Events
Past Event
WED@NICO SEMINAR: Jacqueline Kruser, Northwestern Feinberg Medicine "High-Stakes Medical Decision Making: Investigating Human Behavior in a Complex Social System"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
Speaker:
Jacqueline Kruser, Assistant Professor of Medicine (Pulmonary and Critical Care) and Medical Social Sciences, Feinberg School of Medicine, Northwestern University
Title:
High-Stakes Medical Decision Making: Investigating Human Behavior in a Complex Social System
Abstract:
The majority of older adults with life-limiting illnesses report end-of-life treatment goals that prioritize quality of life and comfort over invasive, high-burden treatments that prolong life. Yet, the incidence of intensive care unit admission and the use of prolonged life support in older adults near death continues to rise. A vast amount of observational research suggests that the current approach to making medical decisions for patients near the end of life in the United States fails to meet the needs and goals of patients, their families, and medical professionals at the bedside. The traditional paradigm of investigating and improving high-stakes medical decision-making has represented patients and physicians as independent, autonomous, and rational decision makers. Our work investigating high-stakes medical decisions has uncovered several latent, key influences on treatment decisions related to the complex social and technical system of the intensive care unit. We theorize that building a better model of high-stakes medical decision making that attends to this complex system will lead to effective strategies that will ultimately improve end-of-life care for older adults in the United States
Speaker Bio:
Jacky Kruser, MD MS is an Assistant Professor of Medicine and Medical Social Sciences at Northwestern University Feinberg School of Medicine. Dr. Kruser is a health services researcher funded by the NIH to investigate how the complex social and technical system of the intensive care unit impacts treatment decisions about prolonged life support and end-of-life care. Her work also focuses on developing, testing, and implementing novel interventions to support physicians, patients, and their family members during high-stakes medical decisions. She is a practicing pulmonologist and critical care physician in the adult Medical Intensive Care Unit at Northwestern Memorial Hospital in Chicago, Illinois. She completed her undergraduate studies at the University of Notre Dame, followed by medical school at the University of Chicago Pritzker School of Medicine. She was a resident in Internal Medicine at the University of Wisconsin then pursued a clinical fellowship in Pulmonary and Critical Care Medicine and a master’s degree in Health Services and Outcomes Research at Northwestern University
About the Speaker Series:
Wednesdays@NICO is a vibrant weekly seminar series focusing broadly on the topics of complex systems and data science. It brings together attendees ranging from graduate students to senior faculty who span all of the schools across Northwestern, from applied math to sociology to biology and every discipline in-between.
Live Stream:
Time
Wednesday, January 29, 2020 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - MAY 2026 - Speaker: Xudong Tang, Computer Science and NICO
Northwestern Institute on Complex Systems (NICO)
5:30 PM
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M416, Technological Institute
Details
MAY MEETING: Thursday, May 28, 2026 at 5:30pm (US Central)
LOCATION:
ESAM Conference Room, Tech M416
2145 Sheridan Road, Evanston, IL 60208
AGENDA:
5:30pm - Meet and greet with refreshments
6:00pm - Talk with Xudong Tang, PhD Student, Computer Science, NICO, and the Human-AI Collaboration Lab, Northwestern University
TALK TITLE:
Human and Machine Perception of Voice Similarity
ABSTRACT:
Modern voice cloning systems generate synthetic speech that listeners frequently cannot identify as being synthetic. But a voice can sound natural without sounding like the intended person, and what determines whether a clone is heard as a particular person is an open question. Here we report a large-scale preregistered experiment in which we collected 92,239 responses from 175 participants on their perception of pairs of real recordings, voice clones, and continuously morphed voices drawn from 100 contemporary celebrities across 20 speaker groups. We find that voice clones do not reliably preserve perceived speaker identity, reducing same-speaker judgments by 12.7 percentage points even though the clones are produced by a state-of-the-art text-to-speech model, while leaving different-speaker judgments unchanged. Using continuously morphed stimuli, we find that speakers vary substantially in how much variation their perceived identity tolerates, and that this variation is not predicted by speaker demographics. Speaker embeddings account for 58.9\% (95\% CI = [55.7, 61.9]) of variance in identity judgments, which is more than acoustic features, social attributes, and clone status combined. Once all these observed features are accounted for, clone status adds no additional predictive power. These results shows that the perceptual impact of voice cloning is positional rather than categorical: we can model how listeners judge a voice by how close it falls to the perceptual boundary that defines each speaker's recognizable voice, applying the same criterion to real and synthetic speech alike.
DATA SCIENCE NIGHTS are monthly meetings featuring presentations and discussions about data-driven science and complex systems, organized by Northwestern University graduate students and scholars. Students and researchers of all levels are welcome! For more information: http://bit.ly/nico-dsn
FUTURE DATES:
Data Science Nights will return in September!
Time
Thursday, May 28, 2026 at 5:30 PM - 7:00 PM
Location
M416, Technological Institute Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Spring 2026 Commencement
University Academic Calendar
All Day
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Spring 2026 Commencement
Time
Sunday, June 14, 2026
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University Academic Calendar
Juneteenth - University Closed
University Academic Calendar
All Day
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Juneteenth - University Closed
Time
Friday, June 19, 2026
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University Academic Calendar
Independence Day (observed) - University Closed
University Academic Calendar
All Day
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Independence Day (observed) - University Closed
Time
Friday, July 3, 2026
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University Academic Calendar
Fall 2026 Classes Begin
University Academic Calendar
All Day
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Fall 2026 Classes Begin
Time
Wednesday, September 23, 2026
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University Academic Calendar