WAIS-IV Performance in Patients With Schizophrenia

Abstract

Wechsler Adult Intelligence Scale (WAIS) is one of the most widely used instruments to measure cognitive functioning. The aims of this study were 1) to obtain the cognitive profile of Spanish patients with schizophrenia on the WAIS-IV; 2) to compare their profile to the profile of a healthy control group; and 3) to compare the cognitive profile of patients with schizophrenia to the performance observed in two separate previous studies in Canada and China. A sample of 99 outpatients and 99 healthy control participants, matched on age, sex, and educational level, were measured using the WAIS-IV, including 10 core subtests, 4 indices, and 2 general intelligence scores, to obtain their cognitive profile. Results showed that only the performance on the Verbal Comprehension Index and its subtests was similar in the patient and control groups. This pattern of cognitive impairment was similar to the pattern reported in the Canadian and Chinese studies.

Impaired facial emotion perception of briefly presented double masked stimuli in violent offenders with schizophrenia spectrum disorders

“…Psychomotor speed was associated with the ability to perceive briefly presented emotion stimuli but lost its significance when intellectual ability was factored in. In our study both measures of intelligence – information subscale of WAIS which has been shown to be relatively preserved in schizophrenia and the more illness sensitive matrix reasoning subscale (Fuentes-Dura et al, 2019) were associated with the ability to correctly perceive emotion. Contrary to the study by Sergi et al (2007) but in line with the study by Buck et al (2016), we found associations between emotion perception and positive but not negative symptoms.…”

Impact of number of episodes on neurocognitive trajectory in bipolar disorder patients: a 5-year follow-up study

“…Additionally, the vocabulary subtest of the WAIS-III was used to or estimate premorbid IQ. Similarly, a short form of the WAIS-III was used to assess the current IQ (Fuentes Durá et al ., 2010).…”

A fundamental distinction in early neural processing of implicit social interpretation in schizophrenia and bipolar disorder

“…Patients and controls underwent neuropsychological assessment using the following SC psychometric instruments: Face Emotion Identification Test (FEIT) ( Kerr and Neale, 1993 ); Social Perception Scale (SPS) ( Garcia, 2003 ); Schema Component Sequencing Task – Revised (SCST) ( Corrigan and Addis, 1995 ); Ambiguous Intentions Hostility Questionnaire (AIHQ) ( Combs, 2007 ); Reading the Mind in the Eyes Test (RMET) ( Baron‐Cohen, 2001 ); Mentalization Questionnaire (MZQ) ( Hausberg, 2012 ); Toronto Empathy Questionnaire (TEQ) ( Spreng, 2009 ). We used the vocabulary subtest of the Wechsler Adult Intelligence Scale - WAIS-III ( Wechsler, 2008 ) as an estimate of premorbid intelligence ( Fuentes-Durá, 2019 , Bright and van der Linde, 2020 ). Evaluation was conducted within a 2-week interval after fMRI assessment.…”