Events
Past Event
WED@NICO SEMINAR: Joshua Jackson, The University of Chicago "The History of our Minds Evidence for Co-Evolution of Cultural and Psychological Processes"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
Speaker:
Joshua Jackson, Assistant Professor of Behavioral Science, The University of Chicago Booth School of Business
Title:
The History of our Minds: Evidence for Co-Evolution of Cultural and Psychological Processes
Abstract:
Biologically modern humans are more than 100,000 years old. Many scientists have devoted their lives to understanding how architecture, social structure, and language has changed over this history. Yet we know much less about the history of human minds. Behavioral science research has instead focused nearly exclusively on contemporary people, and psychological theories often draw from taxonomies which assume a culturally and historically stable structure to emotion, personality, morality, and other psychological processes. In this talk, I discuss new methods of studying the “psychological fossil record,” with emerging insights that challenge existing psychological taxonomies. Psychological change is often patterned and predictable based on cultural change, and general evolutionary principles may explain psychological changes in multiple domains. We now have the methodological and theoretical tools to build a more historically enriched science of human cognition and behavior, with a basic capacity to make foundational discoveries and an applied capacity to predict human futures.
Speaker Bio:
Joshua Conrad Jackson is an assistant professor of behavioral science at University of Chicago’s Booth School of Business. He studies how culture has shaped the mind throughout human history, and how it continues to shape human futures. He has published over 50 papers examining how historical and contemporary changes in technology, conflict, and migration have influenced moral psychology, emotion, prejudices, and belief systems. Prior to joining Booth, Josh was a DRRC Postdoctoral Fellow at the Kellogg School of Management. He earned his PhD from University of North Carolina at Chapel Hill and his BA from McGill University.
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option: https://northwestern.zoom.us/j/99952026190
Passcode: NICO2023
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. Please visit: https://bit.ly/WedatNICO for information on future speakers.
Time
Wednesday, October 25, 2023 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
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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
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All Day
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Fall 2026 Classes Begin
Time
Wednesday, September 23, 2026
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University Academic Calendar