36 found
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  1.  50
    Blindsight in Man and Monkey.Petra Stoerig & Alan Cowey - 1997 - Brain 120:535-59.
  2.  58
    Blindsight in Monkeys.Alan Cowey - 1995 - Nature 373:247-9.
  3.  90
    Is Blindsight Like Normal, Near-Threshold Vision?Paul Azzopardi & Alan Cowey - 1997 - Proceedings of the National Academy of Sciences Usa 94 (25):14190-14194.
  4.  80
    Striate Cortex (V1) Activity Gates Awareness of Motion.Juha Silvanto, Alan Cowey, Nilli Lavie & Vincent Walsh - 2005 - Nature Neuroscience 8 (2):143-144.
    A key question in understanding visual awareness is whether any single cortical area is indispensable. In a transcranial magnetic stimulation experiment, we show that observers' awareness of activity in extrastriate area VS depends on the amount of activity in striate cortex (Vl). From the timing and pattern of effects, we infer that back-projections from extrastriate cortex influence information content in Vl, but it is Vl that determines whether that information reaches awareness.
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  5. On the Usefulness of ‘What’ and ‘Where’ Pathways in Vision.Edward H. F. de Haan & Alan Cowey - 2011 - Trends in Cognitive Sciences 15 (10):460-466.
  6. The 30th Sir Frederick Bartlett Lecture: Fact, Artefact, and Myth About Blindsight.Alan Cowey - 2004 - Quarterly Journal of Experimental Psychology A 57 (4):577-609.
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  7. Blindsight and Visual Awareness.Paul Azzopardi & Alan Cowey - 1998 - Consciousness and Cognition 7 (3):292-311.
    Some patients with damaged striate cortex have blindsight-the ability to discriminate unseen stimuli in their clinically blind visual field defects when forced-choice procedures are used. Blindsight implies a sharp dissociation between visual performance and visual awareness, but signal detection theory indicates that it might be indistinguishable from the behavior of normal subjects near the lower limit of conscious vision, where the dissociations could arise trivially from using different response criteria during clinical and forced-choice tests. We tested the latter possibility with (...)
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  8.  89
    Aware or Unaware: Assessment of Cortical Blindness in Four Men and a Monkey.Petra Stoerig, Aspasia Zontanou & Alan Cowey - 2002 - Cerebral Cortex 12 (6):565-574.
  9. Wavelength Sensitivity in Blindsight. Wavelength Sensitivity in Blindsight.Petra Stoerig & Alan Cowey - 1989 - Brain 115:425-44.
     
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  10. Reflections on Blindsight.Alan Cowey & Petra Stoerig - 1992 - In A. David Milner & M. D. Rugg (eds.), The Neuropsychology of Consciousness. Academic Press.
     
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  11. The Neurobiology of Blindsight.Alan Cowey & Petra Stoerig - 1991 - Trends in Neurosciences 14:140-5.
  12.  60
    Edges, Colour and Awareness in Blindsight.Iona Alexander & Alan Cowey - 2010 - Consciousness and Cognition 19 (2):520-533.
    It remains unclear what is being processed in blindsight in response to faces, colours, shapes, and patterns. This was investigated in two hemianopes with chromatic and achromatic stimuli with sharp or shallow luminance or chromatic contrast boundaries or temporal onsets. Performance was excellent only when stimuli had sharp spatial boundaries. When discrimination between isoluminant coloured Gaussians was good it declined to chance levels if stimulus onset was slow. The ability to discriminate between instantaneously presented colours in the hemianopic field depended (...)
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  13.  36
    Cortical Color Blindness is Not ''Blindsight for Color''.Charles A. Heywood, Robert W. Kentridge & Alan Cowey - 1998 - Consciousness and Cognition 7 (3):410-423.
    Cortical color blindness, or cerebral achromatopsia, has been likened by some authors to ''blindsight'' for color or an instance of ''covert'' processing of color. Recently, it has been shown that, although such patients are unable to identify or discriminate hue differences, they nevertheless show a striking ability to process wavelength differences, which can result in preserved sensitivity to chromatic contrast and motion in equiluminant displays. Moreover, visually evoked cortical potentials can still be elicited in response to chromatic stimuli. We suggest (...)
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  14.  22
    Blindsight is Unlike Normal Conscious Vision: Evidence From an Exclusion Task.Navindra Persaud & Alan Cowey - 2008 - Consciousness and Cognition 17 (3):1050-1055.
    We explored whether information processed subconsciously in blindsight is qualitatively different from normal conscious processing. On each trial the blindsight patient GY was presented with a square-wave grating either in an upper or lower quadrant of his visual field and was asked to report the opposite of its location . We found that while GY was able to follow these exclusion instructions in his normal field, he tended to erroneously respond with the real location when the grating appeared in his (...)
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  15.  38
    Wavelength Sensitivity in Blindsight.Petra Stoerig & Alan Cowey - 1989 - Nature 342:916-18.
  16.  23
    Visual Perception and Phenomenal Consciousness.Petra Stoerig & Alan Cowey - 1995 - Behavioural Brain Research 71:147-156.
  17.  30
    Magnetic Stimulation Studies of Visual Cognition.Vincent Walsh & Alan Cowey - 1998 - Trends in Cognitive Sciences 2 (3):103-110.
  18.  24
    Chromatic Discrimination in a Cortically Colour-Blind Observer.Charles A. Heywood, Alan Cowey & F. Newcombe - 1991 - European Journal of Neuroscience 3:802-12.
  19.  8
    Induced Gamma-Band Oscillations Correlate with Awareness in Hemianopic Patient GY.Aaron Schurger, Alan Cowey & Catherine Tallon-Baudry - 2006 - Neuropsychologia 44 (10):1796-1803.
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  20.  10
    Increment Threshold Spectral Sensitivity in Blindsight: Evidence for Colour Opponency.Petra Stoerig & Alan Cowey - 1991 - Brain 114 (3):1487-1512.
  21. Why is Blindsight Blind?Paul Azzopardi & Alan Cowey - 2001 - In Beatrice De Gelder, Edward H. F. De Haan & Charles A. Heywood (eds.), Out of Mind: Varieties of Unconscious Processes. Oxford University Press. pp. 3-19.
     
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  22.  17
    Commentary to Note by Seth: Experiments Show What Post-Decision Wagering Measures☆.Navindra Persaud, Peter McLeod & Alan Cowey - 2008 - Consciousness and Cognition 17 (3):984-985.
  23.  17
    Visual Awareness: Still at Sea with Seeing?Alan Cowey - 1996 - Current Biology 6:45-47.
  24.  46
    Visual Detection in Monkeys with Blindsight.Alan Cowey & Petra Stoerig - 1997 - Neuopsychologia 35:929-39.
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  25. Colour and the Cortex: Wavelength Processing in Cortical Achromatopsia.Charles A. Heywood, Robert W. Kentridge & Alan Cowey - 2001 - In Beatrice De Gelder, Edward H. F. De Haan & Charles A. Heywood (eds.), Out of Mind: Varieties of Unconscious Processes. Oxford University Press. pp. 52-68.
  26.  40
    Contemporary Theories of Consciousness.Adam Z. J. Zeman, A. C. Grayling & Alan Cowey - 1997 - Journal of Neurology, Neurosurgery, and Psychiatry 62:549-552.
  27.  33
    Cerebral Achromatopsia: Colour Blindness Despite Wavelength Processing.Alan Cowey & Charles A. Heywood - 1997 - Trends in Cognitive Sciences 1 (4):133-139.
  28. Blindsight and Perceptual Consciousness: Neuropsychological Aspects of Striate Cortical Function.Petra Stoerig & Alan Cowey - 1993 - In B. Gulyas, D. Ottoson & P. Rol (eds.), Functional Organization of the Human Visual Cortex. Pergamon Press.
  29.  25
    Blindsight in Real Sight.Alan Cowey - 1995 - Nature 377:290-1.
  30. Filling in the Scotoma: A Study of Residual Vision After Striate Cortex Lesions in Monkeys.Lawrence Weiskrantz & Alan Cowey - 1970 - Progress in Physiological Psychology 3.
     
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  31.  28
    Effects of Unseen Stimuli on Reaction Times to Seen Stimuli in Monkeys with Blindsight.Alan Cowey, Petra Stoerig & Carolyne Le Mare - 1998 - Consciousness and Cognition 7 (3):312-323.
    In three macaque monkeys with unilateral removal of primary visual cortex and in one unoperated monkey, we measured reaction times to a visual target that was presented at a lateral eccentricity of 20o in the normal, left, visual hemifield. When an additional stimulus was presented at the corresponding position in the right hemifield (hemianopic in three of the monkeys), it significantly slowed the reaction time to the left target if it preceded it by delays from 100-500 msec. The most effective (...)
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  32.  25
    On Blind Criticism.Alan Cowey - 1983 - Behavioral and Brain Sciences 6 (3):451.
  33. Is Blindsight Motion Blind?Alan Cowey & Paul Azzopardi - 2001 - In Beatrice De Gelder, Edward H. F. De Haan & Charles A. Heywood (eds.), Out of Mind: Varieties of Unconscious Processes. Oxford University Press. pp. 87-103.
     
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  34. Current Awareness: Spotlight on Consciousness.Alan Cowey - 1997 - Developmental Medicine and Child Neurology 39:54-62.
  35.  17
    Wavelength Processing and Colour Experience.Petra Stoerig & Alan Cowey - 1992 - Behavioral and Brain Sciences 15 (1):53-53.
  36. Disruption of Visual Evoked Potentials Following a V1 Lesion: Implications for Blindsight.Anling Rao, Anna C. Nobre & Alan Cowey - 2001 - In Beatrice De Gelder, Edward H. F. De Haan & Charles A. Heywood (eds.), Out of Mind: Varieties of Unconscious Processes. Oxford University Press. pp. 69-86.
     
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