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Smart Perception Gestalt Grouping

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SeminarPast EventNeuroscience

Smart perception?: Gestalt grouping, perceptual averaging, and memory capacity

Jennifer E. Corbett

Prof

Brunel University London

Schedule
Tuesday, May 18, 2021

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Schedule

Tuesday, May 18, 2021

4:00 PM Europe/Zurich

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Past Seminar

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Duration

70.00 minutes

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Abstract

It seems we see the world in full detail. However, the eye is not a camera nor is the brain a computer. Incredible metabolic constraints render us unable to encode more than a fraction of information available in each glance. Instead, our illusion of stable and complete perception is accomplished by parsimonious representation relying on natural order inherent in the surrounding environment. I will begin by discussing previous behavioral work from our lab demonstrating one such strategy by which the visual system represents average properties of Gestalt-grouped sets of individual objects, warping individual object representations toward the Gestalt-defined mean. I will then discuss on-going work using a behavioral index of averaging Gestalt-grouped information established in our previous work in conjunction with an ERP-index of VSTM capacity (the CDA) to measure whether the Gestalt-grouping and perceptual averaging strategy acts to boost memory capacity above the classic “four-item” limit. Finally, I will outline our pre-registered study to determine whether this perceptual strategy is indeed engaged in a “smart” manner under normal circumstances, or compromises fidelity for capacity by perceptually-averaging in trials with only four items that could otherwise be individually represented.

Topics

CDAERPbehavioural indexgestalt groupingmemorymemory capacityobject representationsperceptual averagingperceptual learningvisual perceptionvisual short-term memoryvisual system

About the Speaker

Jennifer E. Corbett

Prof

Brunel University London

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