Research Topics
| K M HeilmanSummaryAffiliation: University of Florida Country: USA Publications
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Detail Information
Publications
Possible mechanisms of anosognosia: a defect in self-awarenessK M Heilman
Department of Neurology, University of Florida College of Medicine, Gainesville 32610 0236, USA
Philos Trans R Soc Lond B Biol Sci 353:1903-9. 1998..One must develop a representation of the body, and this representation must be continuously modified by expectations (feedforward) and knowledge of results (feedback)...- Cognitive and vestibulo-proprioceptive components of spatial ability in Parkinson's diseaseG P Crucian
Department of Neurology, College of Medicine, University of Florida Health Science Center, FL, USA
Neuropsychologia 38:757-67. 2000..These findings suggest the visual-spatial difficulties seen in PD are related to executive dysfunction that is associated with a disruption of the frontal-basal ganglionic and frontal-parietal systems... - Right-left confusion in Gerstmann's syndrome: a model of body centered spatial orientationM Gold
Department of Neurology, University of Florida College of Medicine, Gainesville, USA
Cortex 31:267-83. 1995..Defective horizontal mapping can account for the other components of Gerstmann's syndrome because they all share a common dependency on relative horizontal positioning... - Creativity in Parkinson's disease as a function of right versus left hemibody onsetV Drago
University of Florida, Department of Neurology, and Center for Neuropsychological Studies, Gainesville, FL 32610 0236, USA
J Neurol Sci 276:179-83. 2009.... - The effect of semantic and emotional context on written recall for verbal language in high functioning adults with autism spectrum disorderD Q Beversdorf
Ohio State University Medical Centre, Department of Neurology, Columbus 43210, USA
J Neurol Neurosurg Psychiatry 65:685-92. 1998.... - Emotional and physiological responses to false feedbackG P Crucian
The Department of Neurology, University of Florida, Gainesville 32610 0236, USA
Cortex 36:623-47. 2000.... - Limb and hemispatial hypometriaK J Meador
Department of Neurology, Medical College of Georgia, Augusta 30912 3280, USA
J Int Neuropsychol Soc 6:71-5. 2000..No effect was found for direction of sensory input. The results suggest that the directional hypometria is predominantly produced by hemispatial output deficits... - Emotional indifference in Alzheimer's diseaseV Drago
Department of Neurology, Center for Neuropsychological Studies, University of Florida College of Medicine, Gainesville, Florida, USA
J Neuropsychiatry Clin Neurosci 22:236-42. 2010..These results might have been induced by impaired picture comprehension or a reduction of emotional experiences induced by degeneration of the limbic-cortical-reticular networks... - Increased discrimination of "false memories" in autism spectrum disorderD Q Beversdorf
Department of Neurology, Ohio State University Medical Center, 1654 Upham Drive, Columbus, OH 43210, USA
Proc Natl Acad Sci U S A 97:8734-7. 2000..Research directed at defining the range of tasks performed superiorly by high-functioning individuals with ASD will be important for optimal vocational rehabilitation... - Attentional grasp in far extrapersonal space after thalamic infarctionA M Barrett
Department of Neurology, University of Florida College of Medicine, Florida, USA
Neuropsychologia 38:778-84. 2000..Our results suggest that frontal-thalamic systems regulating visual attention may be disrupted by thalamic infarction. Such damage may produce an attentional grasp specific to far extrapersonal space... - Ipsilateral neglect: reversal of bias or exaggerated cross-over phenomenon?J C Adair
Department of Neurology, University of New Mexico Health Sciences Center, USA
Cortex 34:147-53. 1998..82), extending outside the CI for both controls and CN patients. The results suggest that the anomalous leftward misbisection with IN is associated with an exaggerated cross-over point and not simply reversal of spatial bias... - Emotional conversations in Parkinson's diseaseG P Crucian
Department of Neurology, University of Florida, Gainesville 32610, USA
Neurology 56:159-65. 2001..To learn how PD influences verbal description of emotional events... - Developmental stuttering and Parkinson's disease: the effects of levodopa treatmentJ M Anderson
Department of Neurology, University of Florida College of Medicine, Veterans Administration Medical Center, Gainesville, Florida, USA
J Neurol Neurosurg Psychiatry 66:776-8. 1999..When compared with the "off" periods, during the "on"' periods he demonstrated an increase of speech dysfluencies. These findings lend support to the dopamine hypothesis of developmental stuttering... - Artistic creativity and DBS: a case reportV Drago
Department of Neurology, University of Florida, College of Medicine, Gainesville, FL 32610 0236, USA
J Neurol Sci 276:138-42. 2009..An artist reported changes in her artistic creativity and art appreciation when treated with left DBS. We sought to study her artistic productions and her appreciation of art while both "on" and "off" left DBS... - The role of visual imagery in spellingJ E Shuren
Department of Neurology, University of Cincinnati Medical Center, Ohio, USA
Brain Lang 52:365-72. 1996..We conclude that visual imagery is not necessary to either spell or recognize orally spelled words... - Dissociation of neglect subtypes with transcranial magnetic stimulationG A Ghacibeh
Department of Neurology, University of Florida, Gainesville, FL, USA
Neurology 69:1122-7. 2007..To identify two forms of hemispatial neglect, attentional and intentional, in healthy volunteers using frontal and parietal repetitive transcranial magnetic stimulation (rTMS)... - Cortical and subcortical contributions to ideomotor apraxia: analysis of task demands and error typesB Hanna-Pladdy
Department of Neurology, University of Florida, Gainesville 32610 0236, USA
Brain 124:2513-27. 2001..The different profiles of praxis deficits associated with cortical and subcortical lesions, suggests that these structures may have different roles in praxis... - Extinction, working memory, and line bisection in spatial neglectA R Riestra
Department of Neurology, University of Florida College of Medicine, and Malcolm Randall Veterans Affairs Medical Center, Gainesville, FL 32610, USA
Neurology 57:147-9. 2001..In the segments task, subjects compared the length of the segments. Accuracy was greater with the sequential presentation of line segments, suggesting that an extinction-like phenomenon plays a role in line bisection bias... - Conduction aphasia and the arcuate fasciculus: A reexamination of the Wernicke-Geschwind modelJ M Anderson
Department of Neurology, University of Florida, Gainesville, USA
Brain Lang 70:1-12. 1999..These findings suggest that cortical dysfunction alone may induce conduction aphasia... - A test of the mechanisms of sensory extinction to simultaneous stimulationB M Kluger
Department of Neurology, University of Florida College of Medicine, Box 100236, Gainesville, FL 32610-0236, USA
Neurology 70:1644-5. 2008 - Bilateral restless legs affecting a phantom limb, treated with dopamine agonistsF M Skidmore
Department of Neurology, University of Florida College of Medicine, Gainesville, FL 32610 0236, USA
J Neurol Neurosurg Psychiatry 80:569-70. 2009..The pathophysiology of RLS is not completely known, especially the role of afferent feedback. An individual with a below the knee amputation who developed restless legs in his real and phantom limbs is reported... - Predicting hand preference with performance on motor tasksW J Triggs
Department of Neurology, University of Florida, Gainesville 32610 0236, USA
Cortex 36:679-89. 2000..These findings indicate that hand preference and asymmetries in motor proficiency are strongly related, but suggest that preference and proficiency for different aspects of motor performance may be independently lateralized... - On-line anosognosia: unawareness for chorea in real time but not on videotape delayJ I Shenker
Department of Neurology, University of Virginia, Charlottesville, VA 22908 0394, USA
Neurology 63:159-60. 2004..The authors report a man without sensory deficits who was unaware of choreiform movements, except on videotape delay. The authors believe that a feed-forward mechanism underlies his "on-line" unawareness... - Aceruloplasminaemia with progressive atrophy without brain iron overload: treatment with oral chelationF M Skidmore
University of Florida School of Medicine, North Florida South Georgia VA Medical Center, McKnight Brain Institute at UF, 100 S Newell Drive, Room L3 100, PO Box 100236, Gainesville, FL 32610 0236, USA
J Neurol Neurosurg Psychiatry 79:467-70. 2008..In previously reported cases, individuals with the disorder were noted to have evidence of iron accumulation in the brain. Oral chelating agents have not been used in neurological diseases of iron metabolism... - The Gerstmann syndrome in Alzheimer's diseaseE M Wingard
Division of Neurology, Department of Medicine, University of Massachusetts, USA
J Neurol Neurosurg Psychiatry 72:403-5. 2002.... - What's inside the art? The influence of frontotemporal dementia in art productionV Drago
Department of Neurology, College of Medicine, University of Florida and Department of Veteran Affairs, Malcolm Randall Medical Center, Gainesville, FL 32610 0236, USA
Neurology 67:1285-7. 2006..There was a reduction of closure (completeness of the painting), possibly induced by impersistence and a decrease in evocative impact that might be explained by frontal and anterotemporal-limbic dysfunction... - Attentional distractibility by optokinetic stimulation in Alzheimer diseaseE J Kim
Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon Dong, Kangnam Gu, Seoul, Republic of Korea
Neurology 69:1105-12. 2007..The goal of this study was to learn whether optokinetic stimulation (OKS) would perturb the balanced attentional deficits of AD patients and alter their spatial allocation of attention... - Abnormal emotional word ratings in Parkinson's diseaseA Hillier
Department of Psychology, University of Massachusetts, Lowell, USA
Neurocase 13:81-5. 2007..These blunted emotion ratings suggest that patients with PD have a degradation of their emotional conceptual-semantic system... - Limb-kinetic apraxia in Parkinson diseaseK Quencer
Department of Neurology, University of Florida College of Medicine, Center for Neuropsychological Studies, Gainesville, FL 32610, USA
Neurology 68:150-1. 2007..There were no group differences in FT, a measure of bradykinesia-rigidity, but CR rotation was impaired in PD. Thus, LKA, not related to bradykinesia-rigidity, is associated with PD... - Deafferentation-disconnection neglect induced by posterior cerebral artery infarctionK C Park
Department of Neurology, Kyung Hee University, School of Medicine, Korea
Neurology 66:56-61. 2006.... - Subcortical vascular dementia: integrating neuropsychological and neuroradiologic dataC C Price
Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA
Neurology 65:376-82. 2005.... - Just thinking about targets can aggravate neglect on cancellation testsM S Mennemeier
Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham, Birmingham, AL, USA
Neurocase 10:29-38. 2004..An important characteristic of the algorithm used in this study is that it appeared to activate the intact left cerebral hemisphere... - A rodent model for investigating the neurobiology of contralateral neglectR L Reep
Department of Physiological Sciences and McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA
Cogn Behav Neurol 17:191-4. 2004..This model has helped reveal the pathophysiology of neglect, has suggested a crucial role of the striatum in recovery from neglect, and is being used to investigate potential therapeutic approaches... - The Character-line Bisection Task: a new test for hemispatial neglectB H Lee
Department of Neurology, Samsung Medical Center, Sungkyunkwan University, 50 Ilwon-dong Kangnam-ku, Seoul 135-710, Republic of Korea
Neuropsychologia 42:1715-24. 2004..9, 87.3%) of the six tests. Thus, the CLBTs demonstrated higher sensitivities than the other commonly used neglect tests and these new tests can be useful for the detection and quantification of unilateral neglect... - Ecological implications of ideomotor apraxia: evidence from physical activities of daily livingB Hanna-Pladdy
Department of Cognitive Neurology and Alzheimer s Disease Center, and Psychiatry and Behavioral Sciences, Northwestern University Medical School, Chicago, IL 60611, USA
Neurology 60:487-90. 2003..To learn if ideomotor apraxia (IMA) adversely influences skilled acts in the environment and interferes with independent functioning after stroke... - Line quadrisection errors in normal subjectsY Son
Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Cortex 37:665-70. 2001.... - Contralesional directional hypermetria associated with line bisection-specific ipsilesional neglectS H Choi
Department of Neurology, College of Medicine, Inha University, Incheon, South Korea
Neuropsychologia 39:1177-87. 2001..These results suggest that IN is induced by a directional hypermetria resulting from disruption of the motor-intentional system... - Influence of final search direction on tactile line bisection in normal subjectsM J Baek
Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
Neurology 58:1833-8. 2002..CONCLUSION: Future research is needed to understand the mechanism of the overshoot phenomenon in tactile bisection by normal subjects and how the overshoot phenomenon influences patients with neglect...