echolocating bat

Abstract: Echolocating bats perceive and navigate their environment by emitting ultrasonic pulses and hearing the echoes produced by acoustically reflective surfaces around them. This process requires bats to have highly flexible and rapid control of their temporal and spatial sampling strategies. Due to the range limitations of ultrasound and the environments in which they navigate and forage, bats are often confronted with sudden and unpredictable changes in their sensory experience. To understand how bats react to these unpredictable changes, we conducted a series of behavioral, psychophysical, and neural experiments on a model broadband echolocator, the big brown bat (Eptesicus fuscus). These experiments help provide a holistic view of how this biosonar model responds to changes in environment, target location, and echo acoustic parameters.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

Valentin Wyart (Ecole Normale Supérieure - PSL University, Paris, France)

Making sense of uncertain environments, a cognitive process modeled across domains as statistical inference, constitutes a difficult yet ubiquitous challenge for human intelligence. Recent research has identified the limited computational precision of human inferences as a surprisingly large contributor to the variability of perceptual and reward-guided decisions made under uncertainty. In this talk, I will review the theoretical and experimental evidence obtained by my group which, taken together, provides key insights into the origin, impact and function of this cognitive noise for human learning and decision-making. Moving beyond the classical description of internal noise as a performance-limiting constraint for cognitive systems, I will present unpublished findings from recurrent neural networks and large datasets of human participants that delineate the adaptation and the emergent benefits of cognitive noise in response to specific forms of uncertainty.

The 25th Annual Mind Brain Research Day features a poster session, bag lunch, and keynote address, “Translating Brain Mechanisms of Fear to Understanding PTSD,” by Kerry Ressler, MD, PhD, of McLean Hospital and Harvard Medical School. Sponsored by the Department of Psychiatry and Human Behavior and the Carney Institute for Brain Science. Register by March 15 to attend. 

Poster Session
11 a.m. - 12:45 p.m.
Sayles Hall

Lunch
11:30 a.m. - 12:45 p.m.
Sayles Hall
*You must RSVP to reserve a lunch.*

Keynote Address & Poster Awards
1 p.m. - 3 p.m.
Salomon Hall

Associate Professor Mariano Viapiano from the SUNY Upstate Medical University will present “Brain Cancer: Finding New Targets Outside the Tumor Cells”. This lecture is part of the 2023 Pathobiology Graduate Program Spring Seminar Series. ​​

Title: Molecular and circuit mechanisms linking social stress to addiction

Host:  Dr. Karla Kaun

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

Join the Carney Institute for the Brain Science for its External Postdoc Seminar Series (BrainExpo), featuring Feng-Kuei Chiang, Postdoctoral Fellow at Icahn School of Medicine at Mount Sinai.

Abstract: Cognitive strategies, such as processing information in sequences, can improve behavioral performance in working memory tasks, but how this is accomplished at the neural level remains unclear. Here we created a non-human primate model of self-generated search strategies to study prefrontal functions and found that sequencing strategies shift information from single, highly tuned neurons to more distributed population codes in lateral prefrontal cortex.

Title: The impact of acute delta-9-tetrahydrocannabinol (THC) on the alcohol-induced inflammatory response

Advisor:  Dr. Carolina Haass-Koffler

Michael S. Goodman ’74 Memorial Seminar Series.

Speaker: Annette D’Onofrio, Assistant Professor, Northwestern University

Title: Perceiving sound change reversal: Age-based dynamics in Chicago’s Northern Cities Vowel Shift

Abstract: Sound changes in progress are often hallmark features of regional dialects, becoming linked with local speakers and local social meanings. These changes are can be examined in apparent time through both age-based differences in production, and through listener age differences in perception. However, little is known about the ways in which sound changes that are reversing in production over time are perceived by community members. In this talk, I explore how listeners of various ages within one U.S. community in Chicago produce and perceive vowels implicated in the region’s characteristic Northern Cities Vowel Shift (NCS), which is undergoing reversal over time. Findings suggest that sociolinguistic perception is not simply a reflection of an individual’s static social position within a community, from which matched production and perceptual patterns are derived. Instead, a listener’s own positionality, experience, and ideas about others in their community can condition not only their sociolinguistic productions as speakers, but also their expectations as listeners.

Title: Imaging the brain at high spatiotemporal resolution

Host:  Dr. Ahmed Abdelfattah

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

Speaker: Meghan Willcoxon , PhD Candidate, Brown University

Title: Can you follow your friends? Effects of ensemble averaging, attention and grouping when following a crowd.

Advisor: Professor William Warren

All are invited ~ Please feel free to attend!

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

Johannes Lederer, Ph.D.,
Professor of Mathematical Statistics
Ruhr-University Bochum, Germany

Talk Title: Sparse Deep Learning

Abstract: Sparsity is popular in statistics and machine learning, because it can avoid overfitting, speed up computations, and facilitate interpretations. In deep learning, however, the full potential of sparsity still needs to be explored. This presentation first recaps sparsity in the framework of high-dimensional statistics and then introduces sparsity-inducing methods and corresponding theory for modern deep-learning pipelines.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

Join the Carney Institute for the Brain Science for its External Postdoc Seminar Series (BrainExPo), featuring Tristan Geiller, Postdoctoral Researcher at Columbia University.

Abstract: The hippocampus is a multi-stage neural circuit, where local interactions between excitatory principal cells and inhibitory interneurons are thought to contribute distinct computations important for memory formation and retrieval. The overarching goal of my research is to uncover the architecture of the local circuits that provides the scaffolding for such interactions, by developing and using variety of experimental methods in behaving mice. 

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.

This is a drop-in session where CCV staff members will be available to answer questions about Brown’s research computing resources (Oscar, Stronghold, Globus) and help with any high-performance computing (HPC) issues you might have.