Cognitive Event-Related Potentials in Neuropsychological Assessment

Neuropsychology is a behavioral approach to studying the brain, and an integration of neuropsychology with on-line processing measures of brain function is important for advancing the understanding of brain–behavior relationships. Cognitive event-related potentials (ERPs) are on-line processing measures that are of interest to neuropsychologists because they are linked to familiar neuropsychological test paradigms and because they have reached a degree of standardization sufficient to make them applicable in individual assessment. A selective review of cognitive ERPs is given, focusing on studies of attention in the oddball paradigm and arguing that an adequate assessment of attention is basic in understanding higher order cognitive functions. General principles for using ERP data to supplement and clarify neuropsychological analysis are discussed, and available evidence on dementia and traumatic head injury is reviewed. It is concluded that ERPs are a useful supplement to neuropsychological assessment. Although diagnostic use of ERPs must be guarded because of limited standardization and validation, information-processing analysis with ERPs may aid significantly in interpretation of behavioral data.     

Depression and Anxiety: Integrating the Tripartite and Cognitive Content-Specificity Assessment Models

The cognitive content-specificity hypothesis proposes that depression and anxiety can be discriminated on the basis of unique cognitive profiles. Alternatively, the Tripartite model suggests that, although depression and anxiety share a general distress factor, anhedonia is a characteristic of depression with anxious arousal a characteristic of anxiety. Past research devoted to integrating these two models has been limited in a number of ways. To remedy these limitations, this study attempted to assess the complete Tripartite model and used a multidimensional cognitive assessment tool to handle the heterogeneity of anxious cognitive content. Results on data collected from 411 clients seeking services at a university counseling center suggested that a one-to-one mapping between Tripartite dimensions and cognitive content was possible. Further, variables from each model simultaneously explained unique variance in depression and anxiety ratings.     

Cognitive assessment: A multibehavior-multimethod-multiperspective approach

Clarifying methodological and assessment issues is fundamental to the further development of cognitive-behavioral approaches. The present work examines potential method confounds in several cognitive assessment techniques (e.g., self-statement inventories, postperformance videotape reconstruction) in light of social psychological research on objective self-awareness. On the basis of this analysis, a conceptual framework is proposed to organize research on the assessment of clinical cognition.     

A Polytomous Model of Cognitive Diagnostic Assessment for Graded Data

Pursuing the line of the difference models in IRT (Thissen &; Steinberg, 1986 Thissen, D., &; Steinberg, L. (1986). A taxonomy of item response models. Psychometrika, 51:567–577. doi:10.1007/BF02295596.[Crossref], [Web of Science ®] , [Google Scholar]), this article proposed a new cognitive diagnostic model for graded/polytomous data based on the deterministic input, noisy, and gate (Haertel, 1989 Haertel, E. H. (1989). Using restricted latent class models to map the skill structure of achievement items. Journal of Educational Measurement, 26, 333–352. doi:10.1111/j.1745-3984.1989.tb00336.x.[Crossref], [Web of Science ®] , [Google Scholar]; Junker &; Sijtsma, 2001 Junker, B. W., &; Sijtsma, K. (2001). Cognitive assessment models with few assumptions, and connections with nonparametric item response theory. Applied Psychological Measurement, 25, 258–272. doi:10.1177/01466210122032064.[Crossref], [Web of Science ®] , [Google Scholar]), which is named the DINA model for graded data (DINA-GD). We investigated the performance of a full Bayesian estimation of the proposed model. In the simulation, the classification accuracy and item recovery for the DINA-GD model were investigated. The results indicated that the proposed model had acceptable examinees' correct attribute classification rate and item parameter recovery. In addition, a real-data example was used to illustrate the application of this new model with the graded data or polytomously scored items.     

以实质心理学为基础的评估：认知诊断

评价除了了解学习者的学习情况外,同时还应该提供学习者学习状况的诊断信息,以利于教学与学习。评价应该以认知心理学对学习过程的研究,作为编制测验的实质理论依据,进行认知诊断评估。本文针对认知诊断的心理学基础：知识的习得、知识诱发、知识表征、知识结构等进行梳理,以便测验开发者对认知诊断评估有更清晰的认识。     

Cognitive Functioning in Treatment-Seeking Gulf War Veterans: Pyridostigmine Bromide Use and PTSD

Gulf War (GW) deployed veterans have reported health symptoms since returning from the war that suggest dysfunction of the central nervous system (CNS). These symptoms include memory and concentration difficulties, fatigue, and headaches. Leading hypotheses for the etiology of these cognitive complaints include psychological factors and/or exposures to chemicals with neurotoxic properties. In this study, cognitive functioning was compared in treatment-seeking GW-deployed veterans and a treatment-seeking non–GW-deployed veteran control group. Results indicated that GW-deployed veterans performed significantly worse than the comparison group on tests of attention, visuospatial skills, visual memory, and mood. GW-deployed veterans who reported taking pyridostigmine bromide (PB) performed worse than GW-deployed veterans without PB use on executive system tasks. Treatment-seeking GW-deployed veterans with diagnoses of posttraumatic stress disorder (PTSD) did not differ on cognitive test measures compared with GW-deployed veterans without PTSD. No interaction effect of PTSD and PB use was found.     

Assessing cognitive impairment in Indigenous Australians: Re‐evaluation of the Kimberley Indigenous Cognitive Assessment in Western Australia and the Northern Territory

The Kimberley Indigenous Cognitive Assessment (KICA) was initially developed and validated as a culturally appropriate dementia screening tool for older Indigenous people living in the Kimberley. This paper describes the re‐evaluation of the psychometric properties of the cognitive section (KICA‐Cog) of this tool in two different populations, including a Northern Territory sample, and a larger population‐based cohort from the Kimberley. In both populations, participants were evaluated on the KICA‐Cog tool, and independently assessed by expert clinical raters blinded to the KICA scores, to determine validity and reliability of dementia diagnosis for both groups. Community consultation, feedback and education were integral parts of the research. for the Northern Territory sample, 52 participants were selected primarily through health services. Sensitivity was 82.4% and specificity was 87.5% for diagnosis of dementia, with area under the curve (AUC) of .95, based on a cut‐off score of 31/32 of a possible 39. for the Kimberley sample, 363 participants from multiple communities formed part of a prevalence study of dementia. Sensitivity was 93.3% and specificity was 98.4% for a cut‐off score of 33/34, with AUC = .98 (95% confidence interval: 0.97–0.99). There was no education bias found. The KICA‐Cog appears to be most reliable at a cut‐off of 33/39.     

海员认知能力测评

本研究采用反应时、速度判断、深度知觉、记忆力和注意力等5项认知能力指标,对129名海员的认知能力进行了测试。通过专家咨询法确定了各项指标的权重系数,构建了海员认知能力评价模型,并提出了评价标准。     

Computerized assessment in neuropsychology: A review of tests and test batteries

This article contains detailed reviews of 13 computerized neuropsychological and performance test batteries and six stand-alone computer tests. Tasks found on these instruments are described and tables illustrate which batteries employ which measures. In addition to issues of reliability and validity, special considerations apply to computerized assessment. These issues are discussed and readers are provided information to help them assess computerized tests in relation to their particular clinical and research needs. Since many computerized tests were developed as performance assessment tools, the relationship between performance and neuropsychological assessment is examined.     

计算机化考试与中国教育评估

本文由张华华教授讲座内容整理而成,主要是关于计算机化考试的理论、技术、方法,以及美国教育进展评估给中国教育评估带来的启示.本文对于较全面深入了解计算机考试相关内容的读者具有重要借鉴意义.     

Comparison of Cognitive Empathy,Emotional Empathy,and Social Functioning in Different Age Groups

Empathic responses and optimum social functioning are associated with psychological and physical health benefits. The aim of this study was to compare emotional empathy, cognitive empathy, and social functioning among different age groups, including adolescence, young adulthood, middle adulthood, and late adulthood. One hundred and ninety‐six people (92 males, 104 females) with the age range of 14 to 85 assigned to four age groups (adolescents, young adults, middle adults, and older adults) participated in this study. Participants were asked to complete the Empathy Quotient, the Revised Eyes Test, and Social Functioning Scale. The results showed that there were significant differences between older adults and other groups. Emotional empathy increased in older people, but there were deficits in some aspects of cognitive empathy. Also, the findings showed an age‐related decline in social functioning. Due to deficits in cognitive empathy affected by ageing, older adults showed some impairment in their ability to interpret emotional cues. This age‐related decline in cognitive empathy might be a reason for weak social functioning in older adults. Therefore, considering these elements would be helpful to provide healthcare strategies for elderly people.     

Cognitive specificity and affective confounding in social anxiety and dysphoria in children

Cognitive features of social anxiety and dysphoria were examined with a design that allowed for evaluation of each state alone and in combination. From a community sample of 211 8 to 12 year olds, four groups of children were defined based on previous researcher's criteria: mixed (high socially anxious-dysphoric;n= 14), socially anxious (high socially anxiousnondysphoric;n= 14), dysphoric (non-socially anxious-dysphoric;n= 13), and control (non-socially anxious-nondysphoric;n= 14). The negative cognitive triad and negative cognitions pertaining to the self were associated with both dysphoria and social anxiety. Both dysphoric and socially anxious groups reported significantly more cognitive distortions than the control group, yet cognitive distortions of overgeneralizing and personalizing were specific to social anxiety and not dysphoria. Both dysphoric and socially anxious groups reported significantly more depressive cognitions than the control group, and evidence of cognitive content-specificity emerged only for anxiety, although there was some evidence for depressive content-specificity in the mother's ratings. The mixed group was the most dysfunctional on all of the cognitive measures. This study provided some evidence of cognitive-specificity as well as the confounding between the affective states of dysphoria and social anxiety. Methodological, theoretical, and treatment implications are highlighted.     

Cultural Values Underlying Psychometric Cognitive Testing

It is proposed that culture (values, beliefs, styles of behavior) can affect neuropsychological testing.Cognitive testing represents a social situation that-as any social situation, it is one governed by implicit cultural rules. At least eight different culture-dependent values underlie cognitive testing: (1)One-to-one relationship, (2) Background authority, (3) Best performance, (4)Isolated environment (5) Special type of communication, (6) Speed, (7) Internal or subjective issues, and (8) The use of specific testing elements and strategies. In addition, it is proposed that“the distance” (e.g., gender, age, ethnicity) between the examiner and the examinee may potentiallyimpact the testing situation. A special analysis regarding the function of instruction in cognitive tests is also presented emphasizing that test instruction interpretation is also culture-dependent. Some potential avenues of research are finally proposed.     

认知诊断计算机化自适应测验中新的选题策略:结合项目区分度指标

当前国内外大部分认知诊断计算机化自适应测验(CD-CAT)主要采用PWKL作为选题策略进行研究。PWKL结合后验分布信息对KL指标进行加权,提高了判准率,但该方法仅利用个体层面信息加权,忽视了项目本身能够提供的信息,属于单源指标。本研究结合认知诊断中的项目区分度信息,对PWKL进行修正,提出了4种新的多源选题策略:GIDPWKL、AIDPWKL、CIDPWKL和KLEDPWKL方法,并在加入曝光控制下与PWKL和互信息法(MIM)进行比较。模拟研究结果表明:(1)在定长测验情景下的绝大多数实验结果表明,测验长度越短,新方法的判准率越高。平均属性/模式判准率最高的是GIDPWKL,之后是AIDPWKL,而CIDPWKL、KLEDPWKL和MIM方法的优势随实验条件不同而不同。(2)在定长测验情景下的绝大多数实验结果表明,题目质量越高,新方法的优势越明显。(3)Q矩阵结构的复杂性会影响不同选题策略的表现。(4)在变长测验情景下,4种新方法和MIM的平均测验长度均要低于PWKL方法,表现最好的是GIDPWKL方法。因此,若实际测验情景与本研究的模拟情景相似,推荐GIDPWKL方法。     

计算机化自适应测验在认知诊断中的应用

作为认知诊断与计算机化自适应测验相结合的产物, 认知诊断计算机化自适应测验(Cognitive Diagnostic Computerized Adaptive Testing, CD-CAT)是对被试知识状态的自适应。它既有传统CAT所面临的普遍性问题, 也有在认知诊断中遇到的特殊问题：由于认知诊断中涉及属性这一概念, CD-CAT与传统CAT有很大的差别。本文紧紧围绕属性引起的差异, 分别从认知诊断模型、题库建设、起始规则、选题策略、被试知识状态估计和终止规则等几部分详细介绍CD-CAT的研究进展和存在的问题。     

Assessment of cognition in an adolescent Indigenous population

The assessment of cognition in Indigenous populations is often complicated by cultural and language differences and unfamiliarity with the assessment process. Cognitive tasks are being developed that reduce the impact of these factors. These processes need to be evaluated in different cultural and ethnic groups to determine whether they are appropriate. Such an assessment was recently used in two studies of cognition of 237 Indigenous Australian adolescents (age: M = 16.06 ± 2.16 years). The tasks were completed appropriately, with response times and error rates increasing for difficult tasks. Duration and error rates decreased for the round‐based tasks, in line with performance in non‐Indigenous samples. There were no gender effects. Age associations occurred in some tasks, but significant correlations were only of a small magnitude. Although the battery appeared to be completed appropriately in this study, more work needs to be conducted examining the influence of demographic factors to ensure that control data can be most appropriately matched in future studies.     

轻度认知功能障碍与颈动脉狭窄的相关性研究

为了探讨颈动脉狭窄与轻度认知功能障碍(MCI)的关系,选取轻度认知功能障碍病例89例,健康对照组100例,全部行颈动脉彩超检查及简易智能状态量表(MMSE),蒙特利尔认知量表(MoCA),临床痴呆量表(CDR),日常生活能力量表(ADL),汉密尔顿抑郁量表(HAMD)测评.结果发现轻度认知功能障碍组颈动脉狭窄发生率明显高于对照组,左侧发生率明显高于右侧.其中随着狭窄的严重程度增加,患者在延迟回忆、视空间与执行功能、计算力与注意力、语言能力方面评分显著下降.从这一结果可以看出轻度认知功能障碍与颈动脉狭窄密切相关.     

Social-Cognitive Functioning and Schizotypal Characteristics

The authors examined the relationship between social cognition and a feature of schizotypal personality referred to as magical ideation, defined broadly as the presence and intensity of illogical beliefs about causality and the nature of reality. The measures of social cognition used in this study were the Character Intention Task (CIT) and the adult version of the Reading the Mind in the Eyes Test. Regression analyses indicated that understanding of character intentions, as measured by CIT scores, and ability to identify emotions on the Eyes test were related to non-realistic beliefs. Principal components analysis of the Magical Ideation Scale generated 3 factors: Occult Beliefs, Non-Realism, and New Age Ideas. Results indicated that impaired understanding of character intentions and ability to identify emotions on the Eyes test were related to non-realistic beliefs. Understanding the cognitive impairments associated with schizotypal characteristics can facilitate development of more targeted therapeutic interventions.