Results for '*Visual Cortex'

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  1.  37
    Mechanisms of Visual Perceptual Learning in Macaque Visual Cortex.Rufin Vogels - 2010 - Topics in Cognitive Science 2 (2):239-250.
    The neural mechanisms underlying behavioral improvement in the detection or discrimination of visual stimuli following learning are still ill understood. Studies in nonhuman primates have shown relatively small and, across studies, variable effects of fine discrimination learning in primary visual cortex when tested outside the context of the learned task. At later stages, such as extrastriate area V4, extensive practice in fine discrimination produces more consistent effects upon responses and neural tuning. In V1 and V4, the effects of learning (...)
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  2. Primary Visual Cortex and Visual Awareness.Frank Tong - 2003 - Nature Reviews Neuroscience 4 (3):219-229.
  3.  27
    The Role of Primary Visual Cortex (V1) in Visual Awareness.Victor A. F. Lamme, H. Landman Super, P. R. R. Roelfsema & H. Spekreijse - 2000 - Vision Research 40 (10):1507-21.
  4.  10
    Activation in Visual Cortex Correlates with the Awareness of Stereoscopic Depth.Gijs J. Brouwer, Raymond van Ee & Jens Schwarzbach - 2005 - Journal of Neuroscience 25 (45):10403-10413.
  5.  18
    Feedback Contributions to Visual Awareness in Human Occipital Cortex.Tony Ro, Bruno Breitmeyer, Philip Burton, Neel S. Singhal & David Lane - 2003 - Current Biology 13 (12):1038-1041.
  6.  15
    Transcranial Magnetic Stimulation of Early Visual Cortex Interferes with Subjective Visual Awareness and Objective Forced-Choice Performance.Mika Koivisto, Henry Railo & Niina Salminen-Vaparanta - 2011 - Consciousness and Cognition 20 (2):288-298.
    In order to study whether there exist a period of activity in the human early visual cortex that contributes exclusively to visual awareness, we applied transcranial magnetic stimulation over the early visual cortex and measured subjective visual awareness during visual forced-choice symbol or orientation discrimination tasks. TMS produced one dip in awareness 60–120 ms after stimulus onset, while forced-choice orientation discrimination was suppressed between 60 and 90 ms and symbol discrimination between 60 and 120 ms. Thus, a time (...)
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  7.  54
    Visually Driven Activation in Macaque Areas V2 and V3 Without Input From the Primary Visual Cortex.Michael C. Schmid & Mark A. Augath - unknown
    Creating focal lesions in primary visual cortex (V1) provides an opportunity to study the role of extra-geniculo-striate pathways for activating extrastriate visual cortex. Previous studies have shown that more than 95% of neurons in macaque area V2 and V3 stop firing after reversibly cooling V1 [1,2,3]. However, no studies on long term recovery in areas V2, V3 following permanent V1 lesions have been reported in the macaque. Here we use macaque fMRI to study area V2, V3 activity patterns (...)
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  8. The Synaptic Veto Mechanism: Does It Underlie Direction and Orientation Selectivity in the Visual Cortex.Christof Koch & Tomaso Poggio - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 408--419.
     
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  9.  17
    High-Resolution 1H Chemical Shift Imaging in the Monkey Visual Cortex.Josef Pfeuffer - unknown
    Functionally distinct anatomic subdivisions of the brain can often be only a few millimeters in one or more dimensions. The study of metabolic differences in such structures by means of localized in vivo MR spectroscopy is therefore challenging, if not impossible. In fact, the spatial resolution of chemical shift imaging (CSI) in humans is typically in the range of centimeters. The aim of the present study was to optimize 1H CSI in monkeys and demonstrate the feasibility of high spatial resolutions (...)
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  10.  22
    On the Relationship Between Interocular Suppression in the Primary Visual Cortex and Binocular Rivalry.Sengpiel Frank, Bonhoeffer Tobias, C. B. Freeman Tobe & Blakemore Colin - 2001 - Brain and Mind 2 (1):39-54.
    Both classical psychophysical work and recentfunctional imaging studies have suggested acritical role for the primary visual cortex(V1) in resolving the perceptual ambiguitiesexperienced during binocular rivalry. Here weexamine, by means of single-cell recordings andoptical imaging of intrinsic signals, thespatial characteristics of suppression elicitedby rival stimuli in cat V1. We find that the interocular suppression field of V1 neuronsis centred on the same position in space and isslightly larger (by a factor of 1.3) than theminimum response field, measured through thesame eye. (...)
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  11.  15
    Unconscious Inference and Conscious Representation: Why Primary Visual Cortex (V1) is Directly Involved in Visual Awareness.Zhicheng Lin - 2008 - Behavioral and Brain Sciences 31 (2):209-210.
    The extent to which visual processing can proceed in the visual hierarchy without awareness determines the magnitude of perceptual delay. Increasing data demonstrate that primary visual cortex (V1) is involved in consciousness, constraining the magnitude of visual delay. This makes it possible that visual delay is actually within the optimal lengths to allow sufficient computation; thus it might be unnecessary to compensate for visual delay.
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  12. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.A. B. Bonds & E. J. DeBruyn - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 292.
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  13. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.Leon N. Cooper - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 164.
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  14. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.J. G. Daugman - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 96.
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  15. Application of an Explicit Procedure for Model Building in the Visual Cortex.V. Dobson & D. Rose - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 546--560.
     
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  16. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.Yves Fregnac - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 172.
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  17. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.M. A. Georgeson - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 223.
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  18. Spatial and Spatial Frequency Characteristics of Receptive Fields of the Visual Cortex and Piecewise Fourier Analysis.V. D. Glezer - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 265--272.
     
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  19. Parallel Processing of Color-Contrast Detectors in the Visual Cortex.P. Gouras - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 242.
     
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  20. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.P. Hammond - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 326.
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  21. Hierarchical Contour Coding by the Visual Cortex.G. Hartmann - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 137--145.
     
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  22. One, Few, Infinity: Linear and Nonlinear Processing in the Visual Cortex.Shaul Hochstein & Hedva Spitzer - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 341--350.
     
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  23. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.Lamberto Maffei - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 334.
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  24. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.Dan E. Nielsen - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 374.
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  25. Neuronal Composition and Circuitry of Rat Visual Cortex.A. Peters - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 492--503.
     
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  26. Inhibitory Circuits and Orientation Selectivity in the Visual Cortex.Adam Murdin Sillito - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley.
     
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  27. Activity-Dependent Self-Organization of the Mammalian Visual Cortex.W. Singer - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 123--136.
     
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  28. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.N. V. Swindale - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley. pp. 452.
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  29. Models of the Visual Cortex Edited by D. Rose and VG Dobson© 1985 John Wiley & Sons Ltd.Suzannah Bliss Tieman & Helmut Vb Hirsch - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley.
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  30. Neuronal Circuitry in the Cat Visual Cortex Studied by Cross-Correlation Analysis.Keisuke Toyama - 1985 - In David Rose & Vernon Dobson (eds.), Models of the Visual Cortex. New York: Wiley.
     
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  31. Antecedents and Correlates of Visual Detectoin and Awareness in Macaque Prefrontal Cortex.K. G. Thompson & Jeffrey D. Schall - 2000 - Vision Research 40 (10):1523-38.
  32.  36
    Unconscious Activation of Visual Cortex in the Damaged Right Hemisphere of a Parietal Patient with Extinction.Geraint Rees, E. Wojciulik, Karen Clarke, Masud Husain, Christopher D. Frith & Julia Driver - 2000 - Brain 123 (8):1624-1633.
  33.  19
    Low-Level Phenomenal Vision Despite Unilateral Destruction of Primary Visual Cortex.Petra Stoerig & E. Barth - 2001 - Consciousness and Cognition 10 (4):574-587.
    GY, an extensively studied human hemianope, is aware of salient visual events in his cortically blind field but does not call this ''vision.'' To learn whether he has low-level conscious visual sensations or whether instead he has gained conscious knowledge about, or access to, visual information that does not produce a conscious phenomenal sensation, we attempted to image process a stimulus s presented to the impaired field so that when the transformed stimulus T(s) was presented to the normal hemifield it (...)
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  34.  37
    Are We Aware of Neural Activity in Primary Visual Cortex?Francis Crick & Christof Koch - 1995 - Nature 375:121-23.
  35.  21
    Linking Visual Cortex to Visual Perception: An Alternative to the Gestalt Bubble.Stephen Grossberg - 2003 - Behavioral and Brain Sciences 26 (4):412-413.
    Lehar's lively discussion builds on a critique of neural models of vision that is incorrect in its general and specific claims. He espouses a Gestalt perceptual approach rather than one consistent with the “objective neurophysiological state of the visual system” (target article, Abstract). Contemporary vision models realize his perceptual goals and also quantitatively explain neurophysiological and anatomical data.
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  36.  74
    Activity Changes in Early Visual Cortex Reflect Monkeys' Percepts During Binocular Rivalry.David A. Leopold & Nikos K. Logothetis - 1996 - Nature 379 (6565):549-553.
  37.  17
    Parallel Visual Pathways From the Retina to the Visual Cortex – How Do They Fit?Luiz Carlos L. Silveira - 2004 - Behavioral and Brain Sciences 27 (1):50-51.
    Which roles are played by subcortical pathways in models of cortical streams for visual processing? Through their thalamic relays, magnocellular (M) and parvocellular (P) projecting ganglion cells send complementary signals to V1, where their outputs are combined in several different ways. The synergic role of M and P cells in vision can be understood by estimating cell response entropy in all domains of interest.
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  38. Oscillatory Responses in Cat Visual Cortex Exhibit Inter-Columnar Synchronization Which Reflects Global Stimulus Properties.Charles M. Gray, P. Kreiter Konig, Andreas K. Engel & Wolf Singer - 1992 - Nature 338:334-7.
     
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  39.  4
    Why is “Blindsight” Blind? A New Perspective on Primary Visual Cortex, Recurrent Activity and Visual Awareness.Juha Silvanto - 2015 - Consciousness and Cognition 32:15-32.
  40. Predicting the Stream of Consciousness From Activity in Human Visual Cortex.John-Dylan Haynes & Geraint Rees - 2005 - Current Biology 15 (14):1301-7.
  41.  93
    Synchronization of Oscillatory Responses in Visual Cortex Correlates with Perception in Interocular Rivalry.Pascal Fries, Pieter R. Roelfsema, Andreas K. Engel & Wolf Singer - 1997 - Proceedings of the National Academy of Sciences Usa 94:12699-12704.
  42. Models of the Visual Cortex.David Rose & G. Dobson, Vernon (eds.) - 1985 - New York: Wiley.
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  43.  33
    Neural Mechanisms of Spatial Selective Attention in Areas V1, V2, and V4 of Macaque Visual Cortex.Stephen Luck, Leonardo Chelazzi, Steven Hillyard & Robert Desimone - 1997 - Journal of Neurophysiology 77 (1):24-42.
  44. Sensitivity to Syntax in Visual Cortex.Suzanne Dikker, Hugh Rabagliati & Liina Pylkkänen - 2009 - Cognition 110 (3):293-321.
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  45.  31
    A Saliency Map in Primary Visual Cortex.Zhaoping Li - 2002 - Trends in Cognitive Sciences 6 (1):9-16.
  46.  1
    Figure–Ground Organization and the Emergence of Proto-Objects in the Visual Cortex.Rüdiger von der Heydt - 2015 - Frontiers in Psychology 6.
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  47. Phase Locking of Single Neuron Activity to Theta Oscillations During Working Memory in Monkey Extrastriate Visual Cortex.Han Lee & Gregory V. Simpson - 2005 - Neuron 45:147-156.
    activity” has been considered to play a major role in the short-term maintenance of memories. Many studies since then have provided support for this view and greatly advanced our knowledge of the effects of stimulus type and modality on delay activity and its temporal dynamics. In humans, working memory has also been a subject of intense investigation using scalp and intracranial electroencephalography as well as magnetoencephalography, which provide estimates of local population activity. The published findings include reports of systematic changes (...)
     
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  48.  38
    From Retinotopy to Recognition: fMRI in Human Visual Cortex.Roger B. H. Tootell, Nouchine K. Hadjikhani, Janine D. Mendola, Sean Marrett & Anders M. Dale - 1998 - Trends in Cognitive Sciences 2 (5):174-183.
  49. Global Effects of Feature-Based Attention in Human Visual Cortex.M. Saenz, G. T. Buracas & G. M. Boynton - 2002 - Nature Neuroscience 5 (7):631-632.
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  50.  28
    Developmental Neuroimaging of the Human Ventral Visual Cortex.Kalanit Grill-Spector, Golijeh Golarai & John Gabrieli - 2008 - Trends in Cognitive Sciences 12 (4):152-162.
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