PMID- 18514322 OWN - NLM STAT- MEDLINE DCOM- 20081008 LR - 20151119 IS - 0165-1781 (Print) IS - 0165-1781 (Linking) VI - 160 IP - 1 DP - 2008 Jul 15 TI - Awareness of everyday executive difficulties precede overt executive dysfunction in schizotypal subjects. PG - 8-14 LID - 10.1016/j.psychres.2007.06.004 [doi] AB - Much evidence indicates that schizophrenic patients exhibit deficits on tests of executive functioning. It is therefore hypothesized that individuals with high schizotypal personality traits that may have a predisposition to schizophrenia, are also likely to exhibit impairments in neuropsychological tests of executive function. The sample consisted of 65 healthy controls that were divided into high and low scorers on the Schizotypal Personality Questionnaire (SPQ-B: Raine et al., 1995). Participants completed a battery of executive tasks (category and letter fluency, the Hayling test, Zoo map); however, a MANOVA revealed no significant differences between high and low SPQ scorers. Nevertheless, high SPQ scorers scored significantly higher on the Dysexecutive Questionnaire (DEX) self-rating scale of everyday executive problems; and these self-ratings correlated significantly with the disorganisation and cognitive-perceptual features of the SPQ-B, but not with the interpersonal features. This suggests that perceived executive dysfunction is pre-morbidly present and may become evident in test performance only with the onset of schizophrenia itself. FAU - Laws, Keith R AU - Laws KR AD - School of Psychology, University of Hertfordshire, College Lane Hatfield, UK. k.laws@herts.ac.uk FAU - Patel, Devina D AU - Patel DD FAU - Tyson, Philip J AU - Tyson PJ LA - eng PT - Comparative Study PT - Journal Article DEP - 20080602 PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 SB - IM MH - Adolescent MH - Adult MH - Attitude to Health MH - *Awareness MH - Cognition Disorders/*diagnosis/physiopathology/psychology MH - Control Groups MH - Disease Susceptibility/diagnosis MH - Female MH - Frontal Lobe/*physiopathology MH - Health Status MH - Humans MH - Male MH - Middle Aged MH - Neuropsychological Tests/*statistics & numerical data MH - Personality Inventory/statistics & numerical data MH - Psychometrics MH - Schizophrenia/diagnosis/physiopathology MH - Schizotypal Personality Disorder/*diagnosis/physiopathology/psychology MH - Surveys and Questionnaires EDAT- 2008/06/03 09:00 MHDA- 2008/10/09 09:00 CRDT- 2008/06/03 09:00 PHST- 2006/11/07 00:00 [received] PHST- 2007/03/19 00:00 [revised] PHST- 2007/06/03 00:00 [accepted] PHST- 2008/06/03 09:00 [pubmed] PHST- 2008/10/09 09:00 [medline] PHST- 2008/06/03 09:00 [entrez] AID - S0165-1781(07)00170-9 [pii] AID - 10.1016/j.psychres.2007.06.004 [doi] PST - ppublish SO - Psychiatry Res. 2008 Jul 15;160(1):8-14. doi: 10.1016/j.psychres.2007.06.004. Epub 2008 Jun 2.