Effects of Spatial Frequency Similarity and Dissimilarity on Contour Integration. [PDF]
PLoS ONE, 2015 We examined the effects of spatial frequency similarity and dissimilarity on human contour integration under various conditions of uncertainty. Participants performed a temporal 2AFC contour detection task.
Malte Persike, Günter Meinhardt
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Neuronal oscillations during contour integration of dynamic visual stimuli form parietal/frontal networks [PDF]
Frontiers in Integrative Neuroscience, 2014 The ability to integrate visual features into a global coherent percept that can be further categorized and manipulated are fundamental abilities of the neural system.
Marta eCastellano +3 more
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Contour integration impairment in schizophrenia and first episode psychosis: State or trait? [PDF]
Schizophrenia Research, 2014 Contour integration is a fundamental visual process that recovers object structure by representing spatially separated edge elements as a continuous contour or shape boundary.
Steven Silverstein +2 more
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Ensemble Empirical Mode Decomposition Analysis of EEG Data Collected during a Contour Integration Task. [PDF]
PLoS ONE, 2015 We discuss a data-driven analysis of EEG data recorded during a combined EEG/fMRI study of visual processing during a contour integration task. The analysis is based on an ensemble empirical mode decomposition (EEMD) and discusses characteristic features
Karema Al-Subari +5 more
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Sparse deep predictive coding captures contour integration capabilities of the early visual system. [PDF]
PLoS Comput Biol, 2021 Both neurophysiological and psychophysical experiments have pointed out the crucial role of recurrent and feedback connections to process context-dependent information in the early visual cortex.
Boutin V +4 more
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Temporal Contour Integration Deficits in Children With Amblyopia. [PDF]
Invest Ophthalmol Vis SciPurpose Contour integration, the process of combining local visual fragments into coherent paths or shapes, is essential for visual perception. Although prior research on amblyopia has focused primarily on spatial domain deficits in contour integration ...
Chen YR, Jiang SQ, Liu XY, Zhang JY.
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Gamma frequency transcranial alternating current stimulation over the visual cortex modulates contour integration [PDF]
Frontiers in CognitionIntroductionThe visual system must integrate spatially fragmented information to perceive coherent object boundaries. Contour integration represents a fundamental process underlying this perceptual organization by linking discrete edge elements into ...
Yosun Yoon +3 more
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The equivalent internal orientation and position noise for contour integration. [PDF]
Sci Rep, 2017 Contour integration is the joining-up of local responses to parts of a contour into a continuous percept. In typical studies observers detect contours formed of discrete wavelets, presented against a background of random wavelets.
Baldwin AS, Fu M, Farivar R, Hess RF.
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A recurrent neural model for proto-object based contour integration and figure-ground segregation. [PDF]
J Comput Neurosci, 2017 Visual processing of objects makes use of both feedforward and feedback streams of information. However, the nature of feedback signals is largely unknown, as is the identity of the neuronal populations in lower visual areas that receive them.
Hu B, Niebur E.
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Contour Integration in Dynamic Scenes: Impaired Detection Performance in Extended Presentations [PDF]
Frontiers in Psychology, 2017 Since scenes in nature are highly dynamic, perception requires an on-going and robust integration of local information into global representations. In vision, contour integration (CI) is one of these tasks, and it is performed by our brain in a seemingly
Axel Grzymisch +2 more
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