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Hello Everyone,</div>
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Just a reminder that our first CTN colloquium will take place <b>tomorrow: Tuesday, September 26, 3:30 p.m. in E5 2004</b>.</div>
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The speaker is Jonathan Cannon, <span style="font-family: georgia, "droid serif", "Times New Roman", Times, serif; font-size: 16px; font-weight: 300; display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted1">head of the<span class="ContentPasted1"> </span></span><a href="https://trimba.mcmaster.ca/#research" style="text-decoration: underline; transition: color 0.2s linear 0s, background-color 0s ease 0s, border-color 0s ease 0s, opacity 0s ease 0s; font-family: georgia, "droid serif", "Times New Roman", Times, serif; font-size: 16px; font-weight: 300; color: rgb(217, 63, 0); background-color: rgb(255, 255, 255);" id="OWAe7ba38d7-c72c-eeb0-dd40-f7f0d49ed187" class="OWAAutoLink ContentPasted1">Trimba
Lab</a><span style="font-family: georgia, "droid serif", "Times New Roman", Times, serif; font-size: 16px; font-weight: 300; display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted1"><span class="ContentPasted1"> </span>at McMaster
University</span>. </div>
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Regards,</div>
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Sue Ann</div>
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<b>Title: <span style="font-family: georgia, "droid serif", "Times New Roman", Times, serif; font-size: 16px; font-weight: 300; display: inline !important; background-color: rgb(255, 255, 255);" class="ContentPasted2">Dynamic inference in rhythm perception,
production, and synchronization<span class="ContentPasted2"> </span></span></b></div>
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Abstract:<br class="ContentPasted3">
<span style="font-weight: 300;">Moving in time with rhythmic music is nearly universal across human cultures, and group rhythmic coordination produces remarkable group cohesion effects, in part by dissolving subjective boundaries between self and other. How
can we make sense of this unique sensorimotor behavior in the context of the wide human repertoire of perceptual and motor processes? In this talk, I propose that the theory of Bayesian predictive processing provides not only a conceptual framework but also
a clear, intuitive mathematical modeling language for rhythm perception, rhythm production, and sensorimotor synchronization through self/other integration.</span></p>
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Following the predictive processing account of perceptual inference, I propose a computational model in which we perform approximate Bayesian inference to estimate the momentary phase and tempo of ongoing underlying metrical cycles using learned metrical models.
Then, drawing on the theory of “active inference” which extends predictive processing to the realm of action, I propose a closely related computational model of rhythm production as a closed loop: timely feedback from our actions informs a dynamic model of
our moving body, and that model guides the timing of subsequent action. Bringing these two computational models together, I propose a new formal account of sensorimotor synchronization: by modeling a heard rhythm and our own motor feedback as though they arise
from the same underlying metrical cycle (i.e., modeling “self” and “other” as a single unified process), active inference naturally brings our actions into synch with what we hear. I explore evidence for this model, its new predictions, and experiments that
might test those predictions.</p>
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<p style="margin-top:0px; margin-bottom:0px">_______________________________________________</p>
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<p style="margin-top:0px; margin-bottom:0px">Dr. Sue Ann Campbell (she/her)</p>
<p style="margin-top:0px; margin-bottom:0px">Professor and University Research Chair</p>
<p style="margin-top:0px; margin-bottom:0px">Department of Applied Mathematics</p>
<p style="margin-top:0px; margin-bottom:0px"><a href="https://uwaterloo.ca/centre-for-theoretical-neuroscience/" title="https://uwaterloo.ca/centre-for-theoretical-neuroscience/" id="OWAc25dda23-788c-868d-7043-148b2f61e20c" class="OWAAutoLink">Centre for Theoretical
Neuroscience</a></p>
<p style="margin-top:0px; margin-bottom:0px">Associate Dean, Research</p>
<p style="margin-top:0px; margin-bottom:0px">Faculty of Mathematics</p>
<p style="margin-top:0px; margin-bottom:0px">University of Waterloo</p>
<p style="margin-top:0px; margin-bottom:0px">Waterloo ON N2L 3G1</p>
<p style="margin-top:0px; margin-bottom:0px"><a href="https://www.math.uwaterloo.ca/~sacampbe/" class="OWAAutoLink" id="OWA84049c87-a4ad-d2c4-82fb-c06f2746945b">https://www.math.uwaterloo.ca/~sacampbe/</a></p>
<p style="margin-top:0px; margin-bottom:0px">President, <a href="https://caims.ca/" title="https://caims.ca/" style="font-family:Calibri,Helvetica,sans-serif; font-size:12pt" id="OWAbc48b67d-87bc-bcf5-2244-ebb9d28d1ca0" class="OWAAutoLink">Canadian Applied
and Industrial Mathematics Society</a></p>
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<p style="margin-top:0px; margin-bottom:0px"><i class="ContentPasted0">I acknowledge that I live and work on the traditional territory of the Chonnonton, Anishinaabeg and Haudenosaunee peoples. The University of Waterloo main campus is located on the Haldimand
tract, the land granted to the Six Nations that includes six miles on each side of the Grand River.</i></p>
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