The role of vocabulary ability during visual word recognition in younger and older adults

The role that vocabulary ability plays in adult age differences in word recognition was investigated. In Experiment 1, 44 older adults (ages 61-93 years) were compared with 44 younger adults (ages 18-39 years) on a standard lexical-decision task, with ambiguous words, unambiguous words, and pseudowords serving as stimuli. In Experiment 1, the Wechsler Adult Intelligence Scale-Revised (WAIS-R; D. Wechsler, 1981) vocabulary performance was uncontrolled across the younger and older adults, and the older adults had higher WAIS-R scores. There was no Group x Stimulus interaction. In Experiment 2, the data from the same 44 older adults were compared with data from a new sample of 44 younger adults (ages 18-44). Both groups were then matched on WAIS-R performance. Results revealed a significant Group x Stimulus interaction. Reaction time differences between the younger and older groups on the ambiguous words and unambiguous words were identical. The differences in reaction times for words and pseudowords were greater in the older adults. The importance of vocabulary ability during word recognition and lexical processing is discussed.     

周围神经嵌压症诊治过程中的临床思维

运用自然辩证法培养良好的临床思维,指导周围神经嵌压症的诊治过程,有助于获得最佳诊治效果。诊断过程中需全面了解理论知识,学会科学观察,兼顾整体与局部的关系,通过合理分析与综合,可以做出确切诊断。治疗过程中需对有关医师的技术进行评价,采用控制论及系统论方法指导治疗,才能恢复周围神经的结构与功能。     

Greek students' attitudes toward physical activity and health-related behavior

A three-wave study over one year with 882 adolescents, aged 10 to 16 years at the initial testing, examined psychosocial variables regarding four health-related behaviors: exercise, eating fruit, smoking, and drug use. Analysis showed that during the stages of the study, high school students' exercise behavior decreased and their smoking behavior increased as well as their willingness to use drugs. It seems that study of physical education and health education during adolescence must take into account the possible differences in psychosocial variables associated with health-related behaviors as well as the different stages of adolescence.     

Commitment profiles: The configural effect of the forms and foci of commitment on work outcomes

This study is based upon the conceptual linking of the multidimensional and multi-focal nature of work-related commitment. The main aims of our study were to create, through K-means cluster analysis, commitment profiles based on the three components of organizational and occupational commitment, and to examine their joint effect on key work outcomes. One hundred and fifty seven working adults completed questionnaires measuring the three components of organizational and occupational commitment, and work outcomes. Our findings show (a) the incremental validity of occupational commitment in the prediction of work-related variables, (b) the compatibility of occupational and organizational commitment as reflected in the four form-oriented commitment profiles that emerged (highly committed, affective–normative dominant, continuance dominant, and non-committed), and (c) the positive effect of the highly committed profile (dually foci-committed employees with high AC, CC, and NC) on focal and discretionary behaviors. On a practical level, our results can foster the practice of management concerning control of withdrawal behaviors and development of desirable discretionary behaviors.     

Contextuality and Catholicity: The Task of Orthodox Theology in Ecumenical Theological Education

The essay unfolds theological foundations for theological education in ecumenical perspective from Orthodox perspectives seeing it as a worldwide enterprise fundamental to the mission of the church, not in its institutional character, but in its eschatological awareness of being a foretaste of the Kingdom of God. The relation between early ecumenical optimism and enthusiasm towards the goal of the visible unity of the church and the wide application of contextuality, i.e. the recognition of the contextual character of theology as a method from the 1970s onwards is discussed. According to the Orthodox perspectives, the ecumenical movement has lost its momentum and coherence and its determination for the quest of visible unity with the predominant acceptance of contextuality as the guiding principle in ecumenical discussions and theological education. The author argues that Orthodox theology has to deepen the understanding of its own contextuality and soften the existing antithesis between contextuality and catholicity of theology and theological education. Orthodox perspectives should underline the relevance of a fundamental unity of divine revelation, as represented in the broad understanding of Christian tradition, which is for the entire created world, not only for believers and which is challenging both a potential distortion, wherein unity is identified with the maintenance of denominational loyalty, as well as all contextual expressions of Christian theology with regard to their relation to the overall goal of church unity. The paper concludes with a plea for all Orthodox theological education to be of some real service to the church in deciding to deal both with current issues (to be contextual) and not to lose sight of the past (to be oriented to catholicity and church unity), to both open up to ecumenical theological education while at the same time maintaining a strong commitment to the common church tradition.     

Individual differences in the influence of time of day on executive functions

Previous research has documented the impact of time of day on vigilance and memory and the moderating influence of circadian typology (morningness-eveningness) on the relationship between time of testing and cognitive processes. This study examined the impact of circadian typology and time of testing on executive functions. Morning-type and evening-type people were randomly assigned to a morning or afternoon testing time, and their performance on neuropsychological tests, including the Conners Continuous Performance Test (CPT), the Digit Span test, the Controlled Oral Word Association Test (COWAT), and the Wisconsin Card Sorting Test (WCST) was compared. No interactions between circadian typology and time of day were observed on the CPT or Digit Span test. A time of day effect was found on the letter generation portion of the COWAT. More words were generated in the afternoon than in the morning. In contrast, performance on the WCST was best when morning-type participants were tested at their optimal time of day. These findings suggest that circadian typology should be considered when scheduling neuropsychological assessments, rehabilitation training, and critical job tasks.     

Effects of mental workload and caffeine on catecholamines and blood pressure compared to performance variations

Caffeine is characterised as a central nervous system stimulant, also affecting metabolic and cardiovascular functions. A number of studies have demonstrated an effect of caffeine on the excretion of catecholamines and their metabolites. Urinary epinephrine and norepinephrine have been shown to increase after caffeine administration. Similar trends were observed in our study in adrenaline (ADR) and noradrenaline (NORADR) levels and additionally a dose dependent effect of caffeine. The effect of caffeine on cognitive performance, blood pressure, and catecholamines was tested under resting conditions and under mental workload. Each subject performed the test after oral administration of 1 cup and then 3 cups of coffee. Root mean square error (RMSE) for the tracking task was continuously monitored. Blood pressure was also recorded before and after each stage of the experiment. Catecholamines were collected and measured for three different conditions as: at rest, after mental stress alone, after one dose of caffeine under stress, and after triple dose of caffeine under stress. Comparison of the performance of each stage with the resting conditions revealed statistically significant differences between group of smokers/coffee drinkers compared with the other two groups of non-coffee drinkers/non-smokers and non-smokers/coffee drinkers. There was no statistically significant difference between the last two groups. There was an increase of urine adrenaline with 1 cup of coffee and statistically significant increase of urine noradrenaline. Both catecholamines were significantly increased with triple dose of caffeine. Mental workload increased catecholamines. There was a dose dependent effect of caffeine on catecholamines.     

Effects of text genre and verbal ability on adult age differences in sensitivity to text structure

The present study examined the effects of verbal ability and text genre on adult age differences in sensitivity to the semantic structure of prose. Young and older adults of low or high verbal ability heard narrative and expository passages at different presentation rates. The results demonstrated that older adults recalled less than younger adults and that age differences in recall were larger for low-verbal adults and expository texts. However, subjects from all groups favored the main ideas in their recalls for both types of passages. The results indicated that adult age similarities in the ability to focus on the main ideas when processing prose was not compromised by the verbal ability of the subjects or the organization of the passages used. However, the results also demonstrate how the characteristics of the learner and the characteristics of the text modulate the size of the age differences observed.