Cognitive Performance as a Function of Sex and Handedness: An Evaluation of the Levy Hypothesis

Investigated incidence of left-handedness and non-right-handedness in a sample of 9th-grade students (n=313). In comparison, incidence among undergraduates is underestimated. Gitld were not significantly more right-handed than boys in the 9th grade sample but were significantly (p<01) more right-handed than boys in a sample of math students, grades 9-11 (n = 1097). Handedness did not affect math achievement (Test of Academic Progress), verbal (Quick Word Test) or spatial (Space Relations Test of the Differential Aptitude Test) performance in the 9th (n = 108) or 10th (n = 75) grade students, for 11th grade students (n = 98) a significant sex-by-handedness-by-measures (verbal-spatial) interaction was found (p<05). Results did not support the hypothesis of Levy's that left-handedness decreases spatial performance and benefits verbal performance, nor did the results support the further hypothesis that the cognitive pattern of higher verbal than spatial performance often considered characteristic of females can be attributed to more bilateral cerebral verbal function in females as in left-handers.     

Cognitive Differences Between Experts and Novices: Implications for Group Supervision

The literature on counselor training and supervision has grown considerably in the past decade. Little of this literature has discussed group supervision. This article outlines the implications of cognitive psychology for group supervision and discusses the unique dimensions of the group modality for the supervision process and cognitive skill acquisition.     

Measuring Cognitive Aptitude Using Unobtrusive Knowledge Tests: A New Survey Technology

Five knowledge tests and one implicit-reasoning task were developed to be: (1) exceptionally short, (2) correlated with general cognitive aptitude, (3) unobtrusive, i.e., appear similar to attitudinal survey items as opposed to maximal performance measures, and (4) without formally “correct” answers. The intent was to design scales that could be administered in non-proctored environments to directly measure general cognitive aptitude while avoiding the possibility that participants could use references to provide “good” answers. The five knowledge tests used a Likert format to assess knowledge in verbal and practical domains, and were scored by computing distances between examinee and reference ratings. The implicit-reasoning task appeared to be a series completion “game” that required a dichotomous response. The scales were administered to 288 Air Force recruits and were validated against the Armed Services Vocational Aptitude Battery (ASVAB). Individual unobtrusive knowledge scales and ASVAB tests were substantially correlated with sample correlations ranging to .39 and population correlation estimates to .66 after correcting for range restriction. Two sets of factor scores, which were separately derived from the unobtrusive test battery and the ASVAB, were highly correlated in our sample, .54, yielding a population correlation of .80 after correcting for range restriction. This technology is important because few paper- or Internet-based surveys, and virtually no mail-based surveys accurately measure general cognitive aptitude, while many of these surveys address important social issues and commercial questions that could be better understood given an unobtrusive but accurate estimate of general cognitive aptitude.     

Group Premarital Counseling Using a Premarital Assessment Questionnaire: Evaluation from Group Leaders

No research to date addresses premarital assessment questionnaire (PAQ) use within group settings. The current study evaluated the benefits and drawbacks of group use of one PAQ (the RELATE Inventory). Results were obtained via semi-structured interviews of group leaders and indicate overall leader agreement on the perceived desirability, benefits, and drawbacks of using PAQs in group premarital efforts. Recommended principles/guidelines for effective group PAQ use are organized into four categories: PAQ Considerations, Group Leader Considerations, Couple Considerations, and Group Content/Process Considerations.     

How to Exploit Diversity for Scientific Gain: Using Individual Differences to Constrain Cognitive Theory

ABSTRACT— People often show considerable systematic variability in their ability to perform many different cognitive tasks. In this article, we argue that by combining an individual-differences approach with an experimental-cognitive-neuroscience approach one can often further constrain potential theories of the underlying cognitive mechanisms. In support of this proposal, we outline three basic benefits of using an individual-differences approach: validating neurophysiological measures, demonstrating associations among constructs, and demonstrating dissociations among apparently similar constructs. To illustrate these points, we describe recent work by us and other researchers that utilizes each of these techniques to address specific questions within the domain of visual working memory. It is our hope that some of these techniques for utilizing individual variability may be applied to other domains within cognitive neuroscience.     

Ingroup Bias in the Minimal Group Situation: An Experimental Test of the Inequity Prevention Hypothesis

The inequity prevention explanation of ingroup bias in the minimal group situation holds that group members expect biased behavior from the outgroup. As a consequence, they would favor their own group in order to compensate for this anticipated outgroup bias. As a test of this interpretation,the relationship between experimentally created minimal groups was operationalized in such a way that subjects of some conditions could indeed expect biased behavior from the outgroup. In another condition, they had no reason to expect such biased behavior. The results revealed that subjects participating in the first kind of condition did indeed think that the outgroup was biased. In the condition of the second type, they thought that the outgroup was fair. Their actual intergroup behavior was nevertheless equally discriminatory in both kinds of conditions. The theoretical implications of the data are discussed.     

Performance of Dyslexic Children on Cerebellar and Cognitive Tests

In a previous study (A. J. Fawcett, R. I. Nicolson, & P. Dean, 1996), the authors had found strong behavioral evidence for cerebellar deficit in a panel of children with dyslexia. In the present study, the generality of those results was assessed. A battery of clinical tests for cerebellar dysfunction was administered, together with selected cognitive tests, to a further 59 dyslexic and 67 control children. The dyslexic children showed highly significant impairments on the cerebellar tests, with deficits on postural stability and muscle tone comparable in magnitude with their reading and spelling deficits. Furthermore, over 95% of the dyslexic children showed clear evidence of deficit on muscle tone or stability. The findings provide further evidence of the generality of cerebellar impairment in dyslexia. The implications of the cerebellar tests for screening in dyslexia are discussed.     

Performance of Dyslexic Children on Cerebellar and Cognitive Tests

In a previous study (A. J. Fawcett, R. I. Nicolson, & P. Dean, 1996), the authors had found strong behavioral evidence for cerebellar deficit in a panel of children with dyslexia. In the present study, the generality of those results was assessed. A battery of clinical tests for cerebellar dysfunction was administered, together with selected cognitive tests, to a further 59 dyslexic and 67 control children. The dyslexic children showed highly significant impairments on the cerebellar tests, with deficits on postural stability and muscle tone comparable in magnitude with their reading and spelling deficits. Furthermore, over 95&percent; of the dyslexic children showed clear evidence of deficit on muscle tone or stability. The findings provide further evidence of the generality of cerebellar impairment in dyslexia. The implications of the cerebellar tests for screening in dyslexia are discussed.     

Gender Differences in Self-Reports of Depression: The Response Bias Hypothesis Revisited

This study was designed to revisit the response bias hypothesis, which posits that gender differences in depression prevalence rates may reflect a tendency for men to underreport depressive symptoms. In this study, we examined aspects of gender role socialization (gender-related traits, socially desirable responding, beliefs about mental health and depression) that may contribute to a response bias in self-reports of depression. In addition, we investigated the impact of two contextual variables (i.e., cause of depression and level of intrusiveness of experimental follow-up) on self-reports of depressive symptoms. Results indicated that men, but not women, reported fewer depressive symptoms when consent forms indicated that a more involved follow-up might occur. Further, results indicated differential responding by men and women on measures of gender-related traits, mental health beliefs, and beliefs about depression and predictors of depressed mood. Together, our results support the assertion that, in specific contexts, a response bias explanation warrants further consideration in investigations of gender differences in rates of self-reported depression.     

创伤性分离个体注意加工的警戒-回避模式研究

采用点探测研究范式,对高分离个体和低分离个体在两种呈现时间500ms和1500ms条件下,随机呈现创伤性图片和中性图片,进行点探测反应,考察创伤性分离个体的注意加工特点.结果表明,高分离个体在500ms呈现时间条件下对创伤性图片的反应时间显著快于低分离个体对创伤图片刺激的反应时间,而在1500ms呈现时间条件下则显著慢于低分离个体.表明创伤性高分离个体的注意加工符合警戒-回避的时程性模式:开始时对创伤性刺激是一种保护性的警戒反应;在随后刺激的呈现时间增加时,回避对创伤相关信息的进一步编码和精细加工,出现有意遗忘,体现在提取和回忆上的减弱,我们称之为回避加工.     

凯罗的认知能力模型述评

1　智力研究的相关与实验传统　　 1 957年 ,克隆巴赤在就任美国心理学会主席的著名演讲中指出 ,在科学方法上 ,现代心理学中一直存在着两个分支 ,一个是实验方法的分支 ,另一个是相关方法的分支 ,这种方法上的分歧在智力研究中表现得尤其明显。尽管当前的智力研究有对实验方法偏重的倾向 ,但这并非就意味着对相关方法的忽视或遗弃。事实仍如克隆巴赫所说的那样 ,在一些研究者吸收认识科学新成就 ,偏重实验方法的同时 ,另一些偏爱相关方法的研究者也在吸收当代认知神经科学研究的最新成果不断地改进着自己所属的研究传统。这不仅反映在以心…     

An Alternate Method for Content-Oriented Test Construction: An Empirical Evaluation

This study empirically evaluates the relationships between rationally and empirically estimated item indices used in the development of a test of land navigation knowledge for the US Marine Corps. Three land navigation instructors provided ratings on three item indices (item content validity ratios [CVRs], difficulty, and discrimination). These ratings were correlated with empirically derived item indices (difficulty, discrimination, and item-criterion correlations) obtained from the scores of 359 Marines on measures of land navigation knowledge, skill, and performance. Contrary to previous research, item CVRs were significantly correlated with all three empirically determined item indices. The increased effectiveness of rational item indices obtained in the present study over those from previous research appears to be related to the following areas: qualifications of expert raters, match of raters to the rating task, and the nature of the rating task. The implications for content-oriented test design and for judgmental test validation strategies are discussed.     

Group Cognitive Behavior Therapy for Chronic Posttraumatic Stress Disorder: An Initial Randomized Pilot Study

Individuals with posttraumatic stress disorder (PTSD) related to a serious motor vehicle accident were randomly assigned to either group cognitive behavioral treatment (GCBT) or a minimum contact comparison group (MCC). Compared to the MCC participants (n = 16), individuals who completed GCBT (n = 17) showed significant reductions in PTSD symptoms, whether assessed using clinical interview or a self-report measure. Among treatment completers, 88.3% of GCBT participants did not satisfy criteria for PTSD at posttreatment assessment, relative to 31.3% of the MCC participants. Examination of anxiety, depression, and pain measures did not show a unique advantage of GCBT. Treatment-related gains were maintained over a 3-month follow-up interval. Patients reported satisfaction with GCBT, and attrition from this treatment was comparable with individually administered CBTs. Results are discussed in light of modifications necessitated by the group treatment format, with suggestions for future study of this group intervention.     

Evaluation of Digital Drawing Tests and Paper-and-Pencil Drawing Tests for the Screening of Mild Cognitive Impairment and Dementia: A Systematic Review and Meta-analysis of Diagnostic Studies

Neuropsychology Review - Digital drawing tests have been proposed for cognitive screening over the past decade. However, the diagnostic performance is still to clarify. The objective of this study...     

The Importance of Sound for Cognitive Sequencing Abilities: The Auditory Scaffolding Hypothesis

ABSTRACT— Sound is inherently a temporal and sequential signal. Experience with sound therefore may help bootstrap—that is, provide a kind of "scaffolding" for—the development of general cognitive abilities related to representing temporal or sequential patterns. Accordingly, the absence of sound early in development may result in disturbances to these sequencing skills. In support of this hypothesis, we present two types of findings. First, normal-hearing adults do best on sequencing tasks when the sense of hearing, rather than sight, can be used. Second, recent findings suggest that deaf children have disturbances on exactly these same kinds of tasks that involve learning and manipulation of serial-order information. We suggest that sound provides an "auditory scaffolding" for time and serial-order behavior, possibly mediated through neural connections between the temporal and frontal lobes of the brain. Under conditions of auditory deprivation, auditory scaffolding is absent, resulting in neural reorganization and a disturbance to cognitive sequencing abilities.