[AI Seminar] Online AI Seminar on Dec 15 (Zoom) -- Michael Arcaro -- Topographic constraints on visual development-- AI seminar is sponsored by Fortive

[Aayush Bansal]

Michael Arcaro (UPenn) will be giving an online seminar on "Topographic
constraints on visual development " from 12:00 noon - 01:00 PM ET on Dec 15.

*Zoom Link*:
https://cmu.zoom.us/j/99938770592?pwd=d3RhMmgrY3hCOEd3a3VRWHRLcDd5Zz09


CMU AI Seminar is sponsored by Fortive.

Following are the details of the talk:

*Title*: Topographic constraints on visual development

*Abstract*: We are remarkably good at recognizing objects and faces in our
environment, even after just a brief glimpse. How do we develop the neural
circuitry that supports such robust perception? The biological importance
of faces for social primates and the stereotyped location of face-selective
brain regions across individuals has engendered the idea that face regions
are innate neural structures. I will present data challenging this view,
where face regions in monkeys were not present at birth but instead emerged
in stereotyped locations within the first few postnatal months. Indeed,
experience appears to be necessary for the formation of these specialized
regions: Monkeys raised without exposure to faces did not develop face
regions. But if specialized regions require experience, why do they emerge
in such stereotyped locations? At birth, a series of hierarchically
organized retinotopic maps, in which adjacent neurons represent adjacent
points in visual space, are present throughout the visual system.  These
retinotopic maps carry with them selectivity biases for low-level features
commonly found in faces and are predictive of where face regions will
emerge later in development. These findings reveal that experience-driven
changes are anchored to the intrinsic topographic architecture of visual
cortex, establishing a framework for understanding how neural
representations come to support visual perception.


*Bio*: Michael Arcaro received his PhD at Princeton working with Drs.
Sabine Kastner and Uri Hasson on organizing principles of the adult human
and macaque visual system. He went on to do a postdoc with Dr. Margaret
Livingstone at Harvard Medical School studying visual development in baby
macaque monkeys. He recently moved to UPenn and setup his own lab studying
how intrinsic and experience-driven processes interact through development
to shape brain organization and behavior.

To learn more about the seminar series, please visit the website:
http://www.cs.cmu.edu/~aiseminar/


-- 
Aayush Bansal
http://www.cs.cmu.edu/~aayushb/
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