Cognitive function of remitted schizophrenia patients and their first-degree non-psychotic relatives / 重庆医学

Objective To explore difference of neuropsychological tests between the remitted schizophrenia patients and the first-degree non-psychotic relatives of schizophrenia patients,and to explore the possible endophenotypes in cognitive function.Methods The MATRICSTM consensus cognitive battery was administered to 86 remittent schizophrenia patients (the patient group),86 first-degree non-psychotic relatives of schizophrenia patients (the relative group),and 86 healthy people (the control group).Results Compared with the control group,the patients group and the relative group showed poor performance on trail making test,brief assessment of cognition,hopkins verbal learning,mazes,category fluency,emotional intelligence test and continuous performance test (P＜0.05).There were significantly lower performances in the patient group than the relative groups on hopkins verbal learning,mazes,emotional intelligence test and continuous performance test (P＜0.05).Conclusion The remitted schizophrenia patients and their first-degree non-psychotic relatives have selective deficits in cognition function,among them,verbal leaning,attention/vigilance,reasoning and problem solving and social cognition may be potential endophenotypes for schizophrenia.

Preliminary study of reliability and validity of the Chinese version of Fagerstrom Test for Nicotine Dependence scale in smoking male in-patients with schizophrenia / 中国心理卫生杂志

Objective:To determine the reliability and validity of the Chinese version of Fagerstrom Test for Nicotine Dependence (FrND) scale among smoking male inpatients with schizophrenia.Methods:Two hundred and twenty smoking male inpatients,who met criteria for schizophrenia of Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition (DSM-Ⅳ),were consecutively included.FTND scale and Russell's Reasons for Smoking Questionnaire (RRSQ) were used to assess subjects'severity of nicotine dependence and addiction score of the dimension of reason for smoking,respectively.According to the principle of voluntariness,37 subjects were selected and re-assessed with FTND scale after two-week interval.Reliability,correlation and factor analyses were used to examine the reliability and validity.Results:The Cronbach α (internal consistency) and two-week re-test reliability coefficients of FTND scale were 0.68 and 0.72 (P ＜0.01),respectively.The criterion related validity coefficient with addiction score of RRSQ was 0.53 (P ＜0.01).Two common factors were abstracted from the scale factor analysis,accounting for 52.4％ of the total variance.There were statistically significant differences between patients with different duration of illness,number of hospitalizations and age of smoking initiation (P ＜0.05).Conclusion:The Chinese version of FTND scale for smoking male inpatients with schizophrenia has a relatively low internal consistency and good re-test reliability,criterion related validity,construct validity and empirical validity.

Comparative study of neurological soft signs in remittent schizophrenia and non-psychotic first-degree relatives / 中国神经精神疾病杂志

Objective To examine the difference of neurological soft signs (NSS) among the remittent schizophrenia patients,first-degree non-psychotic relatives of schizophrenia patients and healthy controls.Methods The Cambridge Neurological Inventory (CNI) (the Chinese version) was administered to 86 remittent schizophrenia patients (patient group),86 first-degree non-psychotic relatives of schizophrenia patients (relative group) and 86 healthy controls (control group).Results Compared with relative group,NSS total-score,the subscore of motor coordination and sensory integration were significantly higher in patient group (P＜0.01).Compared with control group,NSS total-score,the subscore of motor coordination and sensory integration were significantly higher in patient group (P＜0.01).Compared with control group,NSS total-score and the subscore of motor coordination were significantly higher in relative group (P＜0.01).Conclusions The levels of NSS in remittent schizophrenia patients and their first-degree non-psychotic relatives are higher than normal control,and the patients have more NSS than their relatives.The motor coordination nay be a potential endophenotype for schizophrenia.