ArticlePloS one2014
Orientation-cue invariant population responses to contrast-modulated and phase-reversed contour stimuli in macaque V1 and V2.
Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Levelt's laws do not predict perception when luminance- and contrast-modulated stimuli compete during binocular rivalry.Scientific reports · 2018Trial
- Behavioral techniques for controlling visual stimuli to modulate visual processing in the brain and their implementation in augmented reality technology.Frontiers in neuroscience · 2026Review
- Retinal and Callosal Activity-Dependent Chandelier Cell Elimination Shapes Binocularity in Primary Visual Cortex.Neuron · 2021Article
- Contrast-modulated stimuli produce more superimposition and predominate perception when competing with comparable luminance-modulated stimuli during interocular grouping.Scientific reports · 2020Article
- Beyond Rehabilitation of Acuity, Ocular Alignment, and Binocularity in Infantile Strabismus.Frontiers in systems neuroscience · 2018Article
- The divisive normalization model of V1 neurons: a comprehensive comparison of physiological data and model predictions.Journal of neurophysiology · 2017Review
- Nonlinear Y-Like Receptive Fields in the Early Visual Cortex: An Intermediate Stage for Building Cue-Invariant Receptive Fields from Subcortical Y Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017Article
- Mice Can Use Second-Order, Contrast-Modulated Stimuli to Guide Visual Perception.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016Article
- Deep Neural Networks as a Computational Model for Human Shape Sensitivity.PLoS computational biology · 2016Article
- Breaking cover: neural responses to slow and fast camouflage-breaking motion.Proceedings. Biological sciences · 2015Article
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Authors and funding
12 authors.
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Abstract
Visual scenes can be readily decomposed into a variety of oriented components, the processing of which is vital for object segregation and recognition. In primate V1 and V2, most neurons have small spatio-temporal receptive fields responding selectively to oriented luminance contours (first order), while only a subgroup of neurons signal non-luminance defined contours (second order). So how is the orientation of second-order contours represented at the population level in macaque V1 and V2? Here we compared the population responses in macaque V1 and V2 to two types of second-order contour stimuli generated either by modulation of contrast or phase reversal with those to first-order contour stimuli. Using intrinsic signal optical imaging, we found that the orientation of second-order contour stimuli was represented invariantly in the orientation columns of both macaque V1 and V2. A physiologically constrained spatio-temporal energy model of V1 and V2 neuronal populations could reproduce all the recorded population responses. These findings suggest that, at the population level, the primate early visual system processes the orientation of second-order contours initially through a linear spatio-temporal filter mechanism. Our results of population responses to different second-order contour stimuli support the idea that the orientation maps in primate V1 and V2 can be described as a spatial-temporal energy map.
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