The differential effect of illicit drug use on cognitive function in first-episode psychosis and healthy controls

Donoghue, K., Mazzoncini, R., Hart, J., Zanelli, J., Morgan, C., Dazzan, P., Morgan, K.D., Murray, R.M., Jones, P.B. and Doody, G.A. 2012. The differential effect of illicit drug use on cognitive function in first-episode psychosis and healthy controls. Acta Psychiatrica Scandinavica. 125 (5), pp. 400-411. https://doi.org/10.1111/j.1600-0447.2011.01803.x

TitleThe differential effect of illicit drug use on cognitive function in first-episode psychosis and healthy controls
AuthorsDonoghue, K., Mazzoncini, R., Hart, J., Zanelli, J., Morgan, C., Dazzan, P., Morgan, K.D., Murray, R.M., Jones, P.B. and Doody, G.A.
Abstract

The differential effect of illicit drug use on cognitive function in first-episode psychosis and healthy controls. Objective:  Illicit drug use can result in impairment in cognitive function in healthy individuals. Individuals with a psychotic disorder also show a deficit in cognitive function. Drug use may simply contribute to the characteristic cognitive deficit found in psychosis or alternatively result in a 'double deficit'. This study aims to investigate the association between drug use and cognitive function at the first-episode of psychosis and in community-matched controls. Method::  One hundred and seventy-seven patients at the first episode of psychosis completed a battery of neuropsychological tests. Those that had used drugs in the previous year (n = 80) were compared with those who had not used drugs in the previous year (n = 97). A subsample of the first-episode psychosis patients were compared with community-matched controls (n = 110) according to drug-use status. Results::  Patients with a first episode of psychosis who had used drugs performed equally to those who had not used drugs on neuropsychological tests. In contrast, healthy controls who had used drugs in the previous year performed worse on tests of executive function and working memory compared with those controls that had not used drugs. Conclusion:  There are differential associations of illicit drug misuse with cognitive function for first-episode psychosis patients and healthy controls.

JournalActa Psychiatrica Scandinavica
Journal citation125 (5), pp. 400-411
ISSN0001-690X
Year2012
PublisherWiley
Digital Object Identifier (DOI)https://doi.org/10.1111/j.1600-0447.2011.01803.x
Publication dates
Published2012

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The structural brain correlates of neurological soft signs in healthy individuals
Dazzan, P., Morgan, K.D., Chitnis, X., Suckling, J., Morgan, C., Fearon, P., McGuire, P.K., Jones, P.B., Leff, J. and Murray, R.M. 2006. The structural brain correlates of neurological soft signs in healthy individuals. Cerebral Cortex. 16 (8), pp. 1225-1231. https://doi.org/10.1093/cercor/bhj063

Insight and cognition
Morgan, K.D. 2006. Insight and cognition. in: Morgan, K.D., David, A.S., Murray, R.M. and Eberhard, J. (ed.) Cognition and schizophrenia: improving real life function Cambridge, UK Cambridge Medical Communication. pp. 37-43

Increased pituitary volume in antipsychotic-free and antipsychotic-treated patients of the sop first-onset psychosis study
Pariante, C.M., Dazzan, P., Danese, A., Morgan, K.D., Brudaglio, F., Morgan, C., Fearon, P., Orr, K.G., Hutchinson, G., Pantelis, C., Velakoulis, D., Jones, P.B., Leff, J. and Murray, R.M. 2005. Increased pituitary volume in antipsychotic-free and antipsychotic-treated patients of the sop first-onset psychosis study. Neuropsychopharmacology. 30 (10), pp. 1923-1931. https://doi.org/10.1038/sj.npp.1300766

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. https://doi.org/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. https://doi.org/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. https://doi.org/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. https://doi.org/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. https://doi.org/10.1016/S1053-8119(02)91189-4

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