Research Topics
| K K ZakzanisSummaryAffiliation: York University Country: Canada Publications
| Collaborators |
Detail Information
Publications
The subcortical dementia of Huntington's diseaseK K Zakzanis
Department of Psychology, York University, Baycrest Centre for Geriatric Care, Toronto, Ontario, Canada
J Clin Exp Neuropsychol 20:565-78. 1998..A rank-order list of specific neuropsychological tasks and test variables in order of sensitivity to HD is also provided to aid in the interpretation of the quantitative results...
Neuropsychological correlates of positive vs. negative schizophrenic symptomatologyK K Zakzanis
York University, Department of Psychology, Ontario, Canada
Schizophr Res 29:227-33. 1998..negative dichotomy. The results further the hypothesis that schizophrenia is not a single disease entity...
Brain is related to behavior (p<.05)K K Zakzanis
Department of Psychology, York University, Toronto, Ontario, Canada
J Clin Exp Neuropsychol 20:419-27. 1998..It is recommended on the basis of this review that the consumer of neuropsychological reports will be better served if due consideration is given to the magnitude of effect in brain-behavior statistical analyses...
Structural and functional meta-analytic evidence for fronto-subcortical system deficit in progressive supranuclear palsyK K Zakzanis
York University, Toronto, Canada
Brain Cogn 38:283-96. 1998..We conclude that although neuropsychological measures may be most sensitive to deficits in PSP, they are also less specific and valid indicators of fronto-subcortical brain system integrity...
Quantitative evidence for neuroanatomic and neuropsychological markers in dementia of the Alzheimer's typeK K Zakzanis
York University, Department of Psychology, Toronto, Canada
J Clin Exp Neuropsychol 20:259-69. 1998....
Dopamine D2 densities and the schizophrenic brainK K Zakzanis
Department of Psychology, York University, Toronto, Ont, Canada
Schizophr Res 32:201-6. 1998..Based on the findings, it is argued that D2 density receptor increases in patients with schizophrenia, although a reliable finding in many patients (i.e., approximately 70%), is not a specific or consistent marker for schizophrenia...
Prediction of longitudinal functional outcomes in schizophrenia: the impact of baseline motivational deficitsG Foussias
Centre for Addiction and Mental Health, and Department of Psychiatry, University of Toronto, 250 College St, Toronto, Ontario, Canada M5T 1R8
Schizophr Res 132:24-7. 2011..These findings further suggest a fundamental role for motivational deficits in predicting functional outcomes in schizophrenia...
Neurocognitive deficit in schizophrenia: a quantitative review of the evidenceR W Heinrichs
Department of Psychology, York University, Toronto, Ontario, Canada
Neuropsychology 12:426-45. 1998..The results indicate that schizophrenia is characterized by a broadly based cognitive impairment, with varying degrees of deficit in all ability domains measured by standard clinical tests...
A neuropsychological comparison of demented and nondemented patients with Parkinson's diseaseK K Zakzanis
Department of Psychology, York University, Toronto, Canada
Appl Neuropsychol 6:129-46. 1999..That is, as the duration of the disease endures, it appears that performance on tasks of delayed recall deteriorates first, followed by performance on measures of manual dexterity, cognitive flexibility, and abstraction...
Motivational deficits as the central link to functioning in schizophrenia: a pilot studyG Foussias
Department of Psychiatry, University of Toronto, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
Schizophr Res 115:333-7. 2009..This suggests that motivational deficits are the central link between negative symptoms and functional impairment in schizophrenia...
Schizophrenia and the frontal brain: a quantitative reviewK K Zakzanis
Department of Psychology, University of Toronto, Ontario, Canada
J Int Neuropsychol Soc 5:556-66. 1999..Overall, the findings are hard to incorporate within single disease models that propose major involvement of the frontal system, at least at the degree of resolution obtained with current imaging technology...
The neuropsychological signature of primary progressive aphasiaK K Zakzanis
Department of Psychology, University of Toronto, Toronto, Canada
Brain Lang 70:70-85. 1999....
Component analysis of verbal fluency in patients with schizophreniaK K Zakzanis
Division of Life Sciences Psychology, University of Toronto at Scarborough, Ontario, Canada
Neuropsychiatry Neuropsychol Behav Neurol 13:239-45. 2000..Clustering and-switching components of phonemic fluency performance were compared in patients with schizophrenia and healthy normal controls...
