Helmholtz Institute


12 May 2023
16:15 - 17:15
Ruppert A, Leuvenlaan 21, 3584 CE Utrecht

Helmholtz lecture Ole Jensen, May 12: A pipeline mechanism supporting visual exploration and reading

Helmholtz lecture Prof. Ole Jensen (School of Psychology, University of Birmingham, UK):

!! This Helmholtz lecture starts at 4:15pm !! 

Title: A pipeline mechanism supporting visual exploration and reading

Abstract:We saccade every ~250 ms during visual exploration and reading. Given that it takes ~100 ms to prepare and execute a saccade, the visual system has less than 150 ms to identify the fixated object (or word) while also partaking in preparing the next saccade goal. We propose that neuronal computations in the ventral stream are supported by a pipelining mechanism in which serial processing of several objects (or words) occurs at each level in the visual hierarchy while parallel processing occurs across these levels. Alpha oscillations serve to coordinate this processing as well as saccade initiations. We have investigated this framework by acquiring MEG and eye-tracking data from participants performing free viewing and reading tasks. A recent innovation – rapid invisible frequency tagging – as well as multivariate pattern analysis, have helped us to provide support for the proposed pipelining mechanism.

Location: Ruppert A, Leuvenlaan 21, 3584 CE Utrecht

Helmholtz Lectures take place from 4 to 5pm, with drinks afterwards in the pantry of the Langeveld building. Lectures are hybrid and streamed live via Teams. Some of the lectures will be recorded. Recordings can be found here: https://video.uu.nl/channels/#helmholtz

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