Research Topics
| J J BartonSummaryAffiliation: Harvard University Country: USA Publications
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Publications
Disorders of face perception and recognitionJason J Barton
Beth Israel Deaconess Medical Center, Harvard Medical School, Boston University, Boston, MA, USA
Neurol Clin 21:521-48. 2003....- Developmental prosopagnosia: a study of three patientsJason 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... - What is perseverated in schizophrenia? Evidence of abnormal response plasticity in the saccadic systemJason 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... - Perception of global facial geometry in the inversion effect and prosopagnosiaJason 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... - Face imagery and its relation to perception and covert recognition in prosopagnosiaJason 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... - Attending to faces: change detection, familiarization, and inversion effectsJason J S Barton
Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
Perception 32:15-28. 2003.... - Antisaccades and task switching: studies of control processes in saccadic function in normal subjects and schizophrenic patientsJason 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... - Lesions of the fusiform face area impair perception of facial configuration in prosopagnosiaJason 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... - Vertical saccades in superior oblique palsy and Brown's syndromeJ 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... - Covert recognition in acquired and developmental prosopagnosiaJ 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... - Discrimination of spatial relations and features in faces: effects of inversion and viewing durationJ 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... 
Prosopagnosia associated with a left occipitotemporal lesionJason 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...- Impaired spatial coding within objects but not between objects in prosopagnosiaJason 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... - Switching, plasticity, and prediction in a saccadic task-switch paradigmJason 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... - The inter-trial effects of stimulus and saccadic direction on prosaccades and antisaccades, in controls and schizophrenia patientsJason 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... - Task-switching in schizophrenia: active switching costs and passive carry-over effects in an antisaccade paradigmCathleen 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... - Reduced error-related activation in two anterior cingulate circuits is related to impaired performance in schizophreniaFrida 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... 
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...- Line bisection in hemianopiaJ 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... - Spatial processing in Bálint syndrome and prosopagnosia: a study of three patientsJason 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... - Perception of facial expression and facial identity in subjects with social developmental disordersRebecca L Hefter
Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
Neurology 65:1620-5. 2005..The results argue against hypotheses that the social dysfunction in social developmental disorder causes a generalized failure to acquire face-processing skills... - Task-switching with antisaccades versus no-go trials: a comparison of inter-trial effectsJason J S Barton
Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
Exp Brain Res 172:114-9. 2006.... - Investigations of face expertise in the social developmental disordersJason 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... - Antisaccades and task-switching: interactions in controlled processingMariya 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... - Blindsight modulation of motion perceptionJames 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... - The biasing of figure-ground assignment by shading cues for objects and faces in prosopagnosiaRebecca 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... - Ocular tracking of step-ramp targets by patients with unilateral cerebral lesionsJ 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... - A phase II study of combined oral uracil and ftorafur with leucovorin for patients with squamous cell carcinoma of the head and neckA D Colevas
Head and Neck Oncology Program, Department of Adult Oncology, Dana Farber Cancer Institute, Boston, Massachusetts, USA
Cancer 92:326-31. 2001.... - Quantitative ocular tests for myasthenia gravis: a comparative review with detection theory analysisJ 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... - Unilateral right parietal damage leads to bilateral deficit for high-level motionL 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... - Induction chemotherapy with docetaxel, cisplatin, fluorouracil, and leucovorin for squamous cell carcinoma of the head and neck: a phase I/II trialA 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)... - Information processing during face recognition: the effects of familiarity, inversion, and morphing on scanning fixationsJason 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... - "Retinal diplopia" associated with macular wrinklingJason 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... - Neural activity is modulated by trial history: a functional magnetic resonance imaging study of the effects of a previous antisaccadeDara 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... - Scan patterns during the processing of facial identity in prosopagnosiaJason 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... - Reduced microstructural integrity of the white matter underlying anterior cingulate cortex is associated with increased saccadic latency in schizophreniaDara 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... - Schizophrenic subjects show deficient inhibition but intact task switching on saccadic tasksDara 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..We hypothesize that inhibition and task switching are mediated by distinct neural networks, only one of which is dysfunctional in schizophrenia... - Schizophrenia patients show intact immediate error-related performance adjustments on an antisaccade taskFrida 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... - Perceptual functions in prosopagnosiaJason 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... - The covert priming effect of faces in prosopagnosiaJason 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... - Are patients with social developmental disorders prosopagnosic? Perceptual heterogeneity in the Asperger and socio-emotional processing disordersJason 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... - Bilateral deficits of transient visual attention in right parietal patientsLorella 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... - Rostral and dorsal anterior cingulate cortex make dissociable contributions during antisaccade error commissionFrida 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... - Reduced cognitive control of response inhibition by the anterior cingulate cortex in autism spectrum disordersYigal 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... - Deficits in cortical visual functionS 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... - Cross-orientation transfer of adaptation for facial identity is asymmetric: a study using contrast-based recognition thresholdsXiaoyue M Guo
Wellesley College, Wellesley, MA, USA
Vision Res 49:2254-60. 2009..While these results are consistent with the dual-mode hypothesis, they can also be accounted for by a single population of units of varying orientation selectivity... - 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.... - Hemispheric differences in amygdala contributions to response monitoringFrida E Polli
Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
Neuroreport 20:398-402. 2009.... - The field defects of anterior temporal lobectomy: a quantitative reassessment of Meyer's loopJason 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... - It doesn't matter how you feel. The facial identity aftereffect is invariant to changes in facial expressionChristopher 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... - The "diagonal effect": a systematic error in oblique antisaccadesJohn D Koehn
Human Vision and Eye Movement Laboratory, University of British Columbia, Vancouver, Canada
J Neurophysiol 100:587-97. 2008.... - Disconnection in prosopagnosia and face processingChristopher J Fox
Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
Cortex 44:996-1009. 2008.... - The effects of face inversion on the perception of long-range and local spatial relations in eye and mouth configurationAlla 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.... - Detection of unexpected events during spatial navigation in humans: bottom-up attentional system and neural mechanismsGiuseppe 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.... - Navigational skills correlate with hippocampal fractional anisotropy in humansGiuseppe 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... - Vision and the brain, Part IIJason J S Barton
Neurol Clin 21:ix-xi. 2003 - The relationship of saccadic peak velocity to latency: evidence for a new prosaccadic abnormality in schizophreniaRajeev S Ramchandran
University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
Exp Brain Res 159:99-107. 2004.... - Antisaccade velocity, but not latency, results from a lack of saccade visual guidanceJay 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... - Seeing trees OR seeing forests in simultanagnosia: attentional capture can be local or globalKirsten 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... - What is adapted in face adaptation? The neural representations of expression in the human visual systemChristopher 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... - "Sequence Agnosia" in Bálint's syndrome: defects in visuotemporal processing after bilateral parietal damageGeorge 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... - Where left becomes right: a magnetoencephalographic study of sensorimotor transformation for antisaccadesSo 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... - The relation between antisaccade errors, fixation stability and prosaccade errors in schizophreniaJason J S Barton
Department of Neurology, University of British Columbia, Vancouver, BC, Canada
Exp Brain Res 186:273-82. 2008.... - Factors contributing to the adaptation aftereffects of facial expressionAndrea 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... - Regional variation in the inversion effect for faces: differential effects for feature shape, feature configuration, and external contourGeorge 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... - Distractor effects on saccade trajectories: a comparison of prosaccades, antisaccades, and memory-guided saccadesWieske 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....