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1.
Neuropsychopharmacol Rep ; 43(1): 141-145, 2023 03.
Article in English | MEDLINE | ID: mdl-36753404

ABSTRACT

AIM: Studies showed that cognitive function affects occupational function in patients with schizophrenia. This study aimed to determine the effects of cognitive function on occupational function in Japanese patients with schizophrenia using the Brief Assessment of Cognition in Schizophrenia (BACS). METHODS: Participants were 198 outpatients with schizophrenia or schizoaffective disorder (66 females; mean age 34.5 ± 6.8 years). Occupational function was assessed using the work subscale of the Life Assessment Scale for Mental Ill (LASMI-w). Multiple regression analysis was performed using the BACS as the independent variable and LASMI-w as the dependent variable. Furthermore, we divided the LASMI-w score into three groups, <11, 11-20, and >21, and performed a multinomial logistic regression analysis. RESULTS: Multiple regression analysis revealed that LASMI-w score was negatively associated with BACS composite score (ß = -0.20, p < 0.01). Among the sub-items of the BACS, only the symbol-coding score showed a significant negative association (ß = -0.19, p < 0.05). Multinomial logistic analysis showed that the better the composite and symbol coding scores, the smaller the impairment of the occupational function (composite score: ß = 2.39 between mild and moderate occupational impairments, p < 0.05; symbol coding score: ß = 2.44 between mild and severe impairments, p < 0.05). CONCLUSION: The occupational function of patients with schizophrenia was associated with overall cognitive function (composite score). In particular, the symbol coding score of the BACS was suggested to be related to work ability. These results might be useful in the assessment and training of cognitive rehabilitation aimed at employment support.


Subject(s)
Psychotic Disorders , Schizophrenia , Adult , Female , Humans , Cognition , East Asian People , Neuropsychological Tests , Schizophrenia/complications , Male
2.
Neuropsychopharmacol Rep ; 42(4): 478-484, 2022 12.
Article in English | MEDLINE | ID: mdl-36039823

ABSTRACT

BACKGROUND: Brain imaging studies have reported that the effect of repetitive transcranial magnetic stimulation (rTMS) is associated with the activities of the dorsolateral prefrontal cortex (DLPFC) and ventral medial prefrontal cortex (VMPFC). However, few studies have been conducted in Japanese patients. AIM: We aimed to identify brain regions associated with depressive symptom changes by measuring regional cerebral blood flow (rCBF) in the DLPFC and VMPFC before and after the high-frequency rTMS to the left DLPFC in Japanese patients with treatment-resistant depression. METHOD: Fourteen patients participated in the rTMS study and were assessed with the 17-item Hamilton depression rating scale (HAM-D17 ). Among them, 13 participants underwent magnetic resonance imaging scan of the brain using the arterial spin labeling method. The rCBF was calculated using the fine stereotactic region of interest template (FineSRT) program for automated analysis. We focused on eight regions reported in previous studies. RESULTS: Depression severity significantly decreased after 2 week (HAM-D17 :11.4 ± 2.8, P = 0.00027) and 4 week (HAM-D17 : 11.0 ± 3.7, P = 0.0023) of rTMS treatment. There was no significant change in rCBF at each region in the pre-post design. However, there was a significantly negative correlation between baseline rCBF in the right DLPFC and the improvement in HAM-D17 score (r = -0.559, P = 0.047). CONCLUSION: We obtained supportive evidence for the effectiveness of rTMS to the prefrontal cortex in treatment-resistant depression, which may be associated with reduced rCBF of the right DLPFC before initiation of rTMS.


Subject(s)
Depressive Disorder, Major , Transcranial Magnetic Stimulation , Humans , Japan , Depression , Depressive Disorder, Major/therapy , Prefrontal Cortex/diagnostic imaging
4.
Front Psychiatry ; 10: 589, 2019.
Article in English | MEDLINE | ID: mdl-31507463

ABSTRACT

Background: Schizophrenia is a disabling illness. Social cognition and interaction training (SCIT) seeks to improve patients' social functioning by alleviating deficits in social cognition. SCIT has shown promise in improving social cognition in patients with schizophrenia, but has not yet been studied in Japan. Design: An assessor-masked, randomized, parallel-group clinical trial was conducted to compare the feasibility and efficacy of SCIT with treatment as usual (TAU). Setting: Participants were recruited from outpatient clinics at the National Center of Neurology and Psychiatry and four other hospitals in Japan. Participants: Seventy-two patients diagnosed with schizophrenia or schizoaffective disorder consented to participate in the trial. Procedure: Participants were randomly allocated to either a SCIT subgroup or a TAU subgroup. SCIT is a manual-based group intervention that is delivered in 20-24-h-long weekly sessions. Groups include two to three clinicians and four to eight patients. Hypotheses: We hypothesized that SCIT would be found to be feasible and that patients who were randomized to receive SCIT would exhibit improvements in social cognition. Results: Data from 32 participants in each subgroup were entered into analyses. The persistence rate in the SCIT subgroup was 88.9%, and the average attendance rate was 87.0%. Intrinsic motivation was significantly higher in the SCIT subgroup than the TAU group during the first half of the program. Mixed effects modeling of various outcome measures revealed no significant interaction between measurement timepoint and group in any measures, including social cognition, neurocognition, symptom severity, and social functioning. In the case of the social cognition measure, significant change was observed only in the SCIT subgroup; however, the interaction between timepoint and group failed to reach significance. In an exploratory subgroup analysis, a shorter duration of illness was found to be associated with significantly better improvement on the social cognition measure in the SCIT subgroup compared with the TAU subgroup. Conclusions: In terms of the primary objective, the relatively low dropout rate observed in the present study suggests that SCIT is feasible and well tolerated by patients with schizophrenia in Japan. This view is also supported by participants' relatively high attendance and intrinsic motivation.

5.
SAGE Open Med Case Rep ; 7: 2050313X19827739, 2019.
Article in English | MEDLINE | ID: mdl-30783527

ABSTRACT

Methamphetamine, a potent psychostimulant, may cause a condition of mood disorder among users. However, arguments concerning methamphetamine-induced mood disorder remain insufficient. This case study describes a male with methamphetamine-induced bipolar disorder not accompanied by psychotic symptoms, who twice in an 11-year treatment period, manifested an ultra-rapid cycler condition alternating between manic and depressive mood states with 3- to 7-day durations for each. The conditions ensued after a bout of high-dose methamphetamine use and shifted to a moderately depressive condition within 1 month after the use under a treatment regimen of aripiprazole and mood stabilizers. The cycler condition may be characteristic of a type of the bipolar disorder and a sign usable for characterization. Further efforts are needed to seek distinctive features and to improve diagnostic assessment of methamphetamine-induced mood disorders.

6.
Neuropsychol Rehabil ; 29(9): 1475-1487, 2019 Oct.
Article in English | MEDLINE | ID: mdl-29212415

ABSTRACT

Individuals with schizophrenia exhibit cognitive impairments, which are related to impairments in social functions. This study investigated the effects of cognitive remediation on cognitive, social, and daily living impairment. Participants were individuals with schizophrenia between 20 and 60 years old (N = 44). Participants were randomly assigned to two groups: a cognitive remediation intervention group and a non-intervention control group. The control group was provided with conventional drug therapy and either day care or occupational therapy. The intervention group was provided with the "neuropsychological educational approach to cognitive remediation" developed by Medalia and co-workers. We assessed cognitive functions using the brief assessment of cognition in schizophrenia (BACS), and evaluated social and daily living functions using the global assessment of functioning (GAF) scale. Significant group by time interaction effects indicated that verbal memory, working memory, attention, and executive function showed significantly greater improvement at post-intervention for the intervention group than the control group. Social and daily living function also improved in the intervention group and improvements were maintained one year after intervention. These preliminary findings indicate that the combination of cognitive remediation and psychiatric rehabilitation is effective for facilitating improvements in cognitive function and social and daily living functions in individuals with schizophrenia.


Subject(s)
Activities of Daily Living , Cognitive Dysfunction/therapy , Cognitive Remediation/methods , Outcome Assessment, Health Care , Psychotic Disorders/complications , Schizophrenia/complications , Adult , Cognitive Dysfunction/etiology , Cognitive Dysfunction/physiopathology , Female , Humans , Male , Middle Aged , Neuropsychological Tests
7.
BMC Psychiatry ; 18(1): 83, 2018 03 27.
Article in English | MEDLINE | ID: mdl-29587688

ABSTRACT

BACKGROUND: Cognitive remediation therapy (CRT) effectively reduces neurocognitive impairment in patients with schizophrenia, but few studies have used structural neuroimaging methods to assess its neuroanatomical effects. We investigated these effects, as well as the association between changes in cortical volume and neurocognitive performance. METHOD: Between August 2013 and September 2016, we performed a randomized controlled study comprising a CRT group (16 individuals) and a treatment-as-usual (TAU) group (15 individuals) of patients with schizophrenia. CRT participants engaged in twice-weekly computer-assisted CRT sessions and weekly group meetings for 12 weeks. T1-weighted magnetic resonance imaging was performed before and after the intervention period, and whole-brain voxel-based morphometric analysis was used to detect significant cortical gray matter volume changes. We also assessed the correlation between cortical volume changes and CRT-derived neurocognitive improvements. RESULTS: The CRT group exhibited significantly greater improvements than the TAU group in verbal fluency (P = 0.012) and global cognitive scores (P = 0.049). The CRT group also exhibited significantly greater increases in right hippocampal volume than the TAU group (P < 0.001). Changes in verbal fluency scores and right hippocampal volumes were positively correlated (r = 0.53, P = 0.001). CONCLUSION: We found that CRT significantly increased right hippocampal volumes and that these enhancements were positively correlated with changes in verbal fluency scores. Our results indicate that CRT induces cognitive improvement through hippocampal plasticity. TRIAL REGISTRATION: Registration number: UMIN000026146 , 2017/02/15, retrospectively registered.


Subject(s)
Cognitive Remediation/methods , Schizophrenia/therapy , Schizophrenic Psychology , Therapy, Computer-Assisted/methods , Adult , Brain/diagnostic imaging , Brain/pathology , Female , Hippocampus/diagnostic imaging , Hippocampus/pathology , Humans , Magnetic Resonance Imaging , Male , Schizophrenia/diagnostic imaging , Schizophrenia/pathology , Temporal Lobe/diagnostic imaging , Temporal Lobe/pathology , Treatment Outcome
8.
Neuropsychol Rehabil ; 28(3): 387-397, 2018 Apr.
Article in English | MEDLINE | ID: mdl-27150346

ABSTRACT

Devising new methods to improve neurocognitive impairment through cognitive remediation is an important research goal. We developed an original computer programme termed the Japanese Cognitive Rehabilitation Programme for Schizophrenia (JCORES) that provides cognitive practice across a broad range of abilities. The current study examined for the first time whether a cognitive remediation programme, including both computerised cognitive training using JCORES and group intervention such as enhancing meta-cognition and teaching strategies, is more effective than treatment as usual for improving neurocognitive and social functioning. Sixty-two outpatients with schizophrenia were randomised to either a cognitive remediation group or a control group. Participants engaged in two computerised cognitive training sessions and one group meeting per week for 12 weeks. The average number of total sessions attended (computerised cognitive practice + group intervention) was 32.3 (89.7%). The cognitive remediation group showed significantly more improvements in verbal memory, composite score of the Brief Assessment of Cognition in Schizophrenia, Japanese version (BACS-J), and general psychopathology on the Positive and Negative Syndrome Scale (PANSS) than the control group. These findings demonstrate that a cognitive remediation programme is feasible in Japan and is a more effective way to improve neurocognitive functioning and psychiatric symptoms.


Subject(s)
Cognition Disorders/rehabilitation , Cognitive Remediation/methods , Schizophrenia/complications , Schizophrenic Psychology , Therapy, Computer-Assisted/methods , Adult , Cognition Disorders/etiology , Female , Humans , Male , Memory Disorders/etiology , Memory Disorders/rehabilitation , Middle Aged , Neuropsychological Tests , Schizophrenia/rehabilitation , Verbal Learning/physiology , Young Adult
9.
Psychiatr Rehabil J ; 40(1): 4-11, 2017 03.
Article in English | MEDLINE | ID: mdl-28182471

ABSTRACT

OBJECTIVE: Cognitive impairment is common in schizophrenia, and is associated with poor psychosocial functioning. Previous studies had inconsistently shown improvement in cognitive functions with cognitive remediation therapy. This study examined whether cognitive remediation is effective in improving both cognitive and social functions in schizophrenia in outpatient settings that provide learning-based psychiatric rehabilitation. This study is the first randomized controlled trial of cognitive remediation in Japan. METHOD: Study participants were individuals with schizophrenia from 6 outpatient psychiatric medical facilities who were randomly assigned either a cognitive remediation program or treatment as usual. The cognitive remediation intervention includes Cognitive training using computer software (CogPack; Japanese version) administered twice a week and a weekly group over 12 weeks and was based on the Thinking Skills for Work program. Most study participants were attending day treatment services where social skills training, psychoeducation for knowledge about schizophrenia, group activities such as recreation and sport, and other psychosocial treatment were offered. Cognitive and social functioning were assessed using the Brief Assessment of Cognition in Schizophrenia (BACS) and Life Assessment Scale for Mentally Ill (LASMI) at pre- and postintervention. RESULTS: Of the 60 people with schizophrenia enrolled, 29 were allocated to the cognitive remediation group and 31 were allocated to the treatment as usual group. Processing speed, executive function, and the composite score of the BACS showed significantly greater improvement for the cognitive remediation group than the treatment as usual group. In addition, there was significant improvement in interpersonal relationships and work skills on the LASMI for the cognitive remediation group compared with the treatment as usual group. Changes from pretreatment to posttreatment in verbal fluency and interpersonal relationships were significantly correlated, as well as changes in attention and work skills. CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: The present findings showed that providing cognitive remediation on addition to psychiatric rehabilitation contributed to greater improvement in both cognitive and social functioning than psychiatric rehabilitation alone. Cognitive remediation may enhance the efficacy of psychiatric rehabilitation improving social functioning. (PsycINFO Database Record


Subject(s)
Cognitive Dysfunction/rehabilitation , Cognitive Remediation/methods , Psychiatric Rehabilitation/methods , Schizophrenia/rehabilitation , Therapy, Computer-Assisted/methods , Adult , Cognitive Dysfunction/etiology , Cognitive Remediation/instrumentation , Female , Humans , Japan , Male , Middle Aged , Schizophrenia/complications , Young Adult
10.
Psychiatry Clin Neurosci ; 71(5): 301-308, 2017 May.
Article in English | MEDLINE | ID: mdl-27873453

ABSTRACT

AIM: The aim of this study was to clarify whether improvement of cognitive functioning by cognitive remediation therapy can improve work outcome in schizophrenia and other severe mental illnesses when combined with supported employment. METHODS: The subjects of this study were persons with severe mental illness diagnosed with schizophrenia, major depression, or bipolar disorder (ICD-10) and cognitive dysfunction who participated in both cognitive remediation using the Thinking Skills for Work program and a supported employment program in a multisite, randomized controlled study. Logistic and multiple linear regression analyses were performed to clarify the influence of cognitive functioning on vocational outcomes, adjusting for demographic and clinical variables. RESULTS: Improvement of cognitive functioning with cognitive remediation significantly contributed to the total days employed and total earnings of competitive employment in supported employment service during the study period. Any baseline demographic and clinical variables did not significantly contribute to the work-related outcomes. CONCLUSION: A cognitive remediation program transferring learning skills into the real world is useful to increase the quality of working life in supported employment services for persons with severe mental illness and cognitive dysfunction who want to work competitively.


Subject(s)
Bipolar Disorder/psychology , Bipolar Disorder/therapy , Cognition Disorders/therapy , Cognitive Remediation , Depressive Disorder, Major/psychology , Depressive Disorder, Major/therapy , Schizophrenia/therapy , Adult , Bipolar Disorder/complications , Cognition Disorders/complications , Depressive Disorder, Major/complications , Employment, Supported/statistics & numerical data , Female , Humans , Male , Middle Aged , Schizophrenia/complications , Schizophrenic Psychology , Young Adult
11.
Seishin Shinkeigaku Zasshi ; 118(4): 242-248, 2016.
Article in Japanese | MEDLINE | ID: mdl-30653893

ABSTRACT

Robert P. Liberman introduced "Personal Support Specialists" as a role of psychiatrists who support patients' lives and help them discover the meaning of life, as well as helping with daily activities and personal difficulties. They need to have multiple perspectives on medical, subjective, social, and life recoveries. Important areas to help patients practically are job-assis- tance, supporting love and marriage, and independent living in the community. I usually use Seikatsu-Rinsho (The way of Living Learning), cognitive behavioral therapy, and Seikatsu-ryouhou (Life-centered Therapy) by Hiroshi Utena as basic principles in my practice. Recently, I shed light on an -individual value system to evolve these principles. Reflecting on two recovery stories I co-encountered, contents of psychiatric interviews and roles of psychiatrists are discussed. There remain many difficulties which modern psychiatry has not resolved, such as negative symptoms and marked disabilities in social life. We as psy- chiatrists should know how to evolve and maintain hope and intrinsic motivation to support a patient's life.


Subject(s)
Psychiatry , Specialization
12.
Seishin Shinkeigaku Zasshi ; 117(3): 179-94, 2015.
Article in Japanese | MEDLINE | ID: mdl-26524844

ABSTRACT

The negative symptoms of schizophrenia are usually treatment-refractory, and considered to be a major cause of a poor outcome. Recently, it has become an important issue to elucidate the etiology of and develop treatment for negative symptoms in order to improve the outcome of schizophrenia patients. Firstly, the history of negative symptoms was reviewed. Several lines of factor-analysis studies have suggested that negative symptoms are independent from other symptoms of schizophrenia, and consist of two factors, the poverty of expression and avolition, while the results depend upon the assessment scale employed in each analysis. Anhedonia, a part of avolition, may be considered as the impairment of pleasure-seeking behavior, the impairment of remembering non-current feelings, and a person's belief that he/she cannot experience pleasure, rather than the loss of pleasure itself. As neurological bases for avolition, decreases in reward expectancy, value representation, and the behavior to seek uncertain reward were observed, which resulted in poor social functioning due to the difficulties of initiating adaptive behaviors for the future. These impairments are the bases of decreased intrinsic motivation. The negative symptoms were considered to result in poor social functioning mediated by neuro-and social cognitive dysfunction and dysfunctional cognition, such as low self-efficacy and self-stigma. Pharmacotherapy for negative symptoms remains to be established due to a lack of evidence. Several psycho-social interventions in self-efficacy, self-stigma, intrinsic motivation, and environmental contexts are now being developed, while their effects are rather limited. The principles of psychiatric rehabilitation, i.e., respecting one's own value system and preference, self-determination, and motivation, are worth revisiting from the viewpoint of neuro-cognitive science. Furthermore, a hope-oriented approach, the presence of peers, and reconstructing social values as barrier-free may be considered to be of marked help not only for treating negative symptoms through re-establishing self-esteem, but also to aid the general population.


Subject(s)
Anhedonia/physiology , Recovery of Function/physiology , Schizophrenia/therapy , Schizophrenic Psychology , Social Adjustment , Humans , Psychiatric Status Rating Scales
13.
Psychiatry Clin Neurosci ; 69(12): 773-81, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26129706

ABSTRACT

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.


Subject(s)
Facial Expression , Facial Recognition/physiology , Memory, Short-Term/physiology , Schizophrenia/physiopathology , Schizophrenic Psychology , Social Perception , Adult , Case-Control Studies , Female , Humans , Japan , Male , Metacognition , Middle Aged , Neuropsychological Tests , Regression Analysis , Theory of Mind , Verbal Learning
15.
Seishin Shinkeigaku Zasshi ; 117(11): 910-7, 2015.
Article in Japanese | MEDLINE | ID: mdl-26901891

ABSTRACT

Persons with schizophrenia and their families have strong interests and hopes for love, marriage, pregnancy, and child-rearing. These experiences often lead to recovery from schizophrenia. There are many partners with schizophrenia who enjoy fruitful lives even with their disability. However, only some persons can enter into such lives in the real world in Japan and other countries. This leads persons with schizophrenia to develop a discouraged and disappointed attitude, and also causes professionals of mental health to develop indifference or pessimism about these issues. Schizophrenics are thought to have interests in love and sexual behavior just as strong as the general population. I discuss with my patients about these issues and working life early in the course of treatment. Because they lose their chance to learn adult behavior in social lives with peers due to the beginning of schizophrenia, they need an opportunity to participate in a social situation to learn knowledge and skills of dating and related behaviors, and systematic education such as psycho-education and social skills training should be provided. Continuing married life and child-rearing require more support from experts with rich experience and knowledge. Psychiatrists are required to participate in shared decision-making about medication during pregnancy and breast-feeding, as well as provide knowledge on the benefits and risks of antipsychotics. Net-working with the family, professionals of child welfare, and the community is necessary to support child-rearing. Urakawa Bethel's House was introduced as a pioneering concept to support love, marriage, and child-rearing. Finally, professionals' negative or indifferent attitudes toward these issues are discussed in the setting of treatment. I hope that professionals of mental health will think about these issues from the standpoints of persons with schizophrenia and their families.


Subject(s)
Child Rearing/psychology , Disabled Persons/psychology , Disabled Persons/rehabilitation , Love , Marriage/psychology , Schizophrenia/rehabilitation , Schizophrenic Psychology , Social Support , Adult , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Physician's Role , Pregnancy , Psychiatry , Young Adult
16.
Psychiatry Clin Neurosci ; 68(9): 701-11, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24612235

ABSTRACT

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.


Subject(s)
Cognition Disorders/diagnosis , Cognition Disorders/psychology , Schizophrenia/diagnosis , Schizophrenic Psychology , Social Behavior , Surveys and Questionnaires/standards , Adult , Asian People/psychology , Case-Control Studies , Female , Humans , Japan , Male , Sample Size , Young Adult
17.
Psychiatry Clin Neurosci ; 68(6): 425-31, 2014 Jun.
Article in English | MEDLINE | ID: mdl-24506576

ABSTRACT

AIM: Methods to improve neurocognitive impairments are of important research interest. This study sought to examine the synergistic effects of neurocognitive rehabilitation and antipsychotics for schizophrenia. METHODS: Subjects were 43 patients diagnosed with schizophrenia or schizoaffective disorder in a randomized trial of the effects of neurocognitive rehabilitation or a quasi-randomized experimental trial of supported employment with neurocognitive rehabilitation. We compared the effects of risperidone and aripiprazole in neurocognitive rehabilitation for schizophrenia. Subjects were divided into the following groups: (i) the control-risperidone group (CR group) (n = 13); (ii) the rehabilitation-risperidone group (RR group) (n = 9); (iii) the control-aripiprazole group (CA group) (n = 10); and (iv) the rehabilitation-aripiprazole group (RA group) (n = 11). Subjects in the rehabilitation group were engaged in computer-based cognitive exercises (24 sessions) with bridging group (12 sessions) over 12 weeks. Psychiatric symptoms, neurocognitive functioning and social functioning assessments were evaluated at baseline and at 12 weeks. RESULTS: A two-way anova with neurocognitive rehabilitation and antipsychotic medication as factors revealed a significant interaction effect on motor speed. Working memory and motor speed significantly improved in the RA group compared with the CA group. We found no significant improvements between the CR group and the RR group. CONCLUSION: A synergistic effect of neurocognitive rehabilitation and aripiprazole was observed as improvement of motor speed. In patients treated with aripiprazole, neurocognitive rehabilitation appeared to improve working memory and motor speed. Further studies of synergistic effects of neurocognitive rehabilitation and antipsychotic medication are necessary to verify these findings.


Subject(s)
Antipsychotic Agents/therapeutic use , Cognition Disorders/drug therapy , Cognition Disorders/rehabilitation , Piperazines/therapeutic use , Quinolones/therapeutic use , Risperidone/therapeutic use , Schizophrenia/drug therapy , Schizophrenia/rehabilitation , Adult , Aripiprazole , Cognition Disorders/etiology , Drug Synergism , Female , Humans , Male , Middle Aged , Neuropsychological Tests , Psychiatric Status Rating Scales , Schizophrenia/complications , Schizophrenic Psychology , Social Behavior , Young Adult
18.
Int J Psychiatry Clin Pract ; 18(1): 63-9, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24047425

ABSTRACT

OBJECTIVE: The course of neurocognitive deficits in schizophrenia has not yet been established. Therefore, we followed patients with first-episode schizophrenia to verify the course of these deficits. METHODS: In Study 1, tests of neurocognitive functioning were administered to patients with first-episode schizophrenia (FE group) every 6 months. Of the 26 patients who completed the baseline assessment, 19 completed a 6-month follow-up, and 13 completed a 1-year follow-up. In Study 2, 19 patients in FE group at 6-months when the neuropsychological measures was less influenced by psychotic symptoms and other patients who experienced schizophrenia 5-years earlier (5-year group) were compared. RESULTS: In Study 1, verbal memory, motor speed, and executive functions significantly improved at the 1-year follow-up. In Study 2, patients in 5-year group performed worse in verbal memory and executive functions than patients in FE at 6-month group, but marginally but significantly better in verbal fluency. CONCLUSIONS: Verbal memory, executive functions, and verbal fluency were significantly different between 5-year group and FE at 6-month group, and may indicate progression of schizophrenia. Executive functions may reflect the state of psychosis. Working memory and processing speed which did not change significantly from onset are needed to verify the course in further research.


Subject(s)
Cognition/physiology , Disease Progression , Schizophrenia/physiopathology , Schizophrenic Psychology , Activities of Daily Living , Adolescent , Adult , Analysis of Variance , Executive Function/physiology , Follow-Up Studies , Humans , Memory/physiology , Middle Aged , Neuropsychological Tests/statistics & numerical data , Psychiatric Status Rating Scales/statistics & numerical data , Psychomotor Performance/physiology , Recurrence , Social Adjustment , Verbal Behavior/physiology , Young Adult
19.
Seishin Shinkeigaku Zasshi ; 115(6): 570-85, 2013.
Article in Japanese | MEDLINE | ID: mdl-23944115

ABSTRACT

Measuring social functioning of schizophrenics is becoming an important clinical issue in the era of community care, where persons with mental illness can live in the community. Neuro- and social-cognitive function studies on the outcome of schizophrenia focus on researching brain functioning, and social functioning is a co-primary outcome measure of intervention. In this review, the viewpoint of measuring social functioning is clarified, typical and recommended assessment scales are introduced, methods to be developed for measurement are discussed, and how to measure social functioning in clinical and research settings is summarized. The axes of classifying measures include functional capacity/real-world functioning, subjective/objective evaluation, and rating/observing behaviors. Six social functioning scales were chosen as recommended scales in the study of real-world functioning as a co-primary measure in NEMH-MATRICS. Almost all scales are objective rating with the interviewing of informants. The functional capacity or competence is evaluated in performance tasks. While the scale of processing tasks of everyday functioning (UPSA) was recommended in many studies, there is no standard for assessing social skills or social problem-solving skills, because these skills differ greatly depending on the sex, age, and culture. Intervening variables among neuro/social cognitive functioning, functional capacity, and real-world functioning are intrinsic motivation, meta-cognition, self-efficacy, expected support, and the environment and support which might decrease the association of basic cognition and the functional outcome. In a clinical setting, these intervening variables, hope and subjective evaluation of support needs, and life history regarding the previous capacity are needed as well as assessment scales to develop a plan for intervention. Objective assessment scales are useful for measuring the effects of intervention.


Subject(s)
Schizophrenia/diagnosis , Social Adjustment , Cognition/physiology , Humans , Neuropsychological Tests , Schizophrenia/physiopathology , Schizophrenic Psychology
20.
Article in English | MEDLINE | ID: mdl-24600481

ABSTRACT

BACKGROUND: In Japan, Job assistance for SMI have been not active. Compared with mental retardation, employment rate of SMI was low. The needs of the effective job assistance for SMI are growing. The purpose of this study was to determine the effectiveness of the combination approach of Cognitive Remediation (CR) and Supported Employment (SE) in clinical outcomes, including cognitive functioning and psychiatric symptoms besides vocational outcomes. METHODS: The participants diagnosed with schizophrenia or schizoaffective disorder were assigned to CR+SE group (n=52) and SE group (n=57). CR comprised computer based trainings using COGPACK and group works. SE was individualized vocational support provided by employment specialists. Outcome measures included cognitive functioning, psychiatric symptoms, social functioning, performance of tasks as clinical outcomes, employment rate, duration of employment, and earned wage as vocational outcome. RESULTS: CR+SE group displayed significantly better psychiatric symptoms (F=3.490, p<.10), interpersonal relations (F=11.695, p<.01), and social and cognitive functioning including verbal memory (F=9.439, p<.01), digit sequencing (F=5.544, p<.05), token motor tasks (F=6.685, p<.05), and overall cognitive functioning (F=8.136, p<.01). We did not find any significant difference between two groups in terms of employment rate and earned wage. DISCUSSIONS: This is the first controlled study to determine the effectiveness of CR on vocational outcomes in Japan. The results showed that CR and SE programs were feasible in Japan and that CR using COGPACK had favorable effects on cognitive functioning, psychiatric symptoms, and social functioning, which is consistent with previous researches.

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