Book reviews

This paper begins with a critical evaluation of British counselling psychology's aspirations for a scientific basis and considers some of the consequences in terms of theoretical assumptions and research practice. Through identifying certain empirical, theoretical and ideological problems inherent in the dominant tradition of quantifying inferred cognitive constructs (using the example of trainee self-talk), an alternative framework of discursive psychology is simultaneously introduced. the argument is made for a discursive study of storied meanings by trainee counselling psychologists about themselves and their work. This would potentially address two pivotal research areas. First, it affords both a personal and yet socially embedded framework for an increased understanding and more sensitive evaluation of the training process (with its acquisition of skills, knowledge, experience, competencies, etc.). Second, it offers an alternative approach to the problematic area of understanding unique and generic interactions between practitioners and their preferred psychological model(s) of therapy, thus challenging the theoretical and research cul-de-sac of competing modernist visions of purism, eclecticism and integration. Extending from these observations two research possibilities are suggested.     

Effects of age on attention level: changes in performance between the ages of 12 and 90

ABSTRACT

The purpose of the present study was to assess the changes in attention level among individuals between the ages of 12 and 90 years. A cross-sectional design was used, with each participant tested once by means of the Mathematics Continuous Performance Test (MATH-CPT). Participants were 496 males and females who were divided into eight age-groups, with each group spanning a period of ten years. Attention level was assessed through comparison with nine variables assessing attention. As people aged, significant reductions in the quality of performance emerged on the five main measures of the MATH-CPT: Two of the four sustained attention variables showed an improvement with age. The peak attention level was in the 30 to a 40-age range, after that, there was a constant decline in the level of attention. The study offers encouraging results with respect to the effect of aging on cognitive functioning and specifically sustained attention.     

Everyday Cognitive Functioning in Cardiac Patients: Relationships Between Self-report,Report of a Significant Other and Cognitive Test Performance

ABSTRACT

Candidates for cardiac bypass surgery often experience cognitive decline. Such decline is likely to affect their everyday cognitive functioning. The aim of the present study was to compare cardiac patients' ratings of their everyday cognitive functioning against significant others' ratings and selected neuropsychological tests. Sixty-nine patients completed a battery of standardised cognitive tests. Patients and significant others also completed the Everyday Function Questionnaire independently of each other. Patient and significant other ratings of patients' everyday cognitive difficulties were found to be similar. Despite the similarities in ratings of difficulties, some everyday cognitive tasks were attributed to different processes. Patients' and significant others' ratings were most closely associated with the neuropsychological test of visual memory. Tests of the patients' verbal memory and fluency were only related to significant others' ratings. Test scores of attention and planning were largely unrelated to ratings by either patients or their significant others.     

Spatial Working Memory in Aging and Mild Cognitive Impairment: Effects of Task Load and Contextual Cueing

ABSTRACT

Mild Cognitive Impairment (MCI) is characterized by episodic memory deficits, while aspects of working memory may also be implicated, but studies into this latter domain are scarce and results are inconclusive. Using a computerized search paradigm, this study compares 25 young adults, 25 typically aging older adults and 15 amnestic MCI patients as to their working-memory capacities for object-location information and potential differential effects of memory load and additional context cues. An age-related deficit in visuospatial working-memory maintenance was found that became more pronounced with increasing task demands. The MCI group additionally showed reduced maintenance of bound information, i.e., object-location associations, again especially at elevated memory load. No effects of contextual cueing were found. The current findings indicate that working memory should be considered when screening patients for suspected MCI and monitoring its progression.     

Performance on a measure of category fluency in cognitively impaired elderly

ABSTRACT

Measures of verbal fluency are widely used in the assessment of cognitive functioning of the elderly. However, limited research has evaluated patterns (across specific timed intervals) of performance on tasks of language fluency in different forms of dementia. The current study investigated semantic fluency in 488 elderly individuals (249 with Alzheimer's dementia, 97 Vascular dementia, 97 Mild Cognitive Impairment and 45 cognitively intact) across 15-second intervals in an animal naming task using retrospective chart review. Normal controls produced significantly more exemplars and AD patients produced fewer animal names than the other groups. After the first 15- second time interval, the demented groups produced significantly fewer exemplars than the non-demented. At the end of 30 seconds it was possible to differentiate normal aging from MCI who no longer differed from the VaD group. Overall, it appears that the greatest and most clinically meaningful differences between the diagnostic groups were detected in the first three 15-second intervals. The present findings support the use of time intervals and total scores on tasks of verbal fluency in clinical settings and for research purposes.     

Differential Memory Test Sensitivity for Diagnosing Amnestic Mild Cognitive Impairment and Predicting Conversion to Alzheimer's Disease

ABSTRACT

Episodic memory is the first and most severely affected cognitive domain in Alzheimer's disease (AD), and it is also the key early marker in prodromal stages including amnestic mild cognitive impairment (MCI). The relative ability of memory tests to discriminate between MCI and normal aging has not been well characterized. We compared the classification value of widely used verbal memory tests in distinguishing healthy older adults (n = 51) from those with MCI (n = 38). Univariate logistic regression indicated that the total learning score from the California Verbal Learning Test-II (CVLT-II) ranked highest in terms of distinguishing MCI from normal aging (sensitivity = 90.2; specificity = 84.2). Inclusion of the delayed recall condition of a story memory task (i.e., WMS-III Logical Memory, Story A) enhanced the overall accuracy of classification (sensitivity = 92.2; specificity = 94.7). Combining Logical Memory recognition and CVLT-II long delay best predicted progression from MCI to AD over a 4-year period (accurate classification = 87.5%). Learning across multiple trials may provide the most sensitive index for initial diagnosis of MCI, but inclusion of additional variables may enhance overall accuracy and may represent the optimal strategy for identifying individuals most likely to progress to dementia.     

The usefulness of the story recall test in patients with mild cognitive impairment and Alzheimer's disease

ABSTRACT

Background: The story recall test (SRT) is one of the most reliable neuropsychological assessments for evaluating verbal memory function in order to distinguish between individuals with normal aging, mild cognitive impairment (MCI), and Alzheimer's disease (AD). The SRT is analogous to the logical memory test in Wechsler Memory Scale-III, which has recently been developed and standardized to apply to older adults in Korea. The purpose of this study was to examine the usefulness of the SRT and its ability to discriminate between normal cognitive aging and patients with MCI or AD. Methods: One hundred and twelve patients with MCI, 97 patients with AD, and 53 healthy elderly adults participated in this study. The SRT was compared with the Clinical Dementia Rating (CDR), Global Deterioration Scale (GDS), Korean version of the Mini Mental State Examination (K-MMSE), and the Korean version of the Hopkins Verbal Learning Test (K-HVLT). Results: The SRT was well-correlated with the dementia rating scales and the K-HVLT. However, the sensitivity and specificity of the SRT was greatly influenced by the level of education of the subjects. Conclusions: The SRT is a sensitive measurement of verbal memory function that can be used in clinical settings to discriminate between normal memory functioning and the very early and moderate stages of AD in a Korean population. Moreover, it is important to recognize that the SRT is more appropriate for subjects with a high level of education rather than a low level of education to differentiate normal cognitive aging from MCI or AD.     

学习风格与中美大学生课堂学习行为的关系研究

中美学生存在课堂学习行为差异的现象得到了中外众多教育工作者的关注和讨论.本文作者推测,中美学生在学习风格上存在的结构取向和深度取向的差异,是导致他们表现出不同课堂行为反应的一个原因.本研究采用学习风格量表和课堂学习行为量表对281名中国大学生和206名美国大学生施测.数据分析结果表明,中美学生存在学习风格与课堂学习行为的显著差异;学习风格的结构取向与课堂学习行为呈显著负相关,深度取向与课堂学习行为呈显著正相关;结构取向的学习风格在文化组别与课堂学习行为之间存在部分中介作用,表明结构取向至少能部分地解释中美大学生之间的课堂学习行为差异.     

The Effects of Instructor Fear Appeals and Moral Appeals on Cheating-Related Attitudes and Behavior of University Students

Little attention has been paid in academic dishonesty literature to empirically testing the effectiveness of different instructor communication strategies to minimize cheating. Using a quasi-experimental design, we compared the effectiveness of instructor fear appeals and moral appeals on student cheating-related attitudes and behavior. Cheating was most strongly associated with neutralizing attitudes in the moral appeal condition. Also, the relationship between observation of others cheating and self-reported cheating behaviors was stronger in both treatment conditions than in the control condition. Although a trend toward less cheating in the treatment conditions was evident, it did not attain statistical significance.