应征公民心理选拔的人格评估

应征公民人格评估的目的是对精神分裂症病前人格特征进行预测性评价。采取定性与定量两种研究方法编制征兵专用人格问卷,并对其进行指标验证。结果发现：①量表应答得分区间可较好地区分正常新兵与精神分裂症被试;②二阶因子分析将人格分量表部分划分为3个维度8个因子;③精神分裂症患者人格分量表分数各指标均显著高于正常新兵;④总预测符合率和预测合格符合率均在98%以上,预测淘汰符合率最低为70.13%。上述结果表明,本研究编制的中国士兵人格问卷（CSPQ）具有良好的信度和效度,适用于我国应征公民心理检测以及我军士兵的人格测试     

Span of apprehension in schizophrenic patients as a function of distractor masking and laterality.

Twenty schizophrenic patients, 10 depressed control patients, and 20 normal control subjects were compared in a forced-choice, target-detection method for assessing the span of apprehension. The detection task required the subject to report which of 2 target letters was presented among 7 other (distractor) letters. Performance accuracy was examined as a function of target location and whether the distractor letters were masked after their presentation. The backward masking of the distractors improved target-detection accuracy of both control groups but reduced accuracy of the schizophrenic group. In addition, schizophrenics performed particularly poorly on targets located in the left half or lower half of the display. These results suggest that response to the masking of distractors may be a new index of attentional shortcoming in schizophrenia. Various theoretical explanations for the target location findings are also discussed.     

Interocular transfer of movement after-effects in schizophrenia.

A group of 16 chronic schizophrenic subjects were compared with 15 age-matched control subjects for interocular transfer of movement after-effects. Contrary to the hypothesis that schizophrenic subjects would show a deficit on this measure schizophrenics showed increased transfer compared to the controls. This effect is not due to response perseveration and is not correlated with length of hospitalization, age or dose of antipsychotic drugs. It is suggested that the effect reflects a deficit in 'inhibitory processes' in schizophrenia.     

What is perseverated in schizophrenia? Evidence of abnormal response plasticity in the saccadic system

Although perseveration is sometimes attributed to defective set switching, the authors have recently shown that set-switching is normal in schizophrenia. In this article, the authors tested for persistent states of the saccadic response system, rather than set perseveration. Schizophrenic and healthy subjects performed antisaccades and prosaccades. The authors analyzed for 3 carry-over effects. First, whereas the latency of the current saccade correlated with that of the prior saccade in both groups, the correlations under mixed-task conditions declined in healthy but not in schizophrenic subjects. Second, antisaccades in penultimate trials delayed upcoming saccades in schizophrenic but not in healthy subjects. Third, schizophrenic subjects were more likely to erroneously perseverate the direction of a prior antisaccade but not a prior prosaccade. The authors concluded that, in schizophrenia, the effects of correct antisaccades are persistent not weak. Saccades in schizophrenia are characterized by perseveration of antisaccade-induced changes in the saccadic response system rather than failures to switch task set.     

Sustained attention in children at risk for schizophrenia: Findings with two visual continuous performance tests in a new sample

In partial replication of an earlier study, 35 children at high risk for schizophrenia, 25 children at high risk for affective disorder, and 53 normal control children from a new sample of 7- to 12-year-old subjects were tested with two new visual continuous performance tests. Response levels and intrasubject variability were analyzed separately. Multivariate analyses on factor scores derived from response levels indicate that "groups" is a significant predictor for a factor reflecting discriminability (or sensitivity) for the more difficult of these tests but not for the less difficult one, and that high risk for schizophrenia is associated with lower performance. Factor scores and multiple regression analyses were used to dichotomize subjects as to whether or not they are low performance outliers. A significantly larger proportion of subjects from the high risk for schizophrenia group than from the control groups were low performance outliers. Among subjects that developed psychopathology in adolescence, subjects at high risk for schizophrenia were more likely to have contributed low performance outliers early during childhood.     

A comparison of implicit memory tests in schizophrenic patients and normal controls

The objective of the current study was to compare the performance of schizophrenic patients and normal controls on implicit memory tests. Two neuropsychological tasks were administered to 29 patients and normal participant samples. The implicit tests were: Word fragment completion and Word production from semantic categories. The priming score was the variable of interest. Priming effects are obtained in normal subjects and schizophrenia patients, regardless of the implicit test used. However, a dissociation in priming between normal and patient groups was observed, depending on the test used. For word fragment test, priming was identical between the two groups. However, for word production, priming obtained in schizophrenics was lower than priming in normal controls. Results confirm a dissociation effect in implicit memory tests. These results could be explained in the context of the Roediger and Blaxton (1987) distinction between data-driven and conceptually-driven processing. This evidence suggests that a complete neuropsychological assessment of memory in schizophrenia should include different kinds of implicit memory tests (procedural, perceptual, and conceptual tasks).     

Long-term effect of prefrontal lobotomy on verbal fluency in patients with schizophrenia

OBJECTIVE: This study investigated the long-term effects of bilateral prefrontal leukotomy on lexical abilities in schizophrenia subjects. METHOD: we compared performances of leukotomized (LSP), non-leukotomized schizophrenia patients (NLSP) and normal controls, using a test of verbal fluency. Multiple case and triple comparison design were implemented. i.e., the performance of each LSP was compared to that of NLSP and that of a normal control. The sample consisted of four LSP, four NLSP, and four normal subjects. Subjects were matched in sex, age, handedness, and schooling. In Addition, schizophrenia groups were matched in diagnosis and years of hospitalization. Quantitative and qualitative analyses of generated words and errors produced by subjects were carried out. RESULTS: A deficiency in both groups of schizophrenia was observed, although a better performance in LSP patients was detected. CONCLUSION: Intact Lexical ability in LSP indicates its poor relation to the frontal lobe.     

Communication Efficiency in Couples With and Without a Schizophrenic Offspring

A new, experimental method was developed to study language and communication in schizophrenia, employing the device of a map task. Two subjects are given what they believe are identical maps. Subject A is called upon to explain a route to Subject B, whose map has, in fact, an additional street marked on it. Comparing five parent dyads of schizophrenic patients (Group S) with a matched group of five parent dyads of normals (Group N), both groups performed equally well on the training route (for which the maps were identical), but on the experimental route, four out of the five Group S couples were unable to solve the problem. (As a side-light, it was learned subsequently that the fifth Group S couple had previously received some family therapy.) Further qualitative analysis was done on the data. The results have stimulated additional research using this experimental approach.     

A taxometric analysis of cognitive and neuromotor variables in children at risk for schizophrenia

A taxometric model was applied to detect a subgroup or taxon of children conjectured to be at highest risk for developing schizophrenia or related disorders in a sample of offspring of schizophrenic, depressed, and normal parents. Measures of cognitive and neuromotor performance in childhood were used as indicator tests in the analyses. A taxon consisting chiefly of children of schizophrenic parents was detected. Forty-seven percent of those children were assigned to the taxon, compared with 16% of the children of depressed parents and 4% of the children of normal parents. Assignment to the taxon is assessed in relation to the current functional status of the subjects in young adulthood.     

Paranoia and Power Anxiety

Several previous studies of paranoid schizophrenia have provided only scattered support for Freud's notion that homosexual wishes and fears are the root of the difficulty. The present study was designed as a partial test of the broader theory that paranoid schizophrenia in men involves severe anxiety over aggression or assertion. The subjects were men and women in three categories: paranoid schizophrenic, nonparanoid schizophrenic, and people without any history of psychiatric trouble. Using a set of TAT cards portraying various situations of anger and aggression, it was found, as predicted, that paranoid schizophrenic men, and only paranoid schizophrenic men, show a defensive response. These findings are discussed in the context of traditional gender roles and other evidence about the paranoid style.     

Exaggerated leftward bias in the mental number line of patients with schizophrenia

Several visuo-motor tasks can be used to demonstrate biases towards left hemispace in schizophrenic patients, suggesting a minor right hemineglect. Recent studies in neglect patients used a new number bisection task to highlight a lateralized defect in their visuo-spatial representation of numbers. To test a possible lateralized representational deficit in schizophrenia, we used the number bisection task in 11 schizophrenic patients compared to 11 healthy controls. Participants were required to orally indicate the central number of an interval orally presented. Whereas healthy subjects showed no significant bias, schizophrenic patients presented a significant leftward bias. Therefore, these results suggest an impairment in higher order representations of the number space in patients with schizophrenia, an impairment that is qualitatively similar to the deficit described in neglect patients.     

Smooth-pursuit eye tracking in first-episode psychotic patients and their relatives.

We wished to determine the specificity of smooth-pursuit eye tracking dysfunction to schizophrenia and the prevalences of dysfunction among functionally psychotic and normal individuals. Therefore, we investigated pursuit tracking in a large sample of psychotic patients, normal subjects, and first-degree relatives (N = 482). Patients were recruited as part of an epidemiological study of first-episode psychosis that used a broadly based referral network to identify all cases in a major metropolitan area over a 2 1/2-year period. Patients received diagnoses of schizophrenia, schizophreniform disorder, psychotic mood disorder, and paranoid or other psychotic disorder based on the third edition of the Diagnostic and Statistical Manual of Mental Disorders (American Psychiatric Association, 1980). The distribution of tracking performance was bimodal for the schizophrenic patients and their relatives, perhaps reflecting major gene action. Moreover, poor tracking ran in families. Pursuit tracking dysfunction was relatively specific to schizophrenic patients and their relatives and occurred infrequently in other psychotic patients and normal subjects.     

Attentional cues in chronic schizophrenia: abnormal disengagement of attention.

Posner's (1980) reaction time (RT) paradigm was used to examine the engagement and disengagement operations of visual selective attention in patients with schizophrenia. In the 1st experiment, 14 medicated, chronic schizophrenic subjects (diagnosed by criteria of the Diagnostic and Statistical Manual of Mental Disorders; American Psychiatric Association, 1987) and 15 age-matched normal control subjects made a speeded response to a target preceded by a valid, an invalid, or no cue. Control subjects showed the expected advantage and disadvantage in RT for valid and invalid cues, which suggests intact engagement and disengagement operations. For schizophrenic patients, valid cues also enhanced RT, but invalid cues did not slow RT. Similar results were found in the 2nd experiment. The failure of unpredictable, invalid cues to inhibit RT in chronic schizophrenia may be related to an abnormality in the disengagement operation of selective attention.     

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.     

Spatial and Selective Attention in the Cerebral Hemispheres in Depression, Mania, and Schizophrenia

Two tachistoscopic tests examining distinct aspects of attention were administered to normal subjects and patients with depression, mania, and schizophrenia. The first examined spatial attentional bias using happy-sad chimeric faces, known to elicit a perceptual bias to the left side of space in normal right-handers provided the right cerebral hemisphere is intact. The second used a lateralized version of the Stroop task, a traditional test of selective attention. Normals showed the expected leftward perceptual bias but showed equivalent susceptibility to the Stroop effect in both visual fields. As previously demonstrated with chimeric faces viewed in free vision, depression and mania were associated with weak and strong biases respectively with schizophrenics showing no bias to either side of space. The relationship between perceptual bias, as assessed by reaction time and absolute performance and the Stroop effect, showed differences according to diagnosis. This may be interpreted as evidence for the dissociability of attentional processes as well as lateralized differences in the pattern of cerebral activation in affective disorders and schizophrenia. The independence of performance variables on these tests in the schizophrenic group points to severe neuropsychological dysfunction.     

Sexualdelinquenz bei Schizophrenie

Studies suggest a complex relationship between schizophrenia and sexually offensive behaviour. This study aimed to preserve first findings of sex offence features and behaviours exhibited by psychotic men in Germany. Furthermore a typology of the schizophrenic offender group was developed. A comparative trial design was used to differentiate the psychotic and non psychotic offender group. A checklist was developed and applied to the records of 64 male restricted hospital order in-patients in Berlin with an index conviction for a contact sex offence against a woman. Social isolation, antisocial behaviour, psychosexual variables and adverse childhood experiences are found for schizophrenic and sexual offenders in general. Different sexual offensive behaviours appeared in the schizophrenic subgroups. Negative symptoms of schizophrenia as well as antisocial traits had a great impact on schizophrenic sexual offending. A heterogeneous group of psychotic offenders can be supposed.     

The role of perceptual laws in the Rorschach test

The purpose of this study is twofold: to ascertain the perceptual deficits in schizophrenic subjects and to test the assumption that the Rorschach is mainly a perceptual task. Forty-eight subjects participated in the study, distributed in six groups of eight subjects each: normals, affective disorders, and four groups of schizophrenics (chronic paranoid, chronic nonparanoid, acute paranoid, and acute nonparanoid). They were given a perceptual test developed by Fernández-Trespalacios, Bermudez, and Luna (1979). Contrary to previous findings, no differences in the perceptual test were found among the groups. In the second part of the study, a group of schizophrenic subjects was given the Rorschach and the perceptual test in a balanced order. Subsequently, subjects in the experimental group were trained in the perceptual laws they had failed. Comparison of the Rorschach protocols obtained before and after this training failed to show any significant differences in the expected direction, thus questioning the perceptual nature of this test. Interestingly, an increase in negative categories of the Rorschach subsequent to the perceptual training was observed.     

Comparison of childhood problem behaviors in boys with subsequent schizophrenic, antisocial, and good adult outcomes

Childhood problem behaviors for 145 boys seen in child guidance clinics were used to compare four adult outcome groups: antisocial men, schizophrenic subjects with good outcomes, schizophrenic subjects with poor outcomes, and subjects with good outcomes. Delinquent and aggressive factor scale scores distinguished the antisocial outcomes from the other groups. A preschizophrenic factor along with lower IQ separated schizophrenics with poor outcome from the others. Subjects with good outcomes had lower scores on factor scales, higher IQ, and less disturbed families. Schizophrenics with good outcomes were the most difficult to identify correctly.     

Schizotypy and sustained attention

We examined sustained attention in 32 schizotypic and 43 normal control subjects from a large, randomly ascertained nonclinical university population. Schizotypy status was determined with the Perceptual Aberration Scale. Sustained attention was measured with the Continuous Performance Test-Identical Pairs. Schizotypic subjects displayed significantly poorer sustained-attention performance than did control subjects, as measured by d and overall hit rate. Although schizotypic subjects evidenced greater levels of anxiety and depression, sustained-attention performance was not significantly associated with these mental state factors. Our results provide evidence for a subtle sustained-attention deficit among schizotypes and are interpreted in light of previous attention research with actual schizophrenic patients as well as children at risk for schizophrenia. Utility of the psychometric high-risk strategy in psychopathology research is discussed.