Li Zhaoping
@Li_Zhaoping
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Prof. MPI Biol. Cybern, author of V1 Saliency Hypothesis, and "Understanding vision: theory, models, and data", free courses at https://t.co/OeJqpFQecV
Tübingen, Germany
Joined March 2017
"Core object recognition", defined as recognition in the central 10 degree visual field within ~ 200 ms, characterize-able by feedforward neural network of multiple layers, may be too simplistic. This https://t.co/6mwIxy8KKd reveals feedback within 10-40 ms for recognition in the
cell.com
Neuroscience; Sensory neuroscience; Cognitive neuroscience
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Popular opinion: V1's intracortical connections are too slow, feedback connections convey contextual influences in neural responses. Analysis in a unique set of data: conduction velocity of the intracortical axons grows with distance and is fast enough https://t.co/pce4iEq866
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I learned a lot from my collaborators what 7T fMRI can show: evidence that V1 generates the visual saliency signals first and then parietal cortex receives such signals from V1 https://t.co/fvyxK2QKbL
journals.plos.org
How does the brain direct our attention to conspicuous objects in our field of vision? This study in humans maps the neural origin and propagation of saliency signals through cortical layers during...
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The title and authors of this paper attract me to it https://t.co/HxX2TFMmeS "Detection and identification of monocular, binocular, and dichoptic stimuli are mediated by binocular sum and difference channels" by Mark A. GeorgesonHiromi SatoRonald ChangFrederick A. A. Kingdom
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The 3rd edition of our Systems Vision Science summer school and symposium is a great success. A virtual edition is planned for summer 2026, another onsite edition for summer 2027, see https://t.co/KbVq3I2m5K for previous editions.
summerschool.lizhaoping.org
From Europe to Asia to the U.S.: Scientists of visual #neuroscience came together at the Systems #Vision #Science Summer School & Symposium, hosted by Max Planck researcher @Li_Zhaoping. Looking forward to a virtual gathering in 2026, and an in-person event again in 2027!
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The central visual field not only benefits from a denser sampling in retina and a higher cortical magnification factor, but also enjoys more top-down feedback along the visual pathway to aid visual recognition. See psychophysics evidence https://t.co/7zIBmeE8Va
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Day two of the 2025 WFSBP World Congress is here! Join us for Plenary Session II and Plenary Debate Session I as we delve into some of the most critical topics in the field. Don't forget to explore Poster Session I! Check the official schedule to plan your day.
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Here is the video of an expanded version (to a student network of neuroscience) of the IBRO speech at FRM2025,
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In my IBRO keynote speech (at FRM2025) "What does the primary visual cortex (V1) do?", one function is "V1 as a motor cortex". Many asked me for more details, you can find a summary of such details in this 2020 poster here https://t.co/nZpKFZDnCr more questions and comments
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Interesting! Although individuals with aphantasia lack visual imagery experience, their early visual cortex exhibits content-specific activation patterns during imagery attempts. https://t.co/ff6Y9jiuqo perhaps due to top-down feedback?
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Curious: Human and artificial visual systems share a computational principle for transforming binocular disparity into depth representation
nature.com
Communications Biology - fMRI and deep neural networks reveal hierarchical transformation of binocular disparity from ambiguous cross-correlation to more refined cross-matching representations.
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"What does primary visual cortex (V1) do?" -- https://t.co/WGyBOKCw0S -- by the Student Network for Neuroscience. Half a century ago, Hubel & Wiesel discovered how V1 maps visual inputs to neural responses, this video addresses what V1 neural activities do for behavior. It is
I am preparing and looking forward to speak on "What does primary visual cortex (V1) do?" tomorrow (Thursday) 6 pm on this student organized event, event link here
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