• Torres, Ivan

    Titles

    Affiliate Investigator, BC Children's Hospital
    Clinical Professor, Department of Psychiatry, Faculty of Medicine, University of British Columbia

    Degrees / Designations
    Primary Area of Research
    Brain, Behaviour & Development
    Secondary Area(s) of Research
    Phone
    604-524-7687
    Fax
    Lab Phone
    Mailing Address

    2C7-2255 Wesbrook Mall
    University of British Columbia
    Vancouver, V6T 2A1

    Affiliate Websites
    Research Areas
    • Bipolar disorder
    • Schizophrenia
    • First episode mania and psychosis
    • Metacognition
    • Neuropsychology of affective and psychotic disorders
    Summary

    My research interests involve investigation of cognitive and other neurobehavioral impairments in mental disorders including bipolar disorder and schizophrenia. Specific areas of inquiry include the study of deficits in executive, memory, and self-regulatory or metacognitive functions in these disorders. I am also interested in investigating longitudinal changes in neuropsychological functioning early in the course of bipolar disorder, and determining the extent to which identified cognitive deficits predict functional outcomes in daily life. A final area of interest involves the study of the association between specific psychiatric symptoms and underlying core cognitive impairments in psychotic and affective disorders.

    Current Projects
    Selected Publications

    Chakrabarty, T., Kozicky, J.M., Torres I.J., Lam, R.W., Yatham, L.N.  (in press). Verbal memory impairment in bipolar I disorder following a first manic episode: relationship with frontal and medial temporal morphology. World Journal of Biological Psychiatry.

    Torres, I.J., Kozicky, J., Popuri, S., Bond, D.G., Honer, W.J., Yatham, L.N.  (2014). 12-month longitudinal cognitive functioning in patients recently diagnosed with bipolar disorder.  Bipolar Disorders, 16(2), 159-171. PMID: 24636366

    Bogod, N.M., Sniden, M., Woo, C., Defreitas, V.G., Torres, I.J., Howard, A.K., Ilcewicz-Klimek, M.I., Honey, C.R., Yatham, L.N., Lam, R.W.  (2014). Long-Term Neuropsychological Safety of Subgenual Cingulate Gyrus Deep Brain Stimulation for Treatment-Resistant Depression.  Journal of Neuropsychiatry and Clinical Neurosciences, 26(2), 126-133. PMID: 24763760

    Bond, D.J., Ha, T.H., Lang, D. J., Su, W., Torres, I.J., Honer, W. G., Lam, R.W., & Yatham, L.N. (2014). Body mass index-related regional gray and white matter reductions in first-episode mania patients.  Biological Psychiatry, 76(2), 138-145. PMID: 24120119

    Kesavan, M., Torres, I.J., Silveira, L.E., Kozicky, J., Bucker, J., Fernando, N., Yatham, L.N. (2014). Impact of depressive episodes on cognitive deficits in early bipolar disorder: data from the Systematic Treatment Optimization Programme for Early Mania (STOP-EM). British Journal of Psychiatry, 205(1), 36-43. PMID: 24764544

    Kozicky, J.M., Ha, T.H., Torres, I.J., Bond, D.J., Honer, W.G., Lam, R.W., & Yatham, L.N. (2013). Relationship between frontostriatal morphology and executive function deficits in bipolar I disorder following a first manic episode: Data from the Systematic Treatment Optimization Program for Early Mania (STOP-EM).  Bipolar Disorders, 15(6), 657-68. PMID: 23919287

    Kozicky, J.M, Torres, I.J., Bond, D.J., Lam, R. W., Yatham, L.N. (2012). Comparison of neuropsychological effects of adjunctive risperidone or quetiapine in euthymic patients with bipolar I disorder.  International Clinical Psychopharmacology. 27 (2), 91-99. PMID: 22124206

    Bond, D. J., Lang, D. L., Noronha, M. M., Kunz, M., Torres, I. J., Su, W., Honer, W. G., Lam, R. W., Yatham, L. N.  (2011). The Association of Elevated Body Mass Index with Reduced Brain Volumes in First-Episode Mania.  Biological Psychiatry, 70(4), 381-387. PMID: 21497795

    Torres, I. J., DeFreitas, C. M.., DeFreitas, V. G., Bond, D. J., Kunz, M., Honer, W. G., Lam, R. W., & Yatham, L. N. (2011). Relationship Between Cognitive Functioning and Six Month Clinical and Functional Outcome in Patients with First Episode Bipolar I Disorder.  Psychological Medicine, 41, 971-982. PMID: 20810001

    Torres, I. J., DeFreitas, V. G., DeFreitas, C. M., Kauer-Sant’Anna, M., Bond, D. J., Honer, W. G., Lam, R. W., & Yatham, L. N. (2010). Neurocognitive Functioning in First Manic Episode Bipolar Disorder.  Journal of Clinical Psychiatry, 71(9), 1234-1242. PMID: 20361907

    Goldman, M. B., Wang, L., Wachi, C., Daudi, S., Csernansky, J., Marlow-O’Connor, M., Beenken, B., Keedy, S., Torres, I. (2010). Structural Pathology Underlying Neuroendocrine Dysfunction in Schizophrenia.  Behavioural Brain Research, 218, 106-113. PMID: 21093493

    Torres, I. J. & Malhi, G. S. (2010). Neurocognition in Bipolar Disorder. In L.N. Yatham and M. Maj, (Eds.). Bipolar Disorder: Clinical and Neurobiological Foundations. London, UK: John Wiley and Sons.

    Bond, D. J., Kunz, M., Torres, I. J., Lam, R., & Yatham, L. N. (2010). The Association of Weight Gain with Mood Symptoms and Functional Outcomes Following a First Manic Episode: Prospective 12-Month Data from the Systematic Treatment Optimization Program for Early Mania (STOP-EM). Bipolar Disorders, 12(6), 616-626. PMID: 20868460

    Goldman, M. B., Wang, L., Wachi, C., Daudi, S., Csernansky, J., Marlow-O'Connor, M., Beenken, B., Keedy, S., & Torres, I. (2010). Structural Pathology Underlying Neuroendocrine Dysfunction in Schizophrenia. Behavioural Brain Research, 218, 106-113. PMID: 21093493

    Torres, I. J., DeFreitas, V. G., DeFreitas, C. M., Kauer-Sant'Anna, M., Bond, D. J., Honer, W. G., Lam, R.W., & Yatham, L. N. (2010). Neurocognitive functioning in patients with bipolar I disorder recently recovered from a first manic episode. The Journal of Clinical Psychiatry, 71(9), 1234-1242. PMID: 20361907

    Yatham, L. N., Torres, I. J., Malhi, G. S., Frangou, S., Glahn, D. C., Bearden, C. E., Martinez-Aran, A., Dittman, S., Goldberg, J., Ozerdam, A., Aydemir, O., Chengappa, R., & Burdick, K. E. (2010). International Society for Bipolar Disorders -Battery for Assessment of Neurocognition (ISBD-BANC). Bipolar Disorders, 12(4), 351-363. PMID: 20636632

    Buchy, L., Torres, I.J., Liddle, P.F., & Woodward, T.S. (2009). Symptomatic Determinants of Insight in Schizophrenia Spectrum Disorders. Comprehensive Psychiatry, 50, 578-583. PMID: 19840598

    Torres, I. J., Keedy, S., Marlow-O'Connor, M., Beenken, B., & Goldman, M. B. (2009). Neuropsychological impairment in patients with schizophrenia and evidence of hyponatremia and polydipsia. Neuropsychology, 23, 307-314. PMID: 19413445

    Defretias, C. M., Dunaway, L. A., & Torres, I. J. (2009). Preferential semantic fluency impairment is related to hallucinations, but not formal thought disorder. Schizophrenia Research, 107, 307-312. PMID: 18829264

    Yatham, L.N., Santa-Anna, M.K., Bond, D.J., Lam, R.W., & Torres, I.J. (2009). Course and Outcome after the first manic episode in patients with Bipolar Disorder: Prospective 12-month data from the Systematic Treatment Optimization Program for Early Mania (STOP-EM) Project. Canadian Journal of Psychiatry, 54(2), 105-112. PMID: 19254441

    Torres, I. J., DeFreitas, C. M., & Yatham, L. N. (2008). Cognition and functional outcome in bipolar disorder. In Joseph, F. Goldberg, and Katherine, E., Burdick, (Eds.), Cognitive Dysfunction in Bipolar Disorder: A Guide for Clinicians. Washington, DC: American Psychiatric Publishing, Inc.
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