Specific and generalized neuropsychological deficits: a comparison of patients with various first-episode psychosis presentations

Zanelli, J., Reichenberg, A., Morgan, K.D., Fearon, P., Kravariti, E., Dazzan, P., Morgan, C., Zanelli, C., Demjaha, A., Jones, P.B., Doody, G.A., Kapur, S. and Murray, R.M. 2010. Specific and generalized neuropsychological deficits: a comparison of patients with various first-episode psychosis presentations. American Journal of Psychiatry. 167 (1), pp. 78-85.

TitleSpecific and generalized neuropsychological deficits: a comparison of patients with various first-episode psychosis presentations
AuthorsZanelli, J., Reichenberg, A., Morgan, K.D., Fearon, P., Kravariti, E., Dazzan, P., Morgan, C., Zanelli, C., Demjaha, A., Jones, P.B., Doody, G.A., Kapur, S. and Murray, R.M.
Abstract

Overwhelming evidence suggests that compromised neuropsychological function is frequently observed in schizophrenia. Neurocognitive dysfunction has often been reported in other psychotic disorders, although there are inconsistencies in the literature. In the context of four distinct diagnostic groups, the authors compared neuropsychological performance among patients experiencing their first psychotic episode. Data were derived from a population-based, case-control study of patients with first-episode psychosis. A neuropsychological test battery was administered to patients with a diagnosis of schizophrenia (N=65), bipolar disorder or mania (N=37), depressive psychosis (N=39), or other psychotic disorders (N=46) following index presentation, as well as to healthy comparison subjects (N=177). The presence of specific and generalized cognitive deficits was examined. The schizophrenia group presented widespread neuropsychological impairments and performed significantly worse than healthy comparison subjects on most neuropsychological measures. Patients with other psychotic disorders and depressive psychosis also demonstrated widespread impairments. Deficits in patients with bipolar disorder or mania were less pervasive but evident in performance scores on verbal memory and fluency tests. Differences between the four patient groups and healthy comparison subjects and among the patient groups were attenuated after controlling for differences in general cognitive ability (IQ). Early in their course, cognitive deficits are present in all psychotic disorders but are most severe and pervasive in schizophrenia and least pervasive in bipolar disorder and mania.

JournalAmerican Journal of Psychiatry
Journal citation167 (1), pp. 78-85
ISSN0002-953X
YearJan 2010
PublisherAmerican Psychiatric Publishing, Inc.
Web address (URL)http://search.proquest.com/docview/220478849?accountid=14987
Publication dates
PublishedJan 2010

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Pathways to care and ethnicity. 2: source of referral and help-seeking: report from the AESOP study
Morgan, C., Mallett, R.M., Hutchinson, G., Bagalkote, H., Morgan, K.D., Fearon, P., Dazzan, P., Boydell, J., McKenzie, K., Harrison, G., Murray, R.M., Jones, P.B., Craig, T.K.J. and Leff, J. 2005. Pathways to care and ethnicity. 2: source of referral and help-seeking: report from the AESOP study. British Journal of Psychiatry. 186 (4), pp. 290-296.

Pathways to care and ethnicity. 1: sample characteristics and compulsory admission: report from the ÆSOP Study
Morgan, C., Mallett, R.M., Hutchinson, G., Bagalkote, H., Morgan, K.D., Fearon, P., Dazzan, P., Boydell, J., McKenzie, K., Harrison, G., Murray, R.M., Jones, P.B., Craig, T.K.J. and Leff, J. 2005. Pathways to care and ethnicity. 1: sample characteristics and compulsory admission: report from the ÆSOP Study. British Journal of Psychiatry. 186 (4), pp. 281-289.

Different effects of typical and atypical antipsychotics on grey matter in first episode psychosis: the ÆSOP Study
Dazzan, P., Morgan, K.D., Orr, K.G., Hutchinson, G., Chitnis, X., Suckling, J., Fearon, P., McGuire, P.K., Mallett, R.M., Jones, P.B., Leff, J. and Murray, R.M. 2005. Different effects of typical and atypical antipsychotics on grey matter in first episode psychosis: the ÆSOP Study. Neuropsychopharmacology. 30 (4), pp. 765-774. doi:10.1038/sj.npp.1300603

Incidence of bipolar affective disorder in three UK cities: results from the ÆSOP Study
Lloyd, T., Kennedy, N., Fearon, P., Kirkbride, J.B., Mallett, R.M., Leff, J., Holloway, J., Harrison, G., Dazzan, P., Morgan, K.D., Murray, R.M. and Jones, P.B. 2005. Incidence of bipolar affective disorder in three UK cities: results from the ÆSOP Study. British Journal of Psychiatry. 186 (2), pp. 126-131.

A study of hippocampal shape anomaly in schizophrenia and in families multiply affected by schizophrenia or bipolar disorder
Connor, S.E.J., Ng, V., McDonald, C., Schulze, K., Morgan, K.D., Dazzan, P. and Murray, R.M. 2004. A study of hippocampal shape anomaly in schizophrenia and in families multiply affected by schizophrenia or bipolar disorder. Neuroradiology. 46 (7), pp. 523-534. doi:10.1007/s00234-004-1224-0

Neuropsychological studies of insight in psychosis
Morgan, K.D. and David, A.S. 2004. Neuropsychological studies of insight in psychosis. in: Amador, X.S. and David, A.S. (ed.) Insight and psychosis: awareness of illness in schizophrenia and related disorders. 2nd edition Oxford, UK Oxford University Press.

Perception of psychosis in patients
Morgan, K.D. 2004. Perception of psychosis in patients. Epidemiologia e Psichiatria Sociale. 13 (4), pp. 222-226.

Normal cerebral asymmetry in familial and non-familial schizophrenic probands and their unaffected relatives
Chapple, B., Grech, A., Sham, P., Toulopoulou, T., Walshe, M., Schulze, K., Morgan, K.D., Murray, R.M. and McDonald, C. 2004. Normal cerebral asymmetry in familial and non-familial schizophrenic probands and their unaffected relatives. Schizophrenia Research. 67 (1), pp. 33-40. doi:10.1016/S0920-9964(03)00095-1

The structural brain correlates of neurological soft signs in ÆSOP first-episode psychoses study
Dazzan, P., Morgan, K.D., Orr, K.G., Hutchinson, G., Chitnis, X., Suckling, J., Fearon, P., Salvo, J., McGuire, P.K., Mallett, R.M., Jones, P.B., Leff, J. and Murray, R.M. 2003. The structural brain correlates of neurological soft signs in ÆSOP first-episode psychoses study. Brain. 127 (1), pp. 143-153. doi:10.1093/brain/awh015

A functional magnetic resonance imaging study of overt letter verbal fluency using a clustered acquisition sequence: greater anterior cingulate activation with increased task demand
Fu, C.H.Y., Morgan, K.D., Suckling, J., Williams, S.C.R., Andrew, C., Vythelingum, G.N. and McGuire, P.K. 2002. A functional magnetic resonance imaging study of overt letter verbal fluency using a clustered acquisition sequence: greater anterior cingulate activation with increased task demand. NeuroImage. 17 (2), pp. 871-879. doi:10.1016/S1053-8119(02)91189-4

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