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A functional and perceptional signature of the second visual area in primates
Movshon, Anthony (2013)
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mla
clipboard		 Movshon A. "A functional and perceptional signature of the second visual area in primates.", timms video, Universität Tübingen (2013): https://timms.uni-tuebingen.de:443/tp/UT_20130925_002_bestcon_0001. Accessed 28 Apr 2024.
apa
clipboard		 Movshon, A. (2013). A functional and perceptional signature of the second visual area in primates. timms video: Universität Tübingen. Retrieved April 28, 2024 from the World Wide Web https://timms.uni-tuebingen.de:443/tp/UT_20130925_002_bestcon_0001
harvard
clipboard		 Movshon, A. (2013). A functional and perceptional signature of the second visual area in primates [Online video]. 25 September. Available at: https://timms.uni-tuebingen.de:443/tp/UT_20130925_002_bestcon_0001 (Accessed: 28 April 2024).
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title: A functional and perceptional signature of the second visual area in primates
alt. title: Bernstein Conference 2013: Opening Lecture
creator: Movshon, Anthony (author)
subjects: Bernstein Conference, Computational Neuroscience, Second Visual Area, Primates, Anthony Movshon
description: Bernstein Conference 2013, 24. bis 27. September 2013
abstract: The perception of complex visual patterns emerges from neuronal activity in a cascade of areas in the primate cerebral cortex. Neurons in the primary visual cortex (V1) represent information about local orientation and spatial scale, but the role of the second visual area (V2) is enigmatic. We made synthetic texture images that contain complex features found in naturally occurring visual images, and used them to stimulate macaque V1 and V2 neurons. Most V2 cells respond more vigorously to these stimuli than to matched control stimuli lacking complex naturalistic features, while V1 cells do not. fMRI measurements in humans reveal differences in V1 and V2 responses to the same textures that are consistent with neuronal measurements in macaque. Finally, the ability of human observers to detect naturalistic structure is well predicted by the strength of the neuronal and fMRI responses in V2 but not in V1. These results reveal a novel and particular role for V2 in the representation of naturally occurring structure in visual images, and suggest ways that it begins the transformation of information about elementary visual features into the specific signals about scenes and objects that are found in areas further downstream in the visual pathway. [Collaborative work with Jeremy Freeman, David Heeger, and Corey Ziemba].
publisher: ZDV Universität Tübingen
contributors: Bernstein Center for Computational Neuroscience Tübingen (BCCN) (producer), Bethge, Matthias (organizer), Wichmann, Felix (organizer), Lam, Judith (organizer), Macke, Jakob (organizer)
creation date: 2013-09-25
dc type: image
localtype: video
identifier: UT_20130925_002_bestcon_0001
language: eng
rights: Url: https://timmsstatic.uni-tuebingen.de/jtimms/TimmsDisclaimer.html?638498656922634953