V1 mechanisms and some figure-ground and border effects

Journal of Physiology, Paris
Zhaoping Li

Abstract

V1 neurons have been observed to respond more strongly to figure than background regions. Within a figure region, the responses are usually stronger near figure boundaries (the border effect), than further inside the boundaries. Sometimes the medial axes of the figures (e.g., the vertical midline of a vertical figure strip) induce secondary, intermediate, response peaks (the medial axis effect). Related is the physiologically elusive "cross-orientation facilitation", the observation that a cell's response to a grating patch can be facilitated by an orthogonally oriented grating in the surround. Higher center feedbacks have been suggested to cause these figure-ground effects. It has been shown, using a V1 model, that the causes could be intra-cortical interactions within V1 that serve pre-attentive visual segmentation, particularly, object boundary detection. Furthermore, whereas the border effect is robust, the figure-ground effects in the interior of a figure, in particular, the medial axis effect, are by-products of the border effect and are predicted to diminish to zero for larger figures. This model prediction (of the figure size dependence) was subsequently confirmed physiologically, and supported by findings that the resp...Continue Reading

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Citations

Oct 1, 2013·Cognitive Neuroscience·Danique JeurissenPieter R Roelfsema
Apr 7, 2007·PLoS Computational Biology·Li Zhaoping, Keith A May
Dec 19, 2009·PLoS Computational Biology·Roland SchäferWalter Senn
Mar 8, 2012·PLoS Computational Biology·Ruben Coen-CagliOdelia Schwartz
May 30, 2013·PloS One·Olivier PenacchioLaura Dempere-Marco
Aug 15, 2013·Attention, Perception & Psychophysics·Tobias Feldmann-Wüstefeld, Anna Schubö
Jan 1, 2007·Advances in Cognitive Psychology·Michael H Herzog
Apr 4, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Yasuhiro Hatori, Ko Sakai
Nov 4, 2011·Neural Networks : the Official Journal of the International Neural Network Society·M W Spratling
Mar 2, 2011·Vision Research·Oliver Braddick, Janette Atkinson
Feb 7, 2006·Neuroscience and Biobehavioral Reviews·M L Seghier, P Vuilleumier
Apr 1, 2015·Vision Research·Mariella Dimiccoli
Mar 2, 2011·Vision Research·Antoine BarbotMarisa Carrasco
Dec 7, 2010·Vision Research·Johannes RüterMichael H Herzog
Jul 10, 2008·Vision Research·S J Harrison, D R T Keeble
Jul 25, 2008·Neural Networks : the Official Journal of the International Neural Network Society·Wentao HuangJianhua Jia
Mar 25, 2017·Attention, Perception & Psychophysics·Li JinglingChia-Huei Tseng
May 11, 2019·PLoS Computational Biology·Adrien DoerigMichael H Herzog
Feb 10, 2021·Journal of Vision·Cordula Hunt, Günter Meinhardt
Jul 17, 2021·NeuroImage·Maya A JastrzębowskaMichael H Herzog

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