Validation of the Multidimensional Schizotypy Scale-Brief in Two Large Samples

This study reports on an initial examination of the construct validity of the Multidimensional Schizotypy Scale-Brief (MSS-B) and the first investigation of its psychometric properties outside of its derivation samples. The MSS-B contains 38 items that assess positive, negative, and disorganized schizotypy and has comparable content coverage and psychometric properties as the original 77-item Multidimensional Schizotypy Scale. Two large samples (n?=?1430 and 1289) completed the MSS-B, as well as measures of schizotypal personality traits and the Five-Factor Model of Personality. MSS-B scores were computed from the full-length scale in sample 1, whereas participants in sample 2 were administered the MSS-B. The psychometric properties and intercorrelations of the MSS-B subscales were consistent with findings from the original derivation samples, with no shrinkage in reliability. In terms of relations with schizotypal traits, the MSS-B positive schizotypy dimension had its strongest association with cognitive-perceptual schizotypal traits, MSS-B negative schizotypy had its strongest association with interpersonal schizotypal traits, and MSS-B disorganized schizotypy had its strongest association with disorganized schizotypal traits. The schizotypy dimensions were characterized by hypothesized patterns of distinct associations with the Five-Factor Model. The present findings are consistent with results from the full-scale MSS.     

Religious experience,religious orientation and schizotypy

The present study examined the relationship between religious orientation and schizotypy, with the prediction that intrinsic religiosity would be negatively associated with schizotypy, and religious experience and extrinsic religiosity would be positively associated with schizotypy. A total of 308 UK adults (132 men; 176 women) completed measures of religious experience, intrinsic orientation towards religion, extrinsic orientation towards religion, schizotypal personality traits and borderline personality. Though the present findings also suggest that the significant relationships between religiosity and schizotypy traits are fragmented, particularly by sex, the findings are consistent with theory that an intrinsic orientation towards religion is associated with lower levels of schizotypy, and religious experience and an extrinsic orientation towards religion is associated with higher levels of schizotypy.     

Do sex differences in emotionality mediate sex differences in traits of psychosis-proneness?

The aim of the study was to determine if sex differences in emotionality might account for sex differences in distinct traits of proneness to psychosis (or "schizotypy"). Females report higher levels of "positive" schizotypy (e.g., magical thinking) than males, along with a tendency toward greater schizotypal disorganisation, whereas males report higher levels of "negative" schizotypal traits, such as social anxiety (Jackson & Claridge, 1991; Raine, 1992). Given the affect-oriented nature of "negative" schizotypal traits, we tested the hypothesis that higher levels of "negative" schizotypy among males would be accounted for by more general sex differences in emotionality; that is, by less frequent and less intense emotional experiences. A total of 81 student participants were administered the Cognitive-Perceptual Deficits, the Disorganisation, and the Interpersonal Deficits components of Raine's (1991) Schizotypal Personality Questionnaire (SPQ), indexing respectively, "positive" schizotypy, schizotypal disorganisation, and "negative" schizotypy. Frequency of emotional experience was assessed using the Emotionality subscale (Buss & Plomin, 1984) and intensity, the Affect Intensity Measure (Larsen & Diener, 1987). As predicted, males scored significantly higher than females on the SPQ Interpersonal Deficits component but no sex differences emerged for the other two components. Males reported significantly less intense, although not less frequent, experiences than females. A reduced intensity of positive emotions in particular was found to mediate the sex difference in "negative" schizotypy. Our results suggest that a less intense experience of positive affect might contribute to males' propensity to develop negative symptoms should a schizophrenic breakdown occur.     

学生感知的教师欺凌态度与学生欺凌行为的关系——学生欺凌态度的中介作用及其性别的调节作用

校园欺凌严重影响青少年身心的健康发展,教师是预防和干预校园欺凌的重要力量。本研究拟在考察学生感知的教师欺凌态度与学生欺凌行为关系的基础上,探究学生欺凌态度的中介效应以及性别的调节作用。本研究采用《校园欺凌量表》、《学生欺凌态度量表》以及《学生感知的教师欺凌态度量表》对来自北京市两所初中的698名初一和初二学生进行测查。结果显示:(1)初中男生总体及不同类型的欺凌行为及其欺凌态度均显著高于女生,而女生所感知的教师欺凌严重性态度则显著高于男生;(2)学生感知的教师欺凌严重性态度显著负向预测学生欺凌行为;(3)学生欺凌态度在学生感知的教师欺凌态度和学生欺凌行为之间起部分中介作用;(4)学生欺凌态度的中介效应存在显著性别差异,男生欺凌态度为部分中介作用,而女生欺凌态度为完全中介作用。     

Religion and mental health among Hindu young people in England

The aim of this study was to explore the relationship between mental health and attitude toward their religious tradition among a sample of 330 young people attending the Hindu Youth Festival in London. The participants completed the Santosh–Francis Scale of Attitude toward Hinduism together with the abbreviated form of the Revised Eysenck Personality Questionnaire which provides measures of neuroticism and psychoticism. The data indicated that a more positive attitude toward Hinduism was associated with lower psychoticism scores but unrelated to neuroticism scores. There is no evidence, therefore, to associate higher levels of religiosity with poorer mental health among young people within the Hindu community.     

An investigation of schizotypy in injecting amphetamine users

A fully dimensional view of psychiatric disorder conceptualises schizotypy as both a continuous personality trait and an underlying vulnerability to the development of psychotic illness. Such a model would predict that the structure of schizotypal traits would closely parallel the structure of schizophrenia or psychosis. This was investigated in injecting amphetamine users (N = 322), a clinical population who have high rates of acute psychotic episodes and subclinical schizotypal experiences. Schizotypy was assessed using the Oxford-Liverpool Inventory of Feelings and Experiences (O-LIFE), and psychotic symptoms were assessed using the Brief Psychiatric Rating Scale (BPRS). Using confirmatory factor analysis, O-LIFE subscale scores were mapped onto latent variables with their more clinical counterparts from the BPRS. A four-factor model comprising positive schizotypy, disorganisation, negative schizotypy, and disinhibition provided the best model fit, consistent with prior research into the structure of schizotypy. The model provided a good fit to the data, lending support to the theory that schizotypy and psychotic symptoms map onto common underlying dimensions.     

The moderating role of early traumatic experiences on the association of schizotypal traits with visual perception

The findings on the association of schizotypal traits with the perception of visual illusions are scarce and inconsistent and have not taken into consideration potential effects of childhood traumatic experiences, a risk factor for schizophrenia-spectrum conditions. Thus, the present study addressed the question of potential moderating effects of early traumatic experiences on the association between different aspects of schizotypal traits with the perception of the Müller-Lyer and Navon's Hierarchical Letters (NHL) illusions. The study revealed that (a) increased suspiciousness was associated with increased liability to the Müller-Lyer illusion, when the exposure to traumatic events was high, whereas the opposite pattern was true when the exposure to traumatic events was low; (b) negative schizotypy was associated with more accurate global perception, and high disorganized schizotypy was associated with superior accuracy when target letters were present during the NHL illusion, when early traumatic experiences were at lower levels; and (c) high negative, disorganized, and total schizotypy were associated with lower accuracy when target letters were present in the NHL paradigm, when early traumatic experiences were at higher levels. The findings of the study suggest that early traumatic events differentially moderate the relationship between various aspects of schizotypal traits and visual perceptual processing.     

Logical reasoning in schizotypal personality

It was examined whether psychotic-like personality traits in a sample of 205 college students could predict logical reasoning deficits, akin to those seen in schizophrenia. The participants were tested on their ability to assess the logical validity of premises (Logical Reasoning Task), and completed a multi-dimensional schizotypy inventory (O-LIFE). Low accuracy was associated with increased levels of disorganized schizotypy (‘Cognitive Disorganization’), while elevated errors were associated with increased levels of positive (‘Unusual Experiences’), negative (‘Introvertive Anhedonia’) and impulsive (‘Impulsivity Non-conformity’) schizotypy. Nevertheless, multiple regression analyses revealed that negative schizotypy was retained as the only significant predictor after performance was corrected for random guessing, and the contribution of the average amount of time spent on each premise was controlled. The results suggest that, although most schizotypy dimensions have a detrimental effect on reasoning performance, possibly due to disadvantageous test-taking strategies, negative schizotypy is the most reliable predictor of logical reasoning deficits. It is proposed that social/interpersonal schizotypal traits, like negative symptoms of schizophrenia, are accompanied by deficient executive functions of working memory, which appear to undermine, inter alia, logical reasoning processing.     

Six Subclinical Spectrum Traits in Normal Creativity

In this article, I explore conceptual and empirical connections between schizophrenia, schizotypy, psychotic-like traits, affective symptoms, and creativity. The focus is on 6 symptom-like characteristics: (a) positive schizotypal cognitive symptoms, (b) negative schizotypal cognitive symptoms, (c) negative schizotypal affective symptoms (flat affect), (d) hypomania, (e) depression, and (f) impulsivity. Attention is directed at research differentiating the cognitive symptoms associated with the schizophrenia spectrum from those of the core affective disorders, as well as distinguishing schizophrenic-like flat affect from depression. I present data on relations between paper-and-pencil measures of creativity and scales of subclinical deviant traits. I also discuss the importance of distinguishing creativity and eminence in different professional fields, artistic media, and genres, as well as the conceptual relation between continuous trait views of genius and madness and the temporal dynamics of the creative process.     

Spirituality and Health Outcomes in the Elderly

The purpose of this mail survey was to examine the relationship of attitudinal and behavioral measures of spirituality to physical and mental health outcomes in a sample of elderly community residents. Frequency of prayer, importance of faith, and reliance on religion for their coping were compared for their association with eight categories of physical and mental health. All three measures, prayer, faith and religious coping, correlated strongly with positive mental health, but not with the other seven physical health categories. Multiple regression analyses indicated importance of one's faith had the strongest association with positive mental health, even after controlling for the effect of other significant variables, age and education. The behavioral measure of prayer was a component of importance of faith to mental health, with no independent impact. This study highlights attitudes rather than practices, as the stronger spiritual variables related to mental health in the elderly.     

Genetically based correlates of serum oxytocin and testosterone in autism and schizotypy

The hormones oxytocin and testosterone have been implicated in autism spectrum and schizophrenia-spectrum cognition and disorders, but their roles in mediating these psychological phenotypes remain largely unknown. We genotyped a large set of healthy individuals for loci that represent established genetic indicators of serum testosterone and oxytocin levels, and tested for associations of these genetic indices of hormone levels with self-report measures of autistic and schizotypal cognition. A low genetic index of testosterone, a high genetic index of oxytocin, and/or a low ratio of testosterone to oxytocin indices were positively correlated with high imagination (by the Autism Quotient) and high positive and total schizotypy (by the Schizotypal Personality Questionnaire). The genetic indices for oxytocin, and testosterone relative to oxytocin, also showed significant correlations with a metric of positive schizotypy relative to autism, implicating higher oxytocin and lower testosterone in increased positively-schizotypal traits combined with decreased autism-associated traits. These results link genetic indicators of serum hormone levels with measures of schizotypy and autism among healthy individuals.     

A biometrical study of schizotypy in a normal population

A recently devised two-scale questionnaire (STQ) for measuring ‘borderline’ personality traits, together with the EPQ, was administered to 108 monozygotic and 102 dizygotic adult twin pairs. Initial item and scale analyses of the STQ indicated good internal consistency and acceptably high endorsement frequencies for individual items, as well as an absense of any marked skew in the scale distributions. The pattern of correlations with the EPQ closely resembled that seen in earlier, smaller-sized studies, the most notable feature being a positive correlation between the borderline scales and the N-scale. Biometrical analysis of the data suggested that, for the main STQ scale (‘schizotypal personality’), the best-fitting model was one assuming additive genetic variation combined with within-family environmental effects: results for the other (‘borderline personality’) scale were less clear cut. A number of sex differences were also observed: males had lower schizotypy scores than females, while the biometrical analysis suggested that schizotypy may be under greater genetic control in males than in females. The data are presented and discussed in the context of the dimensional/biological theory of disposition to psychosis.     

智力水平与人格类型特征对高中生学业负担态度形成的影响

以829名高中生为对象,对“瑞文标准推理测验”、“加利福尼亚人格调查表”和“中学生学业负担态度量表”的测试数据进行聚类分析和F检验,探讨学生智力水平与人格类型特征对其学业负担态度形成的影响。结果显示,不同智力水平学生对待学业负担的态度无显著差异,但积极进取型学生与固执冲动型及消极退缩型学生间的差异显著。积极进取的人格类型特征有助于形成学生对待学业负担的积极态度,而消极人格类型特征导致学生对待学业负担更为消极的态度。     

An investigation into the relationships between convergent and divergent thinking, schizotypy, and autistic traits

This study explored the relationships between positive and negative schizotypy, convergent and divergent thinking, and autistic traits within the normal population. Seventy-seven students at Oxford University completed tasks to assess divergent and convergent thinking, and completed questionnaires to measure schizotypy and autistic tendencies. Evidence for relationships between negative schizotypy, autistic traits, and convergent thinking was found, but the expected association between positive schizotypy and divergent thinking was not replicated. These findings are discussed in the context of a cognitive inhibition theory of creativity.     

Handedness, emotional problems, and schizotypy

The purpose of this study was to analyse the relationship between emotional or behavioural problems and schizotypy. An assessment of handedness and schizotypal personality traits were also performed by means of the Thinking and Perceptual Style Questionnaire, the Multidimensional Schizotypal Traits Questionnaire, the Edinburgh Handedness Inventory, and the Youth Self-Report. The sample comprised 296 participants with a mean age of 13.8 and a standard deviation of 1.34. Data indicate that adolescents with high scores on psychometric factors of schizotypy displayed higher patterns of problem behaviours as well as a significant difference in all the core factors of the Youth Self-Report, compared to those who scored low on these measures. Discriminant analysis showed that the core factors of the Youth Self-Report correctly classified 84% of the adolescents with high or low scores on psychometric schizotypy. Lastly, no significant association between the factors of schizotypy and left-handedness, right-handedness, or mixed-handedness was found.     

Skilled help for mental health concerns: comparing the perceptions of Catholic priests and Catholic parishioners

This brief pilot study explored associations between religious attachment (RA) and schizotypy in a nonclinical Christian sample (N = 96). Participants responded to questionnaires assessing the above constructs, as well as adult attachment and neuroticism. Religious attachment accounted for 15.2% of the variance in cognitive schizotypy. Anxious religious attachment uniquely predicted cognitive schizotypy, while its effects on other schizotypy traits were accounted for by adult attachment effects. Schizotypy research may benefit from considering attachment relationships in the religious domain. Should our findings be extended and replicated, they may aid the development of interventions, tailored for specific religious populations, which could improve treatment outcomes for schizotypal or schizophrenic individuals.     

The Relationship Between Nonclinical Schizotypy and Handedness on Divergent and Convergent Creative Problem-Solving Tasks

Previous research indicated a relationship between hemispherical dominance, the extent of schizotypal tendencies, and creativity. Little research has been conducted to assess the degree of schizotypy in nonclinical samples. The aim of this study was to determine the extent to which measures of multidimensional schizotypy and predominant handedness could predict measures of creativity, as assessed by both divergent and convergent tasks. One hundred and twenty-six participants participated in a quasi-experiment involving tests of predominant handedness, schizotypal tendencies, and divergent and convergent thinking. Results suggest that individuals who scored high on a test for schizotypal tendencies performed better on divergent problem-solving tasks, as opposed to low scoring individuals who performed better on convergent problem-solving tasks. Furthermore, results suggest that there was relationship between handedness on divergent and convergent thinking. There was, however, a relationship between handedness (right hemisphere) on the degree of schizotypal tendencies with left-handed individuals demonstrating greater schizotypal tendencies.     

工作-家庭中心性与延迟退休态度的关系研究

延迟退休态度是影响新退休政策推行的重要社会心理因素。本研究采用《延迟退休态度问卷》等工具,抽取450名临近退休员工,考察工作-家庭中心性与延迟退休态度的关系以及工作投入、组织支持感在其二者关系上的作用机制。研究发现：（1）临近退休员工对延迟退休的态度较为消极。（2）低组织支持感条件下,工作投入在工作-家庭中心性与延迟退休态度之间起到完全中介作用。低组织支持感不利于缓解家庭中心性员工对延迟退休的消极态度。（3）高价值认同条件下,家庭中心性与工作投入、延迟退休态度的正向关系弱化。给予员工高价值认同可以提升对延迟退休的积极态度。高关心利益也可缓解家庭中心性员工对延迟退休的消极态度。     

Schizotypy and verbal memory in the adolescent general population

The following study examines the relationship between verbal memory deficits and schizotypal traits measured psychometrically from a non- clinical adolescent population. In this transversal analytical study participated 139 subjects. They were secondary school students, with ages ranging from 13 to 16 years old (mean= 14, 35; Sta.Dev.= 0, 548). After administrating the scales O-LIFE (psychometrical schizotypy), CVLT (verbal memory), and Letters and Numbers subtest of WAIS-III (working memory), data was analyzed utilizing Pearson correlations and mean comparison test. Results showed lack of relations between schizotypy measures and working memory. Nonetheless, some of the O-LIFE dimensions correlated with verbal memory. These findings support partly the literature reviewed. Yet, more work focused on schizotypy and cognitive deficits as risk factors are suggested.     

Religiosity, schizotypal thinking, and schizophrenia

The relationship between religiosity and the incidence of schizotypal thinking was investigated in a normal sample and in acute and chronic schizophrenic samples. The Rust Inventory of Schizotypal Cognitions was administered to measure schizotypal thinking, and two religiosity measures were developed. Religiosity had a significantly negative relationship with schizotypal thinking in normal subjects, while in schizophrenic patients the relationship was positive and significantly different. It is suggested that the process of existential growth of awareness in the normal development of religious belief, which is thought to be associated with schizotypal thinking, may have proceeded differently in persons suffering from schizophrenia.