Tom A Schweizer

Summary

Affiliation: St. Michael's Hospital
Country: Canada

Publications

  1. doi request reprint Lateralized cerebellar contributions to word generation: a phonemic and semantic fluency study
    Tom A Schweizer
    Division of Neurosurgery, St Michael s Hospital, 30 Bond Street, Toronto, Ontario, Canada
    Behav Neurol 23:31-7. 2010
  2. doi request reprint Bilingualism as a contributor to cognitive reserve: evidence from brain atrophy in Alzheimer's disease
    Tom A Schweizer
    Keenan Research Centre of the Li Ka Shing Knowledge Institute at St Michael s Hospital, Toronto, Canada
    Cortex 48:991-6. 2012
  3. doi request reprint Mini-Mental State Examination versus Montreal Cognitive Assessment: rapid assessment tools for cognitive and functional outcome after aneurysmal subarachnoid hemorrhage
    Tom A Schweizer
    Division of Neurosurgery, St Michael s Hospital, Toronto, ON, Canada
    J Neurol Sci 316:137-40. 2012
  4. doi request reprint Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance
    Tom A Schweizer
    Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael s Hospital, Toronto, Ontario, Canada
    Exp Clin Psychopharmacol 16:240-50. 2008
  5. doi request reprint Impact of global cerebral atrophy on clinical outcome after subarachnoid hemorrhage
    Alan K H Tam
    Division of Neurosurgery, St Michael s Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St Michael s Hospital, Toronto, Ontario, Canada
    J Neurosurg 119:198-206. 2013
  6. doi request reprint SAHIT Investigators-on the Outcome of Some Subarachnoid Hemorrhage Clinical Trials
    R Loch MacDonald
    St Michael s Hospital, University of Toronto, Toronto, ON, Canada
    Transl Stroke Res 4:286-96. 2013
  7. doi request reprint Subarachnoid Hemorrhage International Trialists data repository (SAHIT)
    R Loch MacDonald
    St Michael s Hospital, University of Toronto, Toronto, Ontario, Canada
    World Neurosurg 79:418-22. 2013
  8. ncbi request reprint Neuropsychological profile of acute alcohol intoxication during ascending and descending blood alcohol concentrations
    Tom A Schweizer
    The Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada
    Neuropsychopharmacology 31:1301-9. 2006
  9. ncbi request reprint Rehabilitation of executive functioning after focal damage to the cerebellum
    Tom A Schweizer
    Rotman Research Institute, Baycrest, Toronto, ON, Canada
    Neurorehabil Neural Repair 22:72-7. 2008
  10. doi request reprint Determining the impact of dementia on antidepressant treatment response in older adults
    Corinne E Fischer
    Department of Psychiatry affiliated with the Keenan Research Centre of the Li Ka Shing Knowledge Research Institute, St Michael s Hospital, Toronto, Ontario, Canada
    J Neuropsychiatry Clin Neurosci 23:358-61. 2011

Collaborators

Detail Information

Publications39

  1. doi request reprint Lateralized cerebellar contributions to word generation: a phonemic and semantic fluency study
    Tom A Schweizer
    Division of Neurosurgery, St Michael s Hospital, 30 Bond Street, Toronto, Ontario, Canada
    Behav Neurol 23:31-7. 2010
    ..This supports the hypotheses of a prefrontal-lateral cerebellar system for modulation of attention/executive or strategy demanding tasks...
  2. doi request reprint Bilingualism as a contributor to cognitive reserve: evidence from brain atrophy in Alzheimer's disease
    Tom A Schweizer
    Keenan Research Centre of the Li Ka Shing Knowledge Institute at St Michael s Hospital, Toronto, Canada
    Cortex 48:991-6. 2012
    ..Bilingualism appears to contribute to increased CR, thereby delaying the onset of AD and requiring the presence of greater amounts of neuropathology before the disease is manifest...
  3. doi request reprint Mini-Mental State Examination versus Montreal Cognitive Assessment: rapid assessment tools for cognitive and functional outcome after aneurysmal subarachnoid hemorrhage
    Tom A Schweizer
    Division of Neurosurgery, St Michael s Hospital, Toronto, ON, Canada
    J Neurol Sci 316:137-40. 2012
    ..The aim of the present study was to determine how MoCA and MMSE scores relate to neurocognitive impairment and return to work after aSAH...
  4. doi request reprint Alcohol-impaired speed and accuracy of cognitive functions: a review of acute tolerance and recovery of cognitive performance
    Tom A Schweizer
    Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael s Hospital, Toronto, Ontario, Canada
    Exp Clin Psychopharmacol 16:240-50. 2008
    ..The occurrence of alcohol-induced protracted cognitive errors long after speed returned to normal is identified as a potential threat to the safety of social drinkers that requires urgent investigation...
  5. doi request reprint Impact of global cerebral atrophy on clinical outcome after subarachnoid hemorrhage
    Alan K H Tam
    Division of Neurosurgery, St Michael s Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St Michael s Hospital, Toronto, Ontario, Canada
    J Neurosurg 119:198-206. 2013
    ..Few studies have compared global atrophy in SAH with outcome. The authors examined the relationship between global brain atrophy, clinical factors, and outcome after SAH...
  6. doi request reprint SAHIT Investigators-on the Outcome of Some Subarachnoid Hemorrhage Clinical Trials
    R Loch MacDonald
    St Michael s Hospital, University of Toronto, Toronto, ON, Canada
    Transl Stroke Res 4:286-96. 2013
    ..Key issues moving forward will be to use common definitions (common data elements), outcomes analysis, and to prioritize research questions, among others. ..
  7. doi request reprint Subarachnoid Hemorrhage International Trialists data repository (SAHIT)
    R Loch MacDonald
    St Michael s Hospital, University of Toronto, Toronto, Ontario, Canada
    World Neurosurg 79:418-22. 2013
    ..We welcome collaboration with other investigators...
  8. ncbi request reprint Neuropsychological profile of acute alcohol intoxication during ascending and descending blood alcohol concentrations
    Tom A Schweizer
    The Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON, Canada
    Neuropsychopharmacology 31:1301-9. 2006
    ....
  9. ncbi request reprint Rehabilitation of executive functioning after focal damage to the cerebellum
    Tom A Schweizer
    Rotman Research Institute, Baycrest, Toronto, ON, Canada
    Neurorehabil Neural Repair 22:72-7. 2008
    ..This is the first report on the rehabilitation of impaired executive functioning following focal damage to the cerebellum and in the presence of intact frontal cortex...
  10. doi request reprint Determining the impact of dementia on antidepressant treatment response in older adults
    Corinne E Fischer
    Department of Psychiatry affiliated with the Keenan Research Centre of the Li Ka Shing Knowledge Research Institute, St Michael s Hospital, Toronto, Ontario, Canada
    J Neuropsychiatry Clin Neurosci 23:358-61. 2011
    ..Depressed elderly patients with dementia may improve on antidepressant treatment, although treatment response may be less robust than in depressed patients without dementia...
  11. doi request reprint Cognitive and functional outcome after aneurysmal subarachnoid hemorrhage
    Timour Al-Khindi
    University of Toronto, Toronto, Ontario, Canada
    Stroke 41:e519-36. 2010
    ..The acute treatment of aSAH is well documented but less is known about the long-term effects of aSAH on cognition and day-to-day functioning...
  12. doi request reprint Delusions increase functional impairment in Alzheimer's disease
    Corinne E Fischer
    Mental Health Service, St Michael s Hospital, Toronto, Ont, Canada
    Dement Geriatr Cogn Disord 33:393-9. 2012
    ..Delusions in Alzheimer's disease (AD) may be associated with functional impairment. No studies to date have used functional instruments sensitive to changes in frontal executive function, possibly underestimating the impact...
  13. ncbi request reprint Fast and efficient visuotemporal attention requires the cerebellum
    Tom A Schweizer
    Rotman Research Institute, Baycrest, 3560 Bathurst Street, Toronto, Ont M6A 2E1, Canada
    Neuropsychologia 45:3068-74. 2007
    ..These data provide evidence implicating the cerebellum as a critical node in the neuroanatomical network underlying visuotemporal attention and provide further evidence for the role of the cerebellum in non-motor behaviors...
  14. doi request reprint Neuroimaging of delusions in Alzheimer's disease
    Zahinoor Ismail
    Centre for Addiction and Mental Health, Geriatric Mental Health Program, Toronto, Ontario, Canada
    Psychiatry Res 202:89-95. 2012
    ..Delusional subtype is an important factor in understanding the neurobiological underpinnings of delusions in dementia. We also discuss methodological issues related to neuroimaging of delusions in AD...
  15. doi request reprint Free recall memory performance after aneurysmal subarachnoid hemorrhage
    Signy Sheldon
    Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael s Hospital, Toronto, Canada
    J Int Neuropsychol Soc 18:334-42. 2012
    ..Such findings may help direct future cognitive-therapeutic programs...
  16. doi request reprint The cerebellum and its role in word generation: a cTBS study
    Carla P Arasanz
    Department of Kinesiology, University of Waterloo, ON, Canada
    Cortex 48:718-24. 2012
    ..Our findings support the general hypothesis of cerebellar involvement in executive control through connections to the frontal cortex...
  17. pmc Rehabilitation of executive functioning in patients with frontal lobe brain damage with goal management training
    Brian Levine
    Rotman Research Institute, Baycrest Centre Toronto, ON, Canada
    Front Hum Neurosci 5:9. 2011
    ..Overall, these data support the efficacy of GMT in the rehabilitation of executive functioning deficits...
  18. ncbi request reprint The stage-specific effect of alcohol on human information processing
    Tom A Schweizer
    Department of Psychology, University of Waterloo, Waterloo, ON, Canada
    Psychopharmacology (Berl) 178:52-7. 2005
    ..This creates a bottleneck when the tasks are performed in close succession, but with longer delays task 2 is no longer affected by task 1...
  19. ncbi request reprint The cerebellum mediates conflict resolution
    Tom A Schweizer
    Rotman Research Institute, Baycrest, Toronto, Ontario, Canada
    J Cogn Neurosci 19:1974-82. 2007
    ..These results are the first demonstration of impaired conflict resolution following cerebellar lesions in the presence of an intact prefrontal cortex...
  20. ncbi request reprint The influence of visual and nonvisual attributes in visual object identification
    Tom A Schweizer
    The Rotman Research Institute, Baycrest Centre for Geriatric Care, 3560 Bathurst Street, Toronto, Ontario M6A 2E1, Canada
    J Int Neuropsychol Soc 12:176-83. 2006
    ..We conclude that the nonvisual aspects of meaning must be taken into consideration when assessing visual object identification impairments...
  21. doi request reprint Neurocognitive profiles in older adults with and without major depression
    Corinne Fischer
    St Michael s Hospital, Toronto, Ontario, Canada
    Int J Geriatr Psychiatry 23:851-6. 2008
    ..To delineate the differences between older persons with and without a diagnosis of major depression...
  22. doi request reprint Using fMRI virtual-reality technology to predict driving ability after brain damage: A preliminary report
    Yuwen Hung
    Neuroscience Research Program, Keenan Research Centre for Biomedical Science of St Michael s Hospital, 30 Bond Street, Toronto, Ontario M5B 1W8, Canada Electronic address
    Neurosci Lett 558:41-6. 2014
    ..New insights into neural mechanisms and brain plasticity regarding driving behaviour are discussed. Strategies in assessing and rehabilitating drivers with related neurological conditions are provided. ..
  23. doi request reprint Effect of socioeconomic status on inpatient mortality and use of postacute care after subarachnoid hemorrhage
    Blessing N R Jaja
    From the Keenan Research Centre, Li Ka Shing Knowledge Institute B N R J, G S, R N, T A S, K E T, R L M, Division of Neurology G S, Division of Neurosurgery B N R J, T A S, R L M, St Michael s Hospital, Toronto, ON, Canada Institute of Medical Science B N R J, G S, T A S, R L M, Dalla Lana School of Public Health R N, K E T, University of Toronto, Toronto, ON, Canada and Division of Neurosurgery D R, McMaster University, Hamilton, ON, Canada
    Stroke 44:2842-7. 2013
    ..This study investigated socioeconomic status-related differences in risk of inpatient mortality and use of institutional postacute care after subarachnoid hemorrhage in the United States and Canada...
  24. doi request reprint From the thalamus with love: A rare window into the locus of emotional synesthesia
    Tom A Schweizer
    From the Keenan Research Centre of the Li Ka Shing Knowledge Institute T A S, Z L, C E F, L F, St Michael s Hospital, Toronto Faculty of Medicine T A S, C E F, L F, University of Toronto, Canada Department of Neurology M P A, Harvard Medical School, Boston, MA Department of Psychology S D S, University of Winnipeg and Department of Medical Imaging S J G, Sunnybrook Research Institute, Toronto, Canada
    Neurology 81:509-10. 2013
    ..4) We report on the only known case of acquired emotional synesthesia after a focal thalamic lesion, providing a possible window into the neural substrate of this condition. ..
  25. doi request reprint Global cerebral atrophy after subarachnoid hemorrhage: a possible marker of acute brain injury and assessment of its impact on outcome
    Alan K H Tam
    Department of Medicine, McMaster University, Hamilton, ON, Canada
    Acta Neurochir Suppl 115:17-21. 2013
    ..Greater brain atrophy significantly correlated with poor outcome (modified Rankin scale), more severe neurological deficits on the National Institute of Health Stroke Scale (NIHSS), and poorer health status (EQ-5D)...
  26. doi request reprint "Blue is music to my ears": multimodal synesthesias after a thalamic stroke
    Luis Fornazzari
    Neurology and Psychiatry, St Michael s Hospital and University of Toronto, Toronto, Ontario, Canada
    Neurocase 18:318-22. 2012
    ..Moreover, the patient noted that even thinking about a sensory stimulus could trigger the experience of another sensory modality, a conceptual type of synesthesia...
  27. pmc Determining the association of medical co-morbidity with subjective and objective cognitive performance in an inner city memory disorders clinic: a retrospective chart review
    Corinne E Fischer
    Department of Psychiatry, St Michael s Hospital, Toronto, Ontario, Canada
    BMC Geriatr 10:89. 2010
    ....
  28. doi request reprint Neurobiology of delusions in Alzheimer's disease
    Zahinoor Ismail
    Centre for Addiction and Mental Health, Geriatric Mental Health Program, University of Toronto, 1001 Queen Street W, Toronto, Ontario, Canada
    Curr Psychiatry Rep 13:211-8. 2011
    ..Clearly distinguishing between these two syndromes is essential to making progress in the area of delusions in AD...
  29. doi request reprint Role of the cerebellum in the neurocognitive sequelae of treatment of tumours of the posterior fossa: an update
    David Cantelmi
    Division of Neurosurgery, St Michael s Hospital, Toronto, Ontario, Canada
    Lancet Oncol 9:569-76. 2008
    ..Recognition of the important cognitive contributions of the cerebellum might lead to improved cognitive outcome and quality of life for this patient population...
  30. doi request reprint Long-term consequences of subarachnoid hemorrhage: examining working memory
    Signy Sheldon
    Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, Canada
    J Neurol Sci 332:145-7. 2013
    ....
  31. doi request reprint Clinical prediction models for aneurysmal subarachnoid hemorrhage: a systematic review
    Blessing N R Jaja
    St Michael s Hospital, University of Toronto, Toronto, ON, Canada
    Neurocrit Care 18:143-53. 2013
    ..We evaluated the methodological validity of SAH prediction models and the relevance of the main predictors to identify potentially reliable models and to guide future attempts at model development...
  32. pmc Brain activity during driving with distraction: an immersive fMRI study
    Tom A Schweizer
    Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael s Hospital Toronto, ON, Canada Department of Surgery, Faculty of Medicine, Division of Neurosurgery, University of Toronto Toronto, ON, Canada Institute of Biomaterials and Biomedical Engineering, University of Toronto Toronto, ON, Canada
    Front Hum Neurosci 7:53. 2013
    ..The present findings offer important new insights into the scientific understanding of the neuro-cognitive mechanisms of driving behavior and lay down an important foundation for future clinical research...
  33. doi request reprint Methodology for functional MRI of simulated driving
    Karen Kan
    Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
    Med Phys 40:012301. 2013
    ..Functional magnetic resonance imaging (fMRI) of individuals using virtual reality driving simulators may provide an important research tool to assess driving safety, based on brain activity and behavior...
  34. doi request reprint Functional outcome in delusional Alzheimer disease patients. A systematic review
    Corinne E Fischer
    Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael s Hospital, Toronto, Ontario, Canada
    Dement Geriatr Cogn Disord 27:105-10. 2009
    ..In spite of the prevalence of delusions in Alzheimer's disease (AD) and their association with poor outcomes, there has been little study of the impact of delusions on real-world functioning...
  35. pmc Isolating a cerebellar contribution to rapid visual attention using transcranial magnetic stimulation
    Carla P Arasanz
    Department of Kinesiology, University of Waterloo Waterloo, ON, Canada
    Front Behav Neurosci 6:55. 2012
    ..05). No difference in T2 detection was found over long delays. The results provide further support for a cerebellar contribution to an integrated neural network recruited during temporally demanding attention-based tasks...
  36. ncbi request reprint Fast, but error-prone, responses during acute alcohol intoxication: effects of stimulus-response mapping complexity
    Tom A Schweizer
    Department of Psychology, University of Waterloo, Waterloo, Ontario, Canada
    Alcohol Clin Exp Res 28:643-9. 2004
    ..This study used a psychological refractory period paradigm to investigate the effect of alcohol on the central, cognitive stage of information processing when task complexity is manipulated by altering stimulus-response compatibility...
  37. doi request reprint Evaluating the affective component of the cerebellar cognitive affective syndrome
    Uri Wolf
    Department of Psychiatry, University of Toronto, Toronto, Canada
    J Neuropsychiatry Clin Neurosci 21:245-53. 2009
    ....
  38. pmc Psychotropic medication use in canadian long-term care patients referred for psychogeriatric consultation
    Corinne E Fischer
    Mental Health Service, St Michael s Hospital, Toronto Keenan Research Centre, Li Ka Shing Knowledge Institute, St Michael s Hospital, Toronto Faculty of Medicine, University of Toronto, Toronto
    Can Geriatr J 14:73-7. 2011
    ..The purpose of this study was to examine psychotropic medication use by LTCH patients in a metropolitan Canadian city referred to outreach teams for psychiatric assessment...
  39. doi request reprint Functional MRI-compatible laparoscopic surgery training simulator
    Parisa Bahrami
    Institute of Biomaterials and Biomedical Engineering, University of Toronto, and Keenan Research Centre of the Li Ka Shing Knowledge Institute at St Michael s Hospital, Toronto, Ontario, Canada
    Magn Reson Med 65:873-81. 2011
    ..To our knowledge, this is the first study that directly looks at the functional MRI brain activation during complex surgical training tasks...