J J Barton

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi request reprint Scan patterns during the processing of facial identity in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Exp Brain Res 181:199-211. 2007
  2. ncbi request reprint The covert priming effect of faces in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    Neurology 63:2062-8. 2004
  3. ncbi request reprint Perceptual functions in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Perception 33:939-56. 2004
  4. ncbi request reprint Are patients with social developmental disorders prosopagnosic? Perceptual heterogeneity in the Asperger and socio-emotional processing disorders
    Jason J S Barton
    Department of Neurology, KS 452, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston MA 02215, USA
    Brain 127:1706-16. 2004
  5. ncbi request reprint "Retinal diplopia" associated with macular wrinkling
    Jason J S Barton
    Department of Neurology, KS 452, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    Neurology 63:925-7. 2004
  6. ncbi request reprint Ocular tracking of step-ramp targets by patients with unilateral cerebral lesions
    J J Barton
    Division of Neurology, Toronto Hospital, University of Toronto, Canada
    Brain 121:1165-83. 1998
  7. pmc Line bisection in hemianopia
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    J Neurol Neurosurg Psychiatry 64:660-2. 1998
  8. ncbi request reprint Quantitative ocular tests for myasthenia gravis: a comparative review with detection theory analysis
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    J Neurol Sci 155:104-14. 1998
  9. ncbi request reprint Impaired spatial coding within objects but not between objects in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Neurology 65:270-4. 2005
  10. doi request reprint Prosopagnosia associated with a left occipitotemporal lesion
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Neuropsychologia 46:2214-24. 2008

Research Grants

Detail Information

Publications65

  1. ncbi request reprint Scan patterns during the processing of facial identity in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Exp Brain Res 181:199-211. 2007
    ..In these two subjects the scanning data were consistent with other results from tests of configuration perception, imagery, and covert recognition...
  2. ncbi request reprint The covert priming effect of faces in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    Neurology 63:2062-8. 2004
    ..There are many methods of testing covert face recognition in prosopagnosia, but it is not clear whether different types of covert recognition share a common mechanism...
  3. ncbi request reprint Perceptual functions in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Perception 33:939-56. 2004
    ..Deficits in these functions may impair perception of subtle variations in object shape, and may be one mechanism by which the recognition defect in prosopagnosia can extend to other classes of object subcategorization...
  4. ncbi request reprint Are patients with social developmental disorders prosopagnosic? Perceptual heterogeneity in the Asperger and socio-emotional processing disorders
    Jason J S Barton
    Department of Neurology, KS 452, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston MA 02215, USA
    Brain 127:1706-16. 2004
    ..Heterogeneity in the perceptual processing of faces may imply pathogenetic heterogeneity, with important implications for genetic and rehabilitative studies of SDD...
  5. ncbi request reprint "Retinal diplopia" associated with macular wrinkling
    Jason J S Barton
    Department of Neurology, KS 452, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave, Boston, MA 02215, USA
    Neurology 63:925-7. 2004
    ..Displacement of the macula by vitreoretinal traction is an unusual cause of binocular diplopia that requires careful ophthalmoscopy to diagnose...
  6. ncbi request reprint Ocular tracking of step-ramp targets by patients with unilateral cerebral lesions
    J J Barton
    Division of Neurology, Toronto Hospital, University of Toronto, Canada
    Brain 121:1165-83. 1998
    ..Lesions that affect the human homologue of posterior parietal cortex cause asymmetric bi-directional defects in pursuit initiation and increased contralateral saccadic latencies...
  7. pmc Line bisection in hemianopia
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    J Neurol Neurosurg Psychiatry 64:660-2. 1998
    ..The contralateral bias in hemianopia may represent either non-veridical spatial representation within a visual hemifield or a consequence of the strategic adaptation of attention into contralateral hemispace after hemianopia...
  8. ncbi request reprint Quantitative ocular tests for myasthenia gravis: a comparative review with detection theory analysis
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    J Neurol Sci 155:104-14. 1998
    ..This analysis suggests that eye movement recordings of saccades or optokinetic nystagmus have potential as useful and inexpensive tests for myasthenia, and warrant further study...
  9. ncbi request reprint Impaired spatial coding within objects but not between objects in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Neurology 65:270-4. 2005
    ..This may be an example of impaired "within-object" spatial coding, which others propose to be distinct from "between-object" spatial coding...
  10. doi request reprint Prosopagnosia associated with a left occipitotemporal lesion
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Neuropsychologia 46:2214-24. 2008
    ..His prosopagnosia likely reflects partially anomalous rather than reversed lateralization of hemispheric perceptual functions...
  11. ncbi request reprint The inter-trial effects of stimulus and saccadic direction on prosaccades and antisaccades, in controls and schizophrenia patients
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Exp Brain Res 174:487-98. 2006
    ..These results suggest that saccades in humans are modulated by inter-trial effects attributable to both an 'inhibition of return'-like alternation advantage and directional plasticity...
  12. ncbi request reprint Switching, plasticity, and prediction in a saccadic task-switch paradigm
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Exp Brain Res 168:76-87. 2006
    ..While our model of response-system plasticity can explain a number of effects of dominance asymmetry in switching, other models fail to account for the paradoxical set-switch benefit for antisaccades...
  13. ncbi request reprint Reduced error-related activation in two anterior cingulate circuits is related to impaired performance in schizophrenia
    Frida E Polli
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02215, USA
    Brain 131:971-86. 2008
    ..Impairments in evaluating and learning from errors in schizophrenia may contribute to behaviour that is rigid and perseverative rather than optimally guided by outcomes, and may compromise performance across a wide range of tasks...
  14. pmc Response monitoring, repetitive behaviour and anterior cingulate abnormalities in autism spectrum disorders (ASD)
    Katharine N Thakkar
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02215, USA
    Brain 131:2464-78. 2008
    ..Illuminating the mechanisms and clinical significance of abnormal response monitoring in ASD represents a fruitful avenue for further research...
  15. ncbi request reprint Induction chemotherapy with docetaxel, cisplatin, fluorouracil, and leucovorin for squamous cell carcinoma of the head and neck: a phase I/II trial
    A D Colevas
    Division of Biostatistics, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
    J Clin Oncol 16:1331-9. 1998
    ..A phase I/II trial of docetaxel, cisplatin, fluorouracil (5-FU), and leucovorin (TPFL5) induction chemotherapy for patients with locally advanced squamous cell carcinoma of the head and neck (SCCHN)...
  16. ncbi request reprint Covert recognition in acquired and developmental prosopagnosia
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
    Neurology 57:1161-8. 2001
    ..Some patients with prosopagnosia have covert recognition, meaning that they retain some familiarity or knowledge of facial identity of which they are not aware...
  17. ncbi request reprint Blindsight modulation of motion perception
    James M Intriligator
    Harvard Medical School, USA
    J Cogn Neurosci 14:1174-83. 2002
    ..We conclude that indirect modulatory strategies are more effective than direct forced-choice methods at revealing residual motion perception after focal striate lesions...
  18. ncbi request reprint Investigations of face expertise in the social developmental disorders
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Neurology 69:860-70. 2007
    ..Patients with social developmental disorders (SDD), also known as autism spectrum disorders, may have impaired recognition of facial identity or facial expressions...
  19. ncbi request reprint Perception of facial expression and facial identity in subjects with social developmental disorders
    Rebecca L Hefter
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Neurology 65:1620-5. 2005
    ..The authors investigated whether this purported perceptual deficit was generalized to both facial expression and facial identity or whether these different types of facial perception were dissociated in SDDs...
  20. ncbi request reprint Task-switching with antisaccades versus no-go trials: a comparison of inter-trial effects
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
    Exp Brain Res 172:114-9. 2006
    ....
  21. ncbi request reprint Spatial processing in Bálint syndrome and prosopagnosia: a study of three patients
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston Massachusetts, USA
    J Neuroophthalmol 27:268-74. 2007
    ..We investigated the contribution of various visual cues to grouping processes that might determine whether single or multiple objects were perceived and therefore which type of spatial coding would be used for a stimulus...
  22. ncbi request reprint The biasing of figure-ground assignment by shading cues for objects and faces in prosopagnosia
    Rebecca Hefter
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Perception 37:1412-25. 2008
    ..This suggests that a subtler defect in face categorization accompanies their severe defect in face identification, consistent with predictions of computational models and recent data from functional imaging...
  23. ncbi request reprint Antisaccades and task-switching: interactions in controlled processing
    Mariya V Cherkasova
    Department of Neurology, KS452, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
    Exp Brain Res 144:528-37. 2002
    ..In either case, the paradoxical benefit of task-switching for antisaccades challenges current models of task-switching...
  24. ncbi request reprint Unilateral right parietal damage leads to bilateral deficit for high-level motion
    L Battelli
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Neuron 32:985-95. 2001
    ..However, the bilateral deficit suggests that the disruption is due to a bilateral loss in the temporal resolution of attention to transient events that drive the apparent motion percept...
  25. pmc Reduced cognitive control of response inhibition by the anterior cingulate cortex in autism spectrum disorders
    Yigal Agam
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02215, USA
    Neuroimage 52:336-47. 2010
    ..More generally, our findings suggest reduced cognitive control over behavior by the dACC in ASD...
  26. pmc Rostral and dorsal anterior cingulate cortex make dissociable contributions during antisaccade error commission
    Frida E Polli
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02215, USA
    Proc Natl Acad Sci U S A 102:15700-5. 2005
    ..These results show that accurate performance involves deactivation of the rACC and other default mode regions and suggest that both rACC and dACC contribute to the evaluation of error responses...
  27. ncbi request reprint Neural activity is modulated by trial history: a functional magnetic resonance imaging study of the effects of a previous antisaccade
    Dara S Manoach
    Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts 02129, USA
    J Neurosci 27:1791-8. 2007
    ..More generally, these results highlight the importance of trial history as a source of variability in both behavioral and neuroimaging studies...
  28. ncbi request reprint Reduced microstructural integrity of the white matter underlying anterior cingulate cortex is associated with increased saccadic latency in schizophrenia
    Dara S Manoach
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02215, USA
    Neuroimage 37:599-610. 2007
    ..Moreover, they suggest that anterior cingulate white matter abnormalities contribute to slower performance of volitional saccades and to inter-individual variability of saccadic latency in chronic, medicated schizophrenia...
  29. ncbi request reprint Information processing during face recognition: the effects of familiarity, inversion, and morphing on scanning fixations
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Perception 35:1089-105. 2006
    ..With morphed faces, subjects return to the upper face to resolve ambiguity, implying a greater importance of this region in face recognition...
  30. ncbi request reprint Schizophrenia patients show intact immediate error-related performance adjustments on an antisaccade task
    Frida E Polli
    Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA
    Schizophr Res 82:191-201. 2006
    ..We examined whether immediate error-related performance adjustments during the antisaccade task were intact in schizophrenia...
  31. ncbi request reprint The relation between antisaccade errors, fixation stability and prosaccade errors in schizophrenia
    Jason J S Barton
    Department of Neurology, University of British Columbia, Vancouver, BC, Canada
    Exp Brain Res 186:273-82. 2008
    ....
  32. ncbi request reprint Attending to faces: change detection, familiarization, and inversion effects
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
    Perception 32:15-28. 2003
    ....
  33. ncbi request reprint Bilateral deficits of transient visual attention in right parietal patients
    Lorella Battelli
    Vision Sciences Laboratory, Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Brain 126:2164-74. 2003
    ..Since flicker detection was normal for the patients, we suggest that the deficit lies at a level where stimulus transients are interpreted as the appearance or disappearance of objects...
  34. ncbi request reprint Lesions of the fusiform face area impair perception of facial configuration in prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    Neurology 58:71-8. 2002
    ..Functional imaging has revealed a focal region in the right fusiform gyrus activated specifically during face perception...
  35. ncbi request reprint Face imagery and its relation to perception and covert recognition in prosopagnosia
    Jason J S Barton
    Department of Neurology and Ophthalmology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    Neurology 61:220-5. 2003
    ..Current data on the relation of imagery to the perceptual function and neuroanatomy of prosopagnosic patients are mixed, and little is known about the type of facial information patients can access through imagery...
  36. ncbi request reprint Antisaccades and task switching: studies of control processes in saccadic function in normal subjects and schizophrenic patients
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    Ann N Y Acad Sci 956:250-63. 2002
    ..It suggests either carryover inhibition by antisaccadic performance in the prior trial or facilitation of antisaccades by simultaneous performance of other cognitive operations...
  37. ncbi request reprint Perception of global facial geometry in the inversion effect and prosopagnosia
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
    Neuropsychologia 41:1703-11. 2003
    ..We also tested a prosopagnosic patient, who showed the advantage for two spatial changes over one but lacked this geometric context effect, implying that she did not integrate local spatial information into overall facial structure...
  38. ncbi request reprint Schizophrenic subjects show deficient inhibition but intact task switching on saccadic tasks
    Dara S Manoach
    Department of Neurology, Human Vision and Eye Movement Laboratory, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
    Biol Psychiatry 51:816-26. 2002
    ..g., the Wisconsin Card Sort Test [WCST]). We investigated inhibition and task switching using saccadic tasks to determine whether schizophrenic patients have selective impairments of these executive functions...
  39. ncbi request reprint What is perseverated in schizophrenia? Evidence of abnormal response plasticity in the saccadic system
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
    J Abnorm Psychol 114:75-84. 2005
    ..Saccades in schizophrenia are characterized by perseveration of antisaccade-induced changes in the saccadic response system rather than failures to switch task set...
  40. ncbi request reprint Developmental prosopagnosia: a study of three patients
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
    Brain Cogn 51:12-30. 2003
    ..Deficits in luminance perception and spatial resolution are more associated with defective encoding for basic object-level recognition, as shown on tests of object and spatial perception...
  41. ncbi request reprint Discrimination of spatial relations and features in faces: effects of inversion and viewing duration
    J J Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    Br J Psychol 92:527-49. 2001
    ..These results are consistent with greater dependence on a serial component search strategy in inverted faces...
  42. ncbi request reprint Deficits in cortical visual function
    S F Stasheff
    Department of Neurology, Beth Israel Deaconess Medical Center and Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
    Ophthalmol Clin North Am 14:217-42, x. 2001
    ..Considerable evidence has accumulated showing that residual vision or even "blindsight," which is visual perception in the absence of awareness, can persist after lesion of striate cortex in some patients...
  43. ncbi request reprint What is meant by impaired configural processing in acquired prosopagnosia?
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
    Perception 38:242-60. 2009
    ....
  44. pmc Viewpoint invariance in the discrimination of upright and inverted faces
    Alissa Wright
    Faculty of Medicine, University of Toronto, Toronto, Canada
    Vision Res 48:2545-54. 2008
    ..We conclude that the effects of viewpoint variation on the perceptual discrimination of faces is not different for upright versus inverted faces, indicating that its effects are independent of the expertise that exists for upright faces...
  45. pmc Hemispheric differences in amygdala contributions to response monitoring
    Frida E Polli
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
    Neuroreport 20:398-402. 2009
    ....
  46. ncbi request reprint Vertical saccades in superior oblique palsy and Brown's syndrome
    J J Barton
    Human Vision and Eye Movement Laboratory, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
    J Neuroophthalmol 21:250-5. 2001
    ..To compare saccadic dynamics in superior oblique palsy and Brown's syndrome...
  47. ncbi request reprint A phase II study of combined oral uracil and ftorafur with leucovorin for patients with squamous cell carcinoma of the head and neck
    A D Colevas
    Head and Neck Oncology Program, Department of Adult Oncology, Dana Farber Cancer Institute, Boston, Massachusetts, USA
    Cancer 92:326-31. 2001
    ....
  48. ncbi request reprint The field defects of anterior temporal lobectomy: a quantitative reassessment of Meyer's loop
    Jason J S Barton
    Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
    Brain 128:2123-33. 2005
    ..The patterns of field loss support a revised retinotopic model in which the most anterior fibers of Meyer's loop represent the superior field, not the vertical meridian as traditionally proposed...
  49. doi request reprint It doesn't matter how you feel. The facial identity aftereffect is invariant to changes in facial expression
    Christopher J Fox
    Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada
    J Vis 8:11.1-13. 2008
    ..We conclude that, in contrast to the significant identity-dependent component seen in representations of expression, representations of facial identity are independent of variations in expression...
  50. doi request reprint The "diagonal effect": a systematic error in oblique antisaccades
    John D Koehn
    Human Vision and Eye Movement Laboratory, University of British Columbia, Vancouver, Canada
    J Neurophysiol 100:587-97. 2008
    ....
  51. doi request reprint Disconnection in prosopagnosia and face processing
    Christopher J Fox
    Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
    Cortex 44:996-1009. 2008
    ....
  52. doi request reprint The effects of face inversion on the perception of long-range and local spatial relations in eye and mouth configuration
    Alla Sekunova
    Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, British Columbia, Canada
    J Exp Psychol Hum Percept Perform 34:1129-35. 2008
    ....
  53. doi request reprint Detection of unexpected events during spatial navigation in humans: bottom-up attentional system and neural mechanisms
    Giuseppe Iaria
    Human Vision and Eye Movement Laboratory, Faculty of Medicine, Division of Neurology, Department of Medicine, University of British Columbia, VGH Eye Care Center, Section D, 2550 Willow Street, Vancouver, BC, Canada V5Z 3N9
    Eur J Neurosci 27:1017-25. 2008
    ....
  54. doi request reprint Navigational skills correlate with hippocampal fractional anisotropy in humans
    Giuseppe Iaria
    Department of Medicine Neurology, Human Vision and Eye Movement Laboratory, University of British Columbia, Canada
    Hippocampus 18:335-9. 2008
    ..These results are consistent with the role of the hippocampus in navigation, and suggest that its microstructural properties may contribute to the intersubject variability observed in spatial orientation...
  55. ncbi request reprint Vision and the brain, Part II
    Jason J S Barton
    Neurol Clin 21:ix-xi. 2003
  56. ncbi request reprint The relationship of saccadic peak velocity to latency: evidence for a new prosaccadic abnormality in schizophrenia
    Rajeev S Ramchandran
    University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
    Exp Brain Res 159:99-107. 2004
    ....
  57. ncbi request reprint Antisaccade velocity, but not latency, results from a lack of saccade visual guidance
    Jay A Edelman
    Department of Biology, The City College of New York, Convent Ave at 138th St, J526, Marshak Science Building, New York, NY 10031, USA
    Vision Res 46:1411-21. 2006
    ..These results suggest that the lower velocity and increased dysmetria of traditional antisaccades result from the absence of a visual target, but their longer latency is more likely a result of suppressing a prosaccadic reflex...
  58. ncbi request reprint Seeing trees OR seeing forests in simultanagnosia: attentional capture can be local or global
    Kirsten A Dalrymple
    Department of Psychology, University of British Columbia, Vancouver, BC, Canada
    Neuropsychologia 45:871-5. 2007
    ..Capture likely occurs because of a pathological restriction and/or rigidity of attention, but the type of capture depends upon the competitive balance between global and local salience...
  59. ncbi request reprint What is adapted in face adaptation? The neural representations of expression in the human visual system
    Christopher J Fox
    Graduate Program in Neuroscience, University of British Columbia, Vancouver BC, Canada
    Brain Res 1127:80-9. 2007
    ..The identity-independent aftereffect suggests the existence of a 'visual semantic' for facial expression in the human visual system...
  60. ncbi request reprint "Sequence Agnosia" in Bálint's syndrome: defects in visuotemporal processing after bilateral parietal damage
    George L Malcolm
    University of British Columbia, Canada
    J Cogn Neurosci 19:102-8. 2007
    ..The deficit was also present with auditory stimuli, indicating a multimodal failure of temporal sequencing. These findings show that bilateral parietal lesions affect not only the spatial but also the temporal organization of perception...
  61. ncbi request reprint Task-switching in schizophrenia: active switching costs and passive carry-over effects in an antisaccade paradigm
    Cathleen Greenzang
    Department of Neurobiology, Harvard College, Cambridge, MA, USA
    Exp Brain Res 181:493-502. 2007
    ..Thus problems with executive control in schizophrenia may not affect specific task-switching operations...
  62. pmc Where left becomes right: a magnetoencephalographic study of sensorimotor transformation for antisaccades
    So Young Moon
    Department of Neurology, University of British Columbia, Vancouver, BC, Canada V6T 1Z4
    Neuroimage 36:1313-23. 2007
    ..These findings suggest that sensorimotor transformation is the product of coordinated activity across the intraparietal sulcus and frontal eye field, key components of a cortical network for saccadic generation...
  63. pmc Factors contributing to the adaptation aftereffects of facial expression
    Andrea Butler
    Faculty of Medicine, University of British Columbia, Vancouver BC, Canada
    Brain Res 1191:116-26. 2008
    ..We conclude that facial expression aftereffects are not due to local adaptation to image elements but due to high-level adaptation of neural representations that involve both facial features and facial configuration...
  64. ncbi request reprint Regional variation in the inversion effect for faces: differential effects for feature shape, feature configuration, and external contour
    George L Malcolm
    Department of Psychology, University of St Andrews, St Andrews KY16 9JU, Scotland, UK
    Perception 33:1221-31. 2004
    ..These results suggest that the orientation-dependent face mechanism has a rapid whole-face processing capacity specific to the internal second-order (coordinate) spatial relations of facial features...
  65. ncbi request reprint Distractor effects on saccade trajectories: a comparison of prosaccades, antisaccades, and memory-guided saccades
    Wieske van Zoest
    Departments of Psychology, Ophthalmology and Visual Sciences, University of British Columbia, 2136 West Mall, V6T 1Z4, Vancouver, BC, Canada
    Exp Brain Res 186:431-42. 2008
    ....

Research Grants5

  1. Perceptual encoding and imagery in prosopagnosia
    Jason Barton; Fiscal Year: 2007
    ..From our prior work, we hypothesize that covert or unconscious recognition is the residual product of a partially damaged face network in the brain. We propose a functional imaging experiment to test this hypothesis. ..