Facial expression perception correlates with verbal working memory function in schizophrenia.

AIMS: Facial emotion perception is considered to provide a measure of social cognition. Numerous studies have examined the perception of emotion in patients with schizophrenia, and the majority has reported impaired ability to recognize facial emotion perception. We aimed to investigate the correlation between facial expression recognition and other domains of social cognition and neurocognition in Japanese patients with schizophrenia. METHODS: Participants were 52 patients with schizophrenia and 53 normal controls with no history of psychiatric diseases. All participants completed the Hinting Task and the Social Cognition Screening Questionnaire. The Brief Assessment of Cognition in Schizophrenia was administered only to the patients. Facial emotion perception measured by the Facial Emotion Selection Test (FEST) was compared between the patients and normal controls. RESULTS: Patients performed significantly worse on the FEST compared to normal control subjects. The FEST total score was significantly positively correlated with scores of the Brief Assessment of Cognition in Schizophrenia attention subscale, Hinting Task, Social Cognition Screening Questionnaire Verbal Working Memory and Metacognition subscales. Stepwise multiple regression analysis revealed that verbal working memory function was positively related to the facial emotion perception ability in patients with schizophrenia. CONCLUSIONS: These results point to the concept that facial emotion perception and some types of working memory use common cognitive resources. Our findings may provide implications for cognitive rehabilitation and related interventions in schizophrenia.

New instrument for measuring multiple domains of social cognition: construct validity of the Social Cognition Screening Questionnaire (Japanese version).

AIM: The present study aimed to test the construct validity and internal consistency of the Social Cognition Screening Questionnaire (SCSQ) (Japanese version). METHODS: We first tested whether the subscale scores and the total score of the SCSQ could discriminate patients with schizophrenia from normal controls. Next, we tested the internal consistency. Finally, we investigated the relation between the subscale scores and other measures of social cognition and social functioning that were presumed to correspond to the subscale's scores, including the Hinting Task, the Ambiguous Intentions Hostility Questionnaire (AIHQ), the Beck Cognitive Insight Scale and the Social Functioning Scale. RESULTS: The subscale scores and the total score appeared to show more robust between-group differences than other measures of social cognition, such as the AIHQ and the Hinting Task. The total score distinguished the patients from normal controls with an area under the receiver-operator curve of 0.84, which indicated a high level of discrimination. The Cronbach's alpha for the four subscales was 0.72, which was considered acceptable. In terms of criterion-related validity, theory of mind, metacognition and hostility bias subscale scores showed significant correlations with the Hinting Task, Beck Cognitive Insight Scale and AIHQ, respectively. Moreover, the theory of mind subscale score showed a significant correlation with four domain scores of the Social Functioning Scale. The present results indicated good construct validity and internal consistency of the SCSQ. CONCLUSIONS: Although this is an interim report with a small sample size, the SCSQ holds promise as an efficient measure for social cognition.

A pilot study on the effects of cognitive remediation on hemodynamic responses in the prefrontal cortices of patients with schizophrenia: a multi-channel near-infrared spectroscopy study.

The regional neuronal changes taking place between before and after cognitive rehabilitation are still not characterized in schizophrenia patients. In addition, it is not known whether these regional changes are predictive or correlated with treatment response. We conducted a preliminary quasi-experimental study to investigate the effects of a Neuropsychological Educational Approach to Cognitive Remediation (NEAR), one of the cognitive remediation therapies, on neurocognitive functioning assessed by the Japanese version of the Brief Assessment of Cognition in Schizophrenia (BACS-J), and on prefrontal and temporal hemodynamic responses during working memory (WM) task (2-back, letter version) using 52-channel near-infrared spectroscopy (NIRS). We assessed 19 patients with schizophrenia or schizoaffective disorder twice with an interval of 6months. Moreover, taking into consideration the possible practice effect, we assessed 12 control patients twice with an interval of 6months. The NEAR group, in comparison with the control group, showed significant improvement in two subcomponents of BACS-J, that is, motor speed and executive function along with the composite scores. The NEAR group also showed a significant increase in brain activation in the bilateral cortical regions associated with WM, and in comparison with the control group the between-group differences were restricted to the right frontopolar area. In addition, the amount of enhancement in some cognitive subcomponents was positively correlated with the magnitude of an increase in hemodynamic response during WM task predominantly in the right hemispheres. These findings suggest that neurocognitive deficits in schizophrenia and their neural dysfunction may be improved by NEAR, and NIRS may be a useful tool to assess the changes of the neural activity underlying the improvement of neurocognitive functioning elicited by neurocognitive rehabilitation.

[Social cognition of schizophrenia: bridging gap between brain science and psychosocial intervention].

The concept and assessment tools for social cognition of schizophrenia were reviewed in order to bridge the gap between brain cognitive science and psycho-social intervention. Social cognition as well as neuro-cognition strongly influences social functioning, and the impact of neuro-cognition is mediated by social cognition. Neuronal networks of personal identification, facial perception, emotional identification, eye contact, "theory of mind", mutual communication, and the decision-making process have been clarified recently. The results of face discrimination and emotion recognition tasks show impairment in persons with schizophrenia as compared with healthy controls, especially fear, dislike, and sad recognition tasks. It might be difficult for them to link ambiguous stimuli with specific emotions, and they have a tendency to recognize uncomfortable emotions easily. "Jumping to conclusions" tendency (JTC) was identified in previous research on delusion. JTC develops from information uptake bias and confidence bias, and they might be thought to be trait and state. Social problem-solving is the skill to use social cognition to comprehensively adjust to specific social situations, and processing skills of social problem-solving are related to divergent thinking. Rating scales and the results of previous studies on emotion recognition, social perception, attribution style, and "theory of mind" were summarized. Furthermore, psycho-social interventions to improve emotion recognition directly, JTC, and divergent thinking were reported. Interventions aiming at improving social cognition or meta-cognition directly have been recently developed, which might improve some components of social functioning that used to be difficult to improve. These concepts of social cognition and researches on brain science, assessment tools, and intervention methods would clarify the mechanisms of the effects of psycho-social interventions, improve their methodology, and help to develop new aspects of intervention.

Self-perceived burden in patients with cancer: scale development and descriptive study.

PURPOSE: The purpose of this study was to develop a Japanese version of the Self-Perceived Burden Scale (SPBS) for patients with cancer, to confirm its validity and reliability, and to elucidate the features of Self-Perceived Burden in Japanese patients with cancer. METHODS: Firstly, study team members carried out repeated translation and back translation. After that, scale development involved several phases including item development, construct validity testing, criterion-related validity testing, and reliability testing. A questionnaire that included the SPBS was distributed to 310 patients with cancer. Responses were received from 226 (72.9%) patients and final analysis was performed on data from 210 of these. RESULTS: Exploratory factor analysis indicated that the 18-item version (α = 0.96) of the scale consisted of a single main factor. A 9-item abbreviation (α = 0.93) was therefore proposed. The convergent correlations of the SPBS with the FACIT-Sp and GHQ-12 scales showed significant correspondence. The construct of SPB was distinct from the "social and family well-being" FACIT-Sp subscale. Performance status, disease duration, living arrangement, and main caregiver were significantly related to the SPBS. CONCLUSION: We developed a Japanese version of the SPBS for cancer patients and demonstrated its validity and reliability, which makes it possible to study SPB in cancer patients in Japan. Our study revealed that cancer patients in Japan also feel SPB, in a way that relates specifically to their cultural background.

The pilot study of a Neuropsychological Educational Approach to Cognitive Remediation for patients with schizophrenia in Japan.

The main aim of this study is to demonstrate the feasibility and efficacy of a Neuropsychological Educational Approach to Cognitive Remediation (NEAR) in Japan. This multi-site study used a quasi-experimental design. Fifty-one patients with schizophrenia or schizoaffective disorder participated. The NEAR program consisted of two 1-h computer sessions per week and an additional group meeting session lasting 30 to 60 min once a week. The subjects completed 6 months of NEAR sessions before being assessed. Moreover, taking into consideration the possible practice effect, we assessed 21 control patients twice with an interval of 6 months. We assessed cognitive function by using the Japanese version of the Brief Assessment of Cognition in Schizophrenia (BACS-J). Consequently, the NEAR group showed significant improvement in overall cognitive function, and in comparison with the control group, these findings were generally similar except for motor speed. Although the present study has its limitations, it demonstrates that the NEAR is feasible in Japan as well as it is in Western countries.

[Outcome studies of cognitive remediation for schizophrenia].

Cognitive remediation purports to improve the cognitive dysfunction of schizophrenia, and has many forms. Eighty percent of people with schizophrenia suffer from cognitive dysfunction. The impact of cognitive dysfunction on everyday activity is widespread. Cognitive remediation as a non-pharmaceutical, psychosocial treatment modality for cognitive dysfunction has received attention as medical treatment has been able to make only limited gains. The ultimate goal of cognitive remediation is to improve the functional outcome. The increased interest in cognitive remediation resulted in numerous reports of outcome studies and meta-analysis. This paper reports different methods of cognitive remediation, evaluations of outcome studies, and various outcome indices. Cognitive remediation differs according to whether specific cognitions are targeted, and whether a method takes a compensatory or restorative approach. This paper briefly reviews methods of cognitive remediation which demonstrated their effect through RCT: IPT, NEAR, CET, and NET. Cognitive remediation often includes sessions that aim for transfer of the gained learning, such as verbal sessions or vocational skills training. Cognitive remediation is considered most effective when included as part of a comprehensive rehabilitation program. It is important to note that various studies report different outcome indices, control groups, and effect sizes in evaluating the effect of cognitive remediation.

Psychosexual fixation and defense mechanisms in a sample of young Japanese women: a preliminary study.

The present pilot study examined psychosexual fixations and defense mechanisms in a sample of young Japanese women. The Lexical Rorschach count and the Defense Mechanisms Inventory were administered to 24 female college students. Sadism on the Lexical Rorschach count was positively correlated with Reversal of Affect. Phallic fixation on the Lexical Rorschach count was positively correlated with Projection. Psychoanalytic hypotheses about the associations between psychosexual fixations and defense mechanisms were partially confirmed.

Intrinsic motivation inventory: an adapted measure for schizophrenia research.

This article describes the psychometric validation of a scale designed to measure intrinsic motivation (IM) in schizophrenia. Recent studies have highlighted the relationship between motivation and functional outcome in schizophrenia and identified IM as an important mediating factor between neurocognition and psychosocial outcome. It therefore becomes imperative to have validated measures of IM for empirical use. To that end, we validated a self-report IM scale that gauges the central motivational structures identified by Self-determinism Theory as pertinent to cognitive task engagement, skill acquisition, treatment compliance, and remediation outcome. Participants were schizophrenia outpatients involved in a cognitive remediation study (n = 58), a convenience subsample of clinically stable schizophrenia outpatients (n = 15), and a group of healthy normals (n = 22). The Intrinsic Motivation Inventory for Schizophrenia Research (IMI-SR) is a concise instrument, possessing good internal consistency (alpha = .92) and test-retest reliability (intraclass correlation = .77). Data were analyzed to abridge the original 54 items into a final 21-item questionnaire comprised of 3 domains relevant to motivation for treatments (interest/enjoyment, perceived choice, value/usefulness). The scale was highly associated with germane constructs of motivation for health-related behaviors, including perceived competency for attempting challenging tasks and autonomous treatment engagement. Importantly, the scale was able to distinguish improvers and nonimprovers on a cognitive task and actual learning exercises, delineate high vs low treatment attendance, and demonstrate sensitivity to motivational changes due to intervention variation. The IMI-SR is a viable instrument to measure IM in schizophrenia as part of a cognitive remediation protocol or psychosocial rehabilitation program.