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X-ORIGINAL-URL:https://arni-institute.org
X-WR-CALDESC:Events for ARNI
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DTSTART;TZID=America/New_York:20250905T113000
DTEND;TZID=America/New_York:20250905T130000
DTSTAMP:20260504T143111
CREATED:20250902T145542Z
LAST-MODIFIED:20250902T145542Z
UID:1960-1757071800-1757077200@arni-institute.org
SUMMARY:CTN: Christine Constantinople
DESCRIPTION:Title: Neural circuit mechanisms of value-based decision-making \nAbstract: \nThe value of the environment determines animals’ motivational states and sets expectations for error-based learning. But how are values computed? We developed a novel temporal wagering task with latent structure\, and used high-throughput behavioral training to obtain well-powered behavioral datasets from hundreds of rats that learned the structure of the task. We found that rats use distinct value computations for sequential decisions within single trials. Moreover\, these sequential decisions are supported by different brain regions\, suggesting that distinct neural circuits support specific types of value computations. I will discuss our ongoing efforts to delineate how distributed circuits in the orbitofrontal cortex and striatum coordinate complex value-based decisions.
URL:https://arni-institute.org/event/ctn-christine-constantinople/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250908T150000
DTEND;TZID=America/New_York:20250908T160000
DTSTAMP:20260504T143111
CREATED:20250904T153618Z
LAST-MODIFIED:20250904T204910Z
UID:1976-1757343600-1757347200@arni-institute.org
SUMMARY:ARNI Continual Learning Working Group Project
DESCRIPTION:Zoom link: Upon request @arni@columbia.edu
URL:https://arni-institute.org/event/arni-continual-learning-working-group-project-9/
LOCATION:CSB 480\, Mudd Building\, 500 W 120th Street
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250912T113000
DTEND;TZID=America/New_York:20250912T130000
DTSTAMP:20260504T143111
CREATED:20250902T195737Z
LAST-MODIFIED:20250909T154600Z
UID:1963-1757676600-1757682000@arni-institute.org
SUMMARY:CTN: Naomi Leonard
DESCRIPTION:Title:\nFast and Flexible Group Decision-Making \nAbstract:\nA wide range of animals live and move in groups. Many animals do better in groups than alone when\, for example\, foraging for food\, migrating\, and avoiding predators. A key to group success is social interaction. Less well understood is how a group\, with no centralized control\, is capable of the fast and flexible decision-making required to carry out its tasks in an environment with uncertainty\, variability\, and rapid change. I will introduce an approach to modeling group decision-making dynamics that draws on biophysical models from computational neuroscience. Analysis of our model provides new insights into fast and flexible decision-making: how indecision can be broken as fast as it becomes costly\, how sensitivity to stimulus can be tuned as context and environment change\, how social heterogeneity can enhance stability and flexibility\, and how excitability (spiking) provides further agility and frugality. I will discuss the significance of these results for the study and design of collective intelligence in nature and technology.
URL:https://arni-institute.org/event/ctn-naomi-leonard/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250915T150000
DTEND;TZID=America/New_York:20250915T160000
DTSTAMP:20260504T143111
CREATED:20250910T204507Z
LAST-MODIFIED:20250910T204507Z
UID:1988-1757948400-1757952000@arni-institute.org
SUMMARY:ARNI Continual Learning Working Group Project
DESCRIPTION:Monday (9/15) the Continual Learning Group will have a presentation from group member Yunfan Zhang.  Yunfan will be sharing his ongoing work on developing a continual learning benchmark based on deriving up-to-date facts from news over time.\n\n\nDate: Monday\, September 15\nTime: 3-4pm\nRoom: CSB 480\nZoom: upon request @ arni@columbia.edu
URL:https://arni-institute.org/event/arni-continual-learning-working-group-project-11/
LOCATION:CSB 480\, Mudd Building\, 500 W 120th Street
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250919T113000
DTEND;TZID=America/New_York:20250919T130000
DTSTAMP:20260504T143111
CREATED:20250902T200250Z
LAST-MODIFIED:20250917T183026Z
UID:1969-1758281400-1758286800@arni-institute.org
SUMMARY:CTN: Dani Bassett
DESCRIPTION:Title and Abstract: TBD \nZoom:\nMeeting ID: 993 3345 6502\nPasscode: Upon request @ arni@columbia.edu
URL:https://arni-institute.org/event/ctn-dani-bassett/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250922T150000
DTEND;TZID=America/New_York:20250922T160000
DTSTAMP:20260504T143111
CREATED:20250904T153706Z
LAST-MODIFIED:20250904T204820Z
UID:1977-1758553200-1758556800@arni-institute.org
SUMMARY:ARNI Continual Learning Working Group Project
DESCRIPTION:Zoom Link: Upon request @ arni@columbia.edu
URL:https://arni-institute.org/event/arni-continual-learning-working-group-project-10/
LOCATION:CSB 480\, Mudd Building\, 500 W 120th Street
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250926T113000
DTEND;TZID=America/New_York:20250926T130000
DTSTAMP:20260504T143111
CREATED:20250902T200421Z
LAST-MODIFIED:20250923T155034Z
UID:1971-1758886200-1758891600@arni-institute.org
SUMMARY:CTN: Ann Kennedy
DESCRIPTION:Title: Neural computations underlying the regulation of motivated behavior \nAbstract: As we interact with the world around us\, we experience a constant stream of sensory inputs\, and must generate a constant stream of behavioral actions. What makes brains more than simple input-output machines is their capacity to integrate sensory inputs with an animal’s own internal motivational state to produce behavior that is flexible and adaptive. In this talk\, I will present three recent stories from the lab exploring the dynamics and modulation of motivational states. First\, working with neural recordings from a hypothalamic nucleus involved in regulation of aggression\, I show how we relate the dynamical properties of neural populations to escalation of an aggressive motivational state. Next\, using methods from control theory and reinforcement learning\, I show that different sites of modulation within a neural circuit produce different resulting effects on behavior and neural activity. Finally\, I will show how theoretical models can reveal unexpected effects of neuromodulation on the dynamic regimes of recurrent neural networks\, illuminating the ways in which the brain might use small molecules to reshape its activity and thus modify behavior.
URL:https://arni-institute.org/event/ctn-ann-kennedy/
LOCATION:Zuckerman Institute – L5-084\, 3227 Broadway\, New York\, NY\, United States
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20250929T150000
DTEND;TZID=America/New_York:20250929T160000
DTSTAMP:20260504T143111
CREATED:20250917T145723Z
LAST-MODIFIED:20250922T184156Z
UID:1990-1759158000-1759161600@arni-institute.org
SUMMARY:ARNI Continual Learning Working Group Project
DESCRIPTION:Next Monday\, September 29\, we will continue our fall semester program with a group workshop on the topic of neural memory models.  First\, we will have a presentation from group member Max Bennett about our ongoing work on generalized neural memory systems that perform flexible updates based on learning instructions specified in natural language.  After the presentation\, we will spend some time in open discussion of memory models\, and hopefully discuss potential (interdisciplinary) projects for the group.\n\nNext Meeting Info\n\n\nDate: Monday\, September 29\nTime: 3-4pm\nRoom: CEPSR 620\nZoom: upon request @ arni@columbia.edu
URL:https://arni-institute.org/event/arni-continual-learning-working-group-project-12/
LOCATION:CEPSR 620\, Schapiro 530 W. 120th St
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