Research Topics
| M P AlexanderSummaryAffiliation: Harvard University Country: USA Publications
| Collaborators
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Detail Information
Publications
California Verbal Learning Test: performance by patients with focal frontal and non-frontal lesionsM P Alexander
Rotman Research Institute of Baycrest Centre for Geriatric Care, University of Toronto, Toronto, ON, Canada
Brain 126:1493-503. 2003..This study has demonstrated even finer differentiations within the frontal region than previously known...- Comparison of older people and patients with frontal lesions: evidence from world list learningD T Stuss
Rotman Research Institute of Baycrest Centre, Toronto, Ontario, Canada
Psychol Aging 11:387-95. 1996..These results add to the evidence that at least some of the decline in older people in tasks which measure executive or supervisory abilities is due to frontal system dysfunction... - The effects of focal anterior and posterior brain lesions on verbal fluencyD T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada
J Int Neuropsychol Soc 4:265-78. 1998..Task analysis and correlations with other measures revealed that different cognitive processes related to different brain regions underlie performance on verbal fluency tests... - Wisconsin Card Sorting Test performance in patients with focal frontal and posterior brain damage: effects of lesion location and test structure on separable cognitive processesD T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, University of Toronto 3560 Bathurst Street, Toronto, Canada
Neuropsychologia 38:388-402. 2000..Verbal instructions may provide a probe to improve diagnosis and prognosis, assessment of the potential efficacy of treatment, and the time frame of plasticity of specific cognitive operations... - The effects of focal and diffuse brain damage on strategy application: evidence from focal lesions, traumatic brain injury and normal agingB Levine
Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada
J Int Neuropsychol Soc 4:247-64. 1998..Overall, the results supported the use of unstructured tasks in the assessment of supervisory abilities... - Dissociation of attentional processes in patients with focal frontal and posterior lesionsD T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, University of Toronto, Ont, Canada
Neuropsychologia 37:1005-27. 1999..INT, NP, and IOR are mediated by different brain regions and their expression can be modulated by the complexity of the selection task... - Stroop performance in focal lesion patients: dissociation of processes and frontal lobe lesion locationD T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, University of Toronto, 3560 Bathurst Street, M6A 2E1, Ontario, Canada
Neuropsychologia 39:771-86. 2001..The role of the anterior cingulate cortex on performance of the Stroop task is likely related to task and patient context... - The frontal lobes are necessary for 'theory of mind'D T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, Canada
Brain 124:279-86. 2001..The former may require cognitive processes of the lateral and superior medial frontal regions, the latter affective connections of the ventral medial frontal with amygdala and other limbic regions... - The Trail Making Test: a study in focal lesion patientsD T Stuss
Rotman Research Institute, Baycrest Centre, 3560 Bathurst St, Toronto, Ontario M6A 2E1, Canada
Psychol Assess 13:230-9. 2001..Patients with damage in dorsolateral frontal areas were most impaired. Those with inferior medial damage to the frontal lobes were not significantly affected in TMT Part B performance... - Executive functions and the frontal lobes: a conceptual viewD T Stuss
Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, Ontario, Canada
Psychol Res 63:289-98. 2000.... - Regional frontal injuries cause distinct impairments in cognitive controlM P Alexander
Behavioral Neurology, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA, USA
Neurology 68:1515-23. 2007..Lesions of the frontal lobes may impair the capacity of patients to control otherwise intact cognitive operations in the face of ambiguous sensory input or conflicting possible responses... - Impaired concentration due to frontal lobe damage from two distinct lesion sitesM P Alexander
Department of Neurology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA
Neurology 65:572-9. 2005..Some form of impairment in attention is often asserted to cause the revealed deficits... - The neurological and cognitive sequelae of cardiac arrestC Lim
Behavioral Neurology Unit KS 2, Department of Neurology, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, USA
Neurology 63:1774-8. 2004..Although cardiac arrest (CA) is commonly cited as a cause of amnesia, patients referred to the authors' center with a diagnosis of "amnesia" after CA rarely have isolated memory deficits... - Clustering and switching on verbal fluency: the effects of focal frontal- and temporal-lobe lesionsA K Troyer
Rotman Research Institute of Baycrest Geriatric Centre, University of Toronto, Ontario, Canada
Neuropsychologia 36:499-504. 1998..The best indices for discriminating the patient groups, therefore, were phonemic-fluency switching (impaired only with frontal lesions) and semantic-fluency clustering (impaired only with temporal-lobe lesions)... - Impulsivity and risk-taking behavior in focal frontal lobe lesionsD Floden
Rotman Research Institute, Baycrest, Toronto, Ontario, Canada
Neuropsychologia 46:213-23. 2008..Reduced reaction to the negative consequences of one's actions may underlie this behavior pattern... - Age-related differences in movement representationS Hutchinson
Neuroimaging Laboratory, Department of Neurology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
Neuroimage 17:1720-8. 2002..This study has important implications for functional imaging experiments of neurological disorders in older subjects... - MEG analysis of "theory of mind" in emotional vignettes comprehensionR Ishii
Department of Psychiatry and Behavioral Science, Osaka University Graduate School of Medicine, Japan
Neurol Clin Neurophysiol 2004:28. 2004..Medial frontal lobe lesions of the right frontal lobe were reported to impair this ability. The aim of our study was to locate areas of the brain associated with the process of "theory of mind" in normal subjects... - Chronic akinetic mutism after mesencephalic-diencephalic infarction: remediated with dopaminergic medicationsM P Alexander
Memory Disorders Research Center, Boston University, Department of Neurology, Massachusetts, USA
Neurorehabil Neural Repair 15:151-6. 2001..The mechanism of abulia is more complex than simply a partial dopaminergic deficiency state and may persist even when AKM is treated and frontal cognitive functions are normal... 
Triangular backgrounds shift the bias of line bisection performance in hemispatial neglectM B Shulman
Department of Neurology, New York University Medical Center, New York, USA
J Neurol Neurosurg Psychiatry 72:68-72. 2002..This effect is strong enough to eliminate neglect on a bisection task. The mechanism of this effect is expressed through preattentive visual capacities...