SCIoI at Berlin’s Zeiss Planetarium – Eyes in motion: Understanding active perception

SCIoI members Martin Rolfs and Nina Hanning recently took the stage at the Zeiss Grand Planetarium Berlin to present “Restless gaze, stable vision: The camera work of our eyes.” The event, part of the Berlin Brains series organized by the Stiftung Planetarium Berlin, explored how our eyes and brain work together to create a stable visual experience despite constant motion.

Unstable eyes, stable vision

If our eyes were cameras, the footage would be chaotic and blurry as they rapidly shift from one point to another. Yet, our perception remains smooth and continuous. How does this happen? Martin and Nina explained the mechanisms that stabilize our visual experience, uncovering the brain’s ability to filter and process visual information while ignoring distractions.

Their live demonstration on stage brought these concepts to life, using high-precision eye-tracking and motion-tracking tools to analyze visual perception in real-time. Watch the video below to see how the unsuspecting presenter of the evening, Jochen Müller, served as the “guinea pig” for these cutting-edge experiments. The interactive demonstration offered a unique opportunity to see the methodologies in action and how they reveal hidden processes in the brain.

Watch Martin's and Nina's performance at the Planetarium

Meet the speakers

Martin Rolfs is a Heisenberg Professor for Experimental Psychology at Humboldt-Universität zu Berlin and a principal investigator at SCIoI. His research focuses on active vision, employing tools like motion tracking, EEG, and computational modeling to study attention and perception.

Nina Hanning is a neurocognitive psychologist specializing in visual perception, attention, and memory. With a focus on eye and hand movements in dynamic contexts, she uses advanced techniques, from behavioral psychophysics to transcranial magnetic stimulation, to explore how we interact with our surroundings. She recently won the ERC starting grant too.

Where neuroscience meets the stars

The Zeiss Grand Planetarium provided an ideal setting for this interdisciplinary talk, showcasing the intersection of neuroscience and astronomy. Known for its state-of-the-art facilities, the Planetarium connects the wonders of the cosmos with advancements in other scientific fields, offering audiences a unique space to learn and explore.

SCIoI’s emphasis on interdisciplinary collaboration was evident throughout the evening. By combining psychology, neuroscience, and computational methods, Nina and Martin highlighted how scientific inquiry can uncover the remarkable “machinery” behind our everyday experiences.

Be sure to check out the video for a closer look at the experiments conducted live on stage—it’s an eye-opening example of science in action. This event is organized by the Stiftung Planetarium Berlin.

© Image designed by Freepik, courtesy of Stiftung Planetarium Berlin.

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