Research Topics
| Kirsten O'HearnSummaryAffiliation: University of Pittsburgh Country: USA Publications
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Detail Information
Publications
Working memory impairment in people with Williams syndrome: effects of delay, task and stimuliKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh Medical Center, Laboratory of Neurocognitive Development, 112 Loeffler Building, 121 Meyran Avenue, Pittsburgh, PA 15213, USA
Brain Cogn 69:495-503. 2009..Abnormalities in the parietal lobe/dorsal stream in WS may damage not only the representation of spatial location but may also impact WM for visual stimuli more generally...- The development of individuation in autismKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh, PA, USA
J Exp Psychol Hum Percept Perform 39:494-509. 2013..These results reveal how core visual processes function in autism, and provide insight into the architecture of vision (i.e., individuation appears distinct from visual strengths in autism, such as visual search)... - Object recognition in Williams syndrome: uneven ventral stream activationKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh, USA
Dev Sci 14:549-65. 2011..We discuss the possible causes of this unusual topography and implications for understanding the behavioral profile of people with WS... - Deficits in adults with autism spectrum disorders when processing multiple objects in dynamic scenesKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
Autism Res 4:132-42. 2011..Improvements in visual processing that underlie mature representation of scenes may not occur in ASD, suggesting that late developing brain processes are affected... - Lack of developmental improvement on a face memory task during adolescence in autismKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
Neuropsychologia 48:3955-60. 2010..This result underscores the importance of characterizing adolescent development for understanding ASD, and suggests additional opportunities for intervention... - Developmental profiles for multiple object tracking and spatial memory: typically developing preschoolers and people with Williams syndromeKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA 15213, USA
Dev Sci 13:430-40. 2010.... 
Mathematical skills in Williams syndrome: insight into the importance of underlying representationsKirsten O'Hearn
Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA
Dev Disabil Res Rev 15:11-20. 2009....- Neurodevelopment and executive function in autismKirsten O'Hearn
University of Pittsburgh, PA 15213, USA
Dev Psychopathol 20:1103-32. 2008..Despite developmental gains, mature executive functioning is limited in autism, reflecting abnormalities in wide-spread brain networks that may lead to impaired processing of complex information across all domains... - Mathematical skill in individuals with Williams syndrome: evidence from a standardized mathematics batteryKirsten O'Hearn
Johns Hopkins University, Baltimore, MD, USA
Brain Cogn 64:238-46. 2007..These findings add to evidence that components of mathematical knowledge may be differentially damaged in developmental disorders... 
Object recognition with severe spatial deficits in Williams syndrome: sparing and breakdownBarbara Landau
Department of Cognitive Science, Krieger Hall, Johns Hopkins University, Baltimore, MD 21218, USA
Cognition 100:483-510. 2006....- Orientation perception in Williams Syndrome: discrimination and integrationMelanie Palomares
Psychological and Brain Sciences, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 20874, USA
Brain Cogn 70:21-30. 2009..These may reflect largely separate visuospatial mechanisms... - Normal susceptibility to visual illusions in abnormal development: evidence from Williams syndromeMelanie Palomares
Psychological and Brain Sciences, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 20874, USA
Perception 38:186-99. 2009..Moreover, these results suggest that implicit and non-implicit integration of spatial information have different vulnerabilities in abnormal development... - Visuospatial interpolation in typically developing children and in people with Williams SyndromeMelanie Palomares
Psychological and Brain Sciences, Johns Hopkins University, 3400 North Charles Street, Ames Hall, Baltimore, MD 21218, USA
Vision Res 48:2439-50. 2008..We hypothesize that WS individuals and young children can use stimulus-driven grouping cues for bottom-up integration, but have immature mechanisms for top-down integration of spatial information... - Multiple object tracking in people with Williams syndrome and in normally developing childrenBarbara Landau
Department of Cognitive Science, Johns Hopkins University, Baltimore, MD 21218, USA
Psychol Sci 16:905-12. 2005..Error analysis revealed that all groups had "slippery" indexes, falsely identifying target neighbors, and further suggested that people with Williams syndrome deploy fewer indexes than do people without this disorder... - What has fMRI told us about the development of cognitive control through adolescence?Beatriz Luna
Laboratory of Neurocognitive Development, Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
Brain Cogn 72:101-13. 2010.... - Objects, motions, and paths: spatial language in children with Williams syndromeBarbara Landau
Department of Cognitive Science, Johns Hopkins University, Baltimore, MD 21218, USA
Dev Neuropsychol 23:105-37. 2003..These findings have implications for the relationship between spatial language and other aspects of spatial cognition... - Vision for perception and vision for action: normal and unusual developmentDaniel D Dilks
Department of Cognitive Science, Johns Hopkins University, USA
Dev Sci 11:474-86. 2008..These findings suggest that the 'how' system may be relatively slow to develop and more vulnerable to breakdown than the 'what' system... - Spatial representation across species: geometry, language, and mapsBarbara Landau
Johns Hopkins University, Baltimore, MD 21218, USA
Curr Opin Neurobiol 19:12-9. 2009..The capacity to reorient using geometry is present in humans by the age of 18 months... - Starting at the end: the importance of goals in spatial languageLaura Lakusta
Department of Cognitive Science, Johns Hopkins University, Krieger Hall, 3400 North Charles Street, Baltimore, MD 21218, USA
Cognition 96:1-33. 2005..g. 'give' vs. 'get'). The results are discussed in terms of non-linguistic foundations of spatial language and the linguistic mapping biases that arise when we describe what we see... - Figure copying in Williams syndrome and normal subjectsMaria-Alexandra Georgopoulos
Brain Sciences Center, Minneapolis Veterans Affairs Medical Center, Minneapolis, MN, USA
Exp Brain Res 157:137-46. 2004..These findings indicate that the principles guiding copying are similar in the two groups and suggest that WS is a case of developmental rather than deviance disorder... - Motion processing specialization in Williams syndromeJason E Reiss
Department of Psychology, University of Delaware, Newark, 19716, USA
Vision Res 45:3379-90. 2005..The nature of the motion deficit is considered, including the implications for WS dorsal/ventral processing... - Spatial breakdown in spatial construction: evidence from eye fixations in children with Williams syndromeJames E Hoffman
Department of Psychology, University of Delaware, Newark, DE 19716, USA
Cogn Psychol 46:260-301. 2003..Moreover, estimates of the errors in representing the identity and location of model blocks derived from Experiment 2 provided a good account of the observed errors in the block construction task of Experiment 1... - Intact perception of biological motion in the face of profound spatial deficits: Williams syndromeHeather Jordan
Department of Psychology, University of Delaware, Newark 19716, USA
Psychol Sci 13:162-7. 2002..They provide the first evidence of selective sparing of a specialized spatial system in individuals with a known genetic impairment...