Attentional deficit in learning-disabled children: evidence from visual half-field asymmetries

The structural theory of cerebral lateralization has been typically used to explain hemispheric asymmetries. However, the attentional model of brain functioning may help resolve some of the inconsistent findings with groups of learning-disabled children. To test this hypothesis, a visual half-field paradigm for word recognition was employed in a group of 26 learning-disabled and 26 normal children matched for sex, chronological age, and handedness. Three experimental conditions (unilateral, cued unilateral, and bilateral) and two word error types (visually and acoustically confusable words) were analyzed. The results indicated that normals produced the expected RVHF superiority under all experimental conditions, but the learning-disabled produced the expected RVHF superiority only under the cued unilateral condition. Learning-disabled children also made significantly more visually and acoustically confusable errors than normals and unlike normal children increased the number of acoustic errors in the RVF under bilateral stimulation. These results provide evidence that learning-disabled children may process information inefficiently and have brain activation patterns that are more susceptible to attentional effects.     

Comments on a standardized version of Luria's tests

Appreciation is expressed for the work of Golden's group in the selection of Luria's tests, the standardization of their administration, the collection of norms, and the evaluation of the reliability and validity of the Luria-Nebraska test battery. However, questions are raised concerning the ability of the test to efficiently handle topical diagnosis and to construct rehabilitation programs. Concern is expressed over the possible vulgarization of Luria's doctrine of functional systems and the loss of predictive power in Luria's tests through neglect of qualitative information and methodology. Suggestions are made as to how Luria's qualitative methodology might be incorporated in a standardized version of a neuropsychological examination.     

Positive mood boosts the expression of a dispositional need for closure

Three studies (N=539) examined the hypothesis that positive mood increases the degree to which epistemic motivation, i.e., the need for closure (NFC), affects the way in which an individual processes information (heuristic vs. systematic processing). In each of the studies, different methods of operationalising mood were used: in Study 1, mood was measured as a state; in Study 2, mood was induced by asking participants to recall emotional events; and in Study 3, mood was induced by emotional pictures. The styles of information processing that were utilised by our participants were operationalised in terms of their preferences for (Study 1) and ability to recall (Studies 2 and 3) schema-consistent and schema-inconsistent information. Taken together, the results of the three studies show that only under positive mood, NFC level of an individual is consistent with his or her style of information processing, that is, only under positive mood is there a negative relationship between the NFC level of an individual and the utilisation of schema-inconsistent information. Our results can be explained in terms of the effect that mood has on an individual's perceived ability to achieve NFC.     

Confucian Order at the Edge of Chaos: The Science of Complexity and Ancient Wisdom

Many academics extol chaos theory and the science of complexity as significant scientific advances with application in such diverse fields as biology, anthropology, economics, and history. In this paper we focus our attention on structure-within-chaos and the dynamic self-organization of complex systems in the context of social philosophy. Although the modern formulation of the science of complexity has developed out of late-twentieth-century physics and computational mathematics, its roots may extend much deeper into classical thinking. We argue here that the essential ideas and predictions of the science of complexity are found within the social ordering principle of li (the rites) in Confucius's Analects .     

Reviews

Thomas Ryba, The Essence of Phenomenology and Its Meaning for the Scientific Study of Religion
Daniel C. Dennett, Darwin's Dangerous Idea: Evolution and the Meaning of Life
Edited by Clifford N. Matthews and Roy A. Varghese, Cosmic Beginnings and Human Ends: Where Science and Religion Meet     

“以毒攻毒”与中西医结合研究

“以毒攻毒”是中医药学一个重要医理和治则。本文介绍了国内外有关“以毒攻毒”的研究进展,以及具有“以毒攻毒”特点的医药研究状况。特别是德国细菌学家贝林等,研制成功破伤风和白喉抗毒素。我国学者张亭栋教授与陈竺教授,继承发掘中药砒霜治疗世界性难治病—急性早幼粒细胞白血病,取得国际领先水平的科研成果等等,表明中西医结合研究是继承发展中医药学的有效方法和途径。     

Serial learning: Identification of subjective subsequences

Learning of fixed arbitrary sequences proceeds by idiosyncratic subsequencing and assembly of the resulting subsequences. An error item that just precedes a subjective subsequence is a closely constrained member of that subsequence. Identification and characterization of subjective subsequences were accomplished by analyses of forward serial learning, free recall, and backward serial learning. We conclude that ordinary serial learning cannot be represented by traditional continuous-process theories, but instead must be treated by an organizational model.     

Retrieval of propositional information from long-term memory

Three experiments are reported in which subjects learn propositions like A hippie is in the park. The experiments manipulate the number of such propositions involving a particular person (e.g., hippie) or a particular location (e.g., park). After learning the material, subjects are asked to judge whether particular probe propositions are from the study set. Times to make these judgments about probe propositions increase with the number of study propositions involving the person or location used in the probe proposition. A model is presented which assumes a subject simultaneously accesses memory from all concepts in a probe proposition and serially searches through all study propositions involving each concept. Search of memory terminates as soon as one search process from a concept finds the probe proposition or exhausts the study propositions attached to that concept.     

Sex stereotypes in occupational choice: The case for college women

The choice of a male dominated occupation rather than a traditionally feminine one is the single occupational variable which meaningfully divides a class of women who were studied intensively over the 4 yr of college. Women who choose occupations which employ largely men differ predictably from women who select feminine occupations in terms of familial influence, work values, work experience, role model influence and some collegiate activities. The two groups do not differ appreciably in sociability experiences or in relationships with parents, so it cannot be argued that the work plans of the pioneer women stem from social isolation, rejection, or lack of appropriate feminine socialization.     

Types produce types: An examination of personality development using Holland's theory

This study was designed to test Holland's hypothesis that parents encourage the development of their own personality types in their offspring. Data were collected by personal interviews from three freshmen classes at a large midwestern university. Parent's personality types (occupations) were compared to offsprings' personality types (expressed occupational choices) using the Kolmogorov-Smirnov one-sample test to determine whether or not the comparisons were due to chance. The results indicated that relationships existed between the personality types of fathers-sons, fathers-daughters and mothers-daughters while no relationship was confirmed between mothers-sons.