School of Psychology
David R. Badcock has not added Biography.
If you are David R. Badcock and would like to personalize this page please email our Author Liaison for assistance.
Global speed processing: evidence for local averaging within, but not across two speed ranges.
Vision research Dec, 2002 | Pubmed ID: 12480073
Contrast-processing dysfunction in both magnocellular and parvocellular pathways in migraineurs with or without aura.
Investigative ophthalmology & visual science Jan, 2003 | Pubmed ID: 12506107
Neither here nor there: localizing conflicting visual attributes.
Journal of vision , 2003 | Pubmed ID: 12803535
Motion distorts perceived depth.
Vision research Aug, 2003 | Pubmed ID: 12826103
Mach bands change asymmetrically during solar eclipses.
Perception , 2003 | Pubmed ID: 12892435
Pattern cues disambiguate perceived direction in simple moving stimuli.
Vision research Oct, 2003 | Pubmed ID: 12962987
Steady viewing dissipates global structure.
Perception , 2004 | Pubmed ID: 15035334
Decreased visual field sensitivity measured 1 day, then 1 week, after migraine.
Investigative ophthalmology & visual science Apr, 2004 | Pubmed ID: 15037569
Psychophysical measurement of neural adaptation abnormalities in magnocellular and parvocellular pathways in glaucoma.
Investigative ophthalmology & visual science Jun, 2004 | Pubmed ID: 15161849
Interactions between luminance and contrast signals in global form detection.
Vision research Mar, 2005 | Pubmed ID: 15644228
Abnormal global processing along the dorsal visual pathway in autism: a possible mechanism for weak visuospatial coherence?
Neuropsychologia , 2005 | Pubmed ID: 15769490
Implicit exploitation of regularities: novel correlations in images quickly alter visual perception.
Vision research Apr, 2006 | Pubmed ID: 16139324
The detection of both global motion and global form is disrupted in glaucoma.
Investigative ophthalmology & visual science Oct, 2005 | Pubmed ID: 16186351
Processing of global form and motion in migraineurs.
Vision research Jan, 2006 | Pubmed ID: 16257032
A simple Hebbian/anti-Hebbian network learns the sparse, independent components of natural images.
Neural computation Feb, 2006 | Pubmed ID: 16378520
Vernier acuity is normal in migraine, whereas global form and global motion perception are not.
Investigative ophthalmology & visual science Jul, 2006 | Pubmed ID: 16799069
Detection of shape in radial frequency contours: independence of local and global form information.
Vision research May, 2007 | Pubmed ID: 17316737
Contrast sensitivity changes due to glaucoma and normal aging: low-spatial-frequency losses in both magnocellular and parvocellular pathways.
Investigative ophthalmology & visual science May, 2007 | Pubmed ID: 17460269
Examining encoding imprecision in spatial working memory in schizophrenia.
Schizophrenia research Mar, 2008 | Pubmed ID: 17804202
Selectivity for coherence in polar orientation in human form vision.
Vision research Nov, 2007 | Pubmed ID: 17920098
Perception of direction of motion reflects the early integration of first and second-order stimulus spatial properties.
Journal of vision , 2008 | Pubmed ID: 18484851
Radial frequency adaptation suggests polar-based coding of local shape cues.
Vision research Sep, 2008 | Pubmed ID: 18675841
Luminance and contrast cues are integrated in global shape detection with contours.
Vision research Sep, 2008 | Pubmed ID: 18703078
Spatial summation properties for magnocellular and parvocellular pathways in glaucoma.
Investigative ophthalmology & visual science Mar, 2009 | Pubmed ID: 18936145
Brief report: visuospatial analysis and self-rated autistic-like traits.
Journal of autism and developmental disorders Apr, 2009 | Pubmed ID: 18949549
Second-order orientation cues to the axis of motion.
Vision research Feb, 2009 | Pubmed ID: 19084034
Selective attention contributes to global processing in vision.
Journal of vision , 2009 | Pubmed ID: 19271916
Narrow-band radial frequency shape channels revealed by sub-threshold summation.
Vision research Mar, 2009 | Pubmed ID: 19275912
Global visual processing and self-rated autistic-like traits.
Journal of autism and developmental disorders Sep, 2009 | Pubmed ID: 19381793
Radial frequency adaptation reveals interacting contour shape channels.
Vision research Sep, 2009 | Pubmed ID: 19580822
Spatial-frequency tuning in the pooling of one- and two-dimensional motion signals.
Vision research Nov, 2009 | Pubmed ID: 19732787
Impairments of contrast discrimination and contrast adaptation in glaucoma.
Investigative ophthalmology & visual science Feb, 2010 | Pubmed ID: 19741250
Spatial localization: interpolating first- and second-order visual structure.
Journal of vision , 2009 | Pubmed ID: 19757932
Adaptive pooling of visual motion signals by the human visual system revealed with a novel multi-element stimulus.
Journal of vision , 2009 | Pubmed ID: 19757943
A new step towards understanding Embedded Figures Test performance in the autism spectrum: the radial frequency search task.
Neuropsychologia Jan, 2010 | Pubmed ID: 19786040
Position encoding of the centres of global structure: separate form and motion processes.
Vision research Mar, 2009 | Pubmed ID: 19948112
Perception of shapes targeting local and global processes in autism spectrum disorders.
Journal of child psychology and psychiatry, and allied disciplines Jun, 2010 | Pubmed ID: 20070450
Vision in developmental disorders: is there a dorsal stream deficit?
Brain research bulletin May, 2010 | Pubmed ID: 20211706
Local motion effects on form in radial frequency patterns.
Journal of vision , 2010 | Pubmed ID: 20377297
Impaired spatial working memory maintenance in schizophrenia involves both spatial coordinates and spatial reference frames.
Psychiatry research Oct, 2010 | Pubmed ID: 20493553
Center-surround visual motion processing in migraine.
Investigative ophthalmology & visual science Nov, 2010 | Pubmed ID: 20505209
Visual search performance in the autism spectrum II: the radial frequency search task with additional segmentation cues.
Neuropsychologia Dec, 2010 | Pubmed ID: 20946906
No interaction of first- and second-order signals in the extraction of global-motion and optic-flow.
Vision research Feb, 2011 | Pubmed ID: 21130796
Global shape aftereffects have a local substrate: A tilt aftereffect field.
Journal of vision , 2010 | Pubmed ID: 21149313
Migraine increases centre-surround suppression for drifting visual stimuli.
PloS one , 2011 | Pubmed ID: 21494594
Increased internal noise cannot account for motion coherence processing deficits in migraine.
Cephalalgia : an international journal of headache Aug, 2011 | Pubmed ID: 21768181
Predictability affects the perception of audiovisual synchrony in complex sequences.
Attention, perception & psychophysics Oct, 2011 | Pubmed ID: 21800221
The influence of spatial orientation on the perceived path of visual saltatory motion.
Journal of vision , 2011 | Pubmed ID: 21844167
Evidence for increased internal noise in migraineurs for contrast and shape processing.
Cephalalgia : an international journal of headache Jan, 2012 | Pubmed ID: 22174353
Size-induced distortions in perceptual maps of visual space.
Journal of vision , 2012 | Pubmed ID: 22510976
Rapidly acquired shape and face aftereffects are retinotopic and local in origin.
Vision research Jul, 2012 | Pubmed ID: 22683687
Local contextual interactions can result in global shape misperception.
Journal of vision , 2012 | Pubmed ID: 23035131
Visual search targeting either local or global perceptual processes differs as a function of autistic-like traits in the typically developing population.
Journal of autism and developmental disorders Jun, 2013 | Pubmed ID: 23054202
The role of preparation time in the attentional blink.
Vision research Jan, 2013 | Pubmed ID: 23123523
Effect of form cues on 1D and 2D motion pooling.
Vision research Jan, 2013 | Pubmed ID: 23131840
Further evidence that local cues to shape in RF patterns are integrated globally.
Journal of vision , 2012 | Pubmed ID: 23197768
Detecting global form: separate processes required for Glass and radial frequency patterns.
Frontiers in computational neuroscience , 2013 | Pubmed ID: 23658542
Near their thresholds for detection, shapes are discriminated by the angular separation of their corners.
PloS one , 2013 | Pubmed ID: 23741521
Training and the attentional blink: Limits overcome or expectations raised?
Psychonomic bulletin & review Jul, 2013 | Pubmed ID: 23884691
On the hierarchical inheritance of aftereffects in the visual system.
Frontiers in psychology , 2013 | Pubmed ID: 23914180
The shape of motion perception: Global pooling of transformational apparent motion.
Journal of vision , 2013 | Pubmed ID: 24259672
Detecting shape change: characterizing the interaction between texture-defined and contour-defined borders.
Journal of vision Dec, 2013 | Pubmed ID: 24344055
Temporal cues and the attentional blink: a further examination of the role of expectancy in sequential object perception.
Attention, perception & psychophysics Nov, 2014 | Pubmed ID: 24935807
Enhanced global integration of closed contours in individuals with high levels of autistic-like traits.
Vision research Oct, 2014 | Pubmed ID: 25175114
Global shape processing involves feature-selective and feature-agnostic coding mechanisms.
Journal of vision Sep, 2014 | Pubmed ID: 25240064
Modulated textures with shape structures implied by a closed flow are processed globally.
Journal of vision Mar, 2015 | Pubmed ID: 25805177
Tolerance for local and global differences in the integration of shape information.
Journal of vision Mar, 2015 | Pubmed ID: 25814547
Are Participants Aware of the Type and Intensity of Transcranial Direct Current Stimulation?
PloS one , 2016 | Pubmed ID: 26863314
A Metaanalysis of Perceptual Organization in Schizophrenia, Schizotypy, and Other High-Risk Groups Based on Variants of the Embedded Figures Task.
Frontiers in psychology , 2016 | Pubmed ID: 26941688
Both harmful and (some) helpful behaviours from others are associated with increased expression of schizotypal traits.
Psychiatry research 05, 2016 | Pubmed ID: 27058156
Dissociation of local and global contributions to detection of shape with age.
Journal of experimental psychology. Human perception and performance 11, 2016 | Pubmed ID: 27379873
Loneliness and Schizotypy Are Distinct Constructs, Separate from General Psychopathology.
Frontiers in psychology , 2016 | Pubmed ID: 27458412
Temporal synchrony is an effective cue for grouping and segmentation in the absence of form cues.
Journal of vision Sep, 2016 | Pubmed ID: 27690163
Separate banks of information channels encode size and aspect ratio.
Journal of vision 03, 2017 | Pubmed ID: 28362901
Global processing of random-phase radial frequency patterns but not modulated lines.
Journal of vision 08, 2017 | Pubmed ID: 28837964
Mismatched summation mechanisms in older adults for the perception of small moving stimuli.
Vision research 01, 2018 | Pubmed ID: 29097237
Visual search reveals a critical component to shape.
Journal of vision 02, 2018 | Pubmed ID: 29392277
Suprathreshold contrast summation over area using drifting gratings.
Journal of vision 04, 2018 | Pubmed ID: 29710310
The effect of spatiotemporal displacement on the integration of shape information.
Journal of vision 05, 2018 | Pubmed ID: 29904779
Integration of shape information occurs around closed contours but not across them.
Journal of vision 05, 2018 | Pubmed ID: 29904781
Convergent evidence for global processing of shape.
Journal of vision 07, 2018 | Pubmed ID: 30029272
Poorer Search Efficiency in Healthy Young Adults With High Schizotypal Personality Traits.
Frontiers in psychiatry , 2018 | Pubmed ID: 30050472
Poorer Integration of Local Orientation Information Occurs in Students With High Schizotypal Personality Traits.
Frontiers in psychiatry , 2018 | Pubmed ID: 30405458
Phase specific shape aftereffects explained by the tilt aftereffect.
Journal of experimental psychology. Human perception and performance Jul, 2019 | Pubmed ID: 31021154
Relating excitatory and inhibitory neurochemicals to visual perception: A magnetic resonance study of occipital cortex between migraine events.
PloS one , 2019 | Pubmed ID: 31291247
A new visual illusion of aspect-ratio context.
Vision research 12, 2019 | Pubmed ID: 31678618
Shape partitioning interacts with global shape integration.
Vision research 01, 2020 | Pubmed ID: 31812848
Motion direction tuning in centre-surround suppression of contrast.
Vision research 02, 2021 | Pubmed ID: 33385715
Using perceptual tasks to selectively measure magnocellular and parvocellular performance: Rationale and a user's guide.
Psychonomic bulletin & review Aug, 2021 | Pubmed ID: 33742424
The temporal integration windows for visual mirror symmetry.
Vision research 11, 2021 | Pubmed ID: 34352477
Analysis of shape uses local apparent position rather than physical position.
Journal of vision 09, 2021 | Pubmed ID: 34473200
Visual contrast perception in visual snow syndrome reveals abnormal neural gain but not neural noise.
Brain : a journal of neurology Oct, 2021 | Pubmed ID: 34633444
Lateral inhibition between banks of orientation selective channels predicts shape context effects: A tilt-illusion field.
Vision research 03, 2022 | Pubmed ID: 34894488
ABOUT JoVE
Copyright © 2024 MyJoVE Corporation. All rights reserved