The Large Pursuit Rotor

The question of whether certain phenomena that occur on the conventional rotary pursuit and other small apparatus also appear on a gross motor task was examined using a large pursuit rotor that required whole-body movements. College males (n=29) were given 90 10-sec trials over three consecutive days with 30 trials of continuous practice per day. The existence of reactive inhibition, reminiscence, and warmup decrement was confirmed, indicating that common mechanisms underlie both fine and gross bodily movements. In addition, the substantial amounts of learning and the high reliabilities for performance and learning indicated that the present apparatus has considerable potential for motor-learning research.     

Pursuit Rotor Reminiscence in Schizophrenics and Normals

Normal and schizophrenic Ss (N=24 each) did pursuit rotor tracking and reminiscence was the score of interest; rest pauses of 2, 12, and 30 min., and 1, 6, and 24 hr. were interpolated in counterbalanced order after 5 min. of practice. It was predicted, on the basis of previous work, that schizophrenics would show greater reminiscence after the longer rest pauses, normals after the shorter rest pauses. The expected cross-over effect was found, but at a non-significant level only. There were no order effects. A discussion is given of the relation of these results to the interpretation of schizophrenia in terms of ‘‘arousal.”     

The Effect of Remoteness on Intertrial Correlations in Pursuit Rotor Performance

120 male university students were tested on a Koerth pursuit rotor. One group of 60 Ss was tested on each of 6 days spaced throughout a 3-wk. period. Another group of 60 Ss performed the same task in an identical manner for test-retest days only, with the retest day following by 3 wk. One group had a large amount of practice while the other did not within a comparable time period. Each practice session consisted of 60 15-sec. trials. The effects of both practice and layoff on intertrial correlations separated by increasing remoteness was investigated. The findings indicated, as others have found, that correlations decrease in size as remoteness increases. Adjacent trial correlations were found to increase as practice increased.     

Some Physiological Concomitants of Pursuit Rotor Performance and Reminiscence

A frustration theory of pursuit rotor performance and reminiscence has previously been presented (Costello, 1967; Costello & Discipio, 1967). The theory was reformulated in terms of arousal theory and the following hypotheses were tested: (1) an inverted “U” relationship exists between level of arousal and performance level; (2) reminiscence results when S during the rest period moves closer to his optimum level of arousal; (3) massed practice produces a higher level of arousal than spaced practice; (4) experimental conditions producing a high drive state will also increase his arousal level. Findings in line with these hypotheses were found for EMG measures but not for GSR and pulse rate. In view of what appears to be the task-specific nature of the physiological results it was concluded that there was no particular advantage in reformulating the frustration theory in terms of arousal theory.     

对历史的理解:寻求流逝时间中的绝对

人类历史经历各时代而被理解———被历史学家们、神学家们、哲学家们和普通凡人们理解———的方式本身 ,是一个历史研究的论题。笔者并无过高的意图 ,只是试图分析这种对历史的理解的一些显著的范例。本文的探讨将用“暂时”和“绝对”的观念来阐明 ,因为它们被历史编纂学家们与历史哲学家们以种种不同方式归属于历史现象。从表面看来 ,和自然科学相对比 ,历史学似乎完全属于暂时态的辖域。由于自然科学试图在确断、可定量的法则之网中把握现象之流 ,并专门致力于系统支配自然的绝对的法则 ,这种研究并无可应用于历史事件之处。在历史学中…     

学习任务要求与时间压力对实际自我调节学习活动的影响

探讨两种学习任务要求与两种时间压力是如何通过57名被试的临场情境评估状况而影响其实际自我调节学习活动水平的。结果表明,无论学习任务难易还是时间大小,被试的实际自我调节学习活动水平均存在显著差异;被试临场情境评估状况中的临场动机控制状况不存在显著差异,而临场主观目标存在显著差异;学习任务要求与时间压力对实际自我调节学习活动的影响是以被试的临场主观目标为中介的。     

学习判断与学习时间分配的关系

学习判断与学习时间分配的关系是元认知领域的重要问题, 对学习判断的研究在于使个体了解自己的学习和记忆活动, 从而有效控制学习过程, 合理分配学习时间, 这是元记忆监测影响控制的典型例子。近来有研究者提出学习时间分配不仅表现控制功能, 而且还表现监测功能。于是围绕学习时间的双重功能, 他们提出了元记忆监测与控制至少存在两种关系模型—— MC(监测影响控制)模型和CM(控制影响监测)模型, 后来又提出了两模型相互协同作用的合并动态模型—— 连续波浪型模式和同时发生模型。未来的研究应在继续验证MC模型和完善CM模型的基础上, 尝试检验两模型的合并动态模型。     

The Pursuit of Epistemic Good

Pace Zagzebski, there is no route from the value of knowledge to a non–reliabilist virtue–theoretic epistemology. Her discussion of the value problem is marred by an uncritical and confused employment of the notion of a "state" of knowledge, an uncritical acceptance of a "knowledge–belief" identity thesis, and an incoherent presumption that the widely held thought that knowledge is more valuable than true belief amounts to the view that knowledge is a state of true belief having an intrinsic property which a state of 'mere" true belief lacks. Her arguments against a "machine–product" conception of knowledge are undermined by these flaws, while the alternative "agent–act" model she recommends is unattractive, at odds with the knowledge–belief identity thesis she favours, and no solution to the problem of the value of knowledge she poses. I end with the observation that her version of virtue–theoretic epistemology points in the direction of cognitive decision–theoretic norms, and I briefly discuss the bearing of this fact upon her viewpoint.     

The Pursuit of Epistemic Good

Pace Zagzebski, there is no route from the value of knowledge to a non–reliabilist virtue–theoretic epistemology. Her discussion of the value problem is marred by an uncritical and confused employment of the notion of a "state" of knowledge, an uncritical acceptance of a "knowledge–belief" identity thesis, and an incoherent presumption that the widely held thought that knowledge is more valuable than true belief amounts to the view that knowledge is a state of true belief having an intrinsic property which a state of 'mere" true belief lacks. Her arguments against a "machine–product" conception of knowledge are undermined by these flaws, while the alternative "agent–act" model she recommends is unattractive, at odds with the knowledge–belief identity thesis she favours, and no solution to the problem of the value of knowledge she poses. I end with the observation that her version of virtue–theoretic epistemology points in the direction of cognitive decision–theoretic norms, and I briefly discuss the bearing of this fact upon her viewpoint.     

目标追求过程中的权力效应

权力在心理学中被定义为一种对他人施加影响的能力。理论和实证研究都表明, 个体在目标追求的过程中, 个体权力感的高低对个体的目标追求的认知过程和行为结果都会产生影响。具体表现为在认知加工方面, 高权力者的信息加工抽象程度更高, 注意保持和分配能力也更好; 在行为结果上, 高权力者能更果断地设定目标、目标追求的行动力也更强。在权力和目标追求关系中, 预期自我调节的倾向类型起到中介作用。     

The Pursuit of Status in Social Groups

ABSTRACT— Status differences are ubiquitous and highly consequential. Yet with regard to human social groups, basic questions persist about how status differences develop. In particular, little is known about the processes by which individuals pursue status in social groups. That is, how do individuals compete and jockey for status with their peers? The current paper reviews recent research that helps fill this gap in our knowledge. Specifically, studies of a variety of face-to-face groups show that individuals pursue status by enhancing the apparent value they provide to their group. Individuals compete for status not by bullying and intimidating others, as some theorists have proposed, but by behaving in ways that suggest high levels of competence, generosity, and commitment to the group.     

试析内隐学习的长时功效

内隐学习的长时功效是指 ,其发生是自动的 ,但是需要一定时间的练习积累 ;内隐学习的效果是抗干扰的 ,但是其进程仍然是动态发展的。长时功效的提出 ,促使人们在理论上反思内隐学习的特性、内隐学习和外显学习的关系、乃至整体的知识表征问题 ;在实践上则为内隐学习的合理诱发和充分利用提供了借鉴。     

The Sex Difference in Rotary Pursuit Performance

This study examined the hypothesis that male dominance in the acquisition and performance of rotary pursuit skill reflects a lower male proclivity for the generation and accumulation of reactive inhibition rather than some innately superior ability to profit from practice. On this hypothesis, the magnitude of male dominance should decline as the length of the intertrial interval increases. The experimental sample consisted of 120 Caucasian subjects (60 of each sex) who were given sixty 30-sec trials on rotary pursuit with intertrial intervals ranging from 0 to 40 sec. The principal finding was that the magnitude of the sex difference depended significantly upon the length of the intertrial interval, as hypothesized. When the interval was 10 sec or longer, performance levels of the sexes were essentially equal. The sex variance was reduced to insignificance even on the first trial when allowance was made for the inhibitory effect of practice. Thus, male dominance in rotary pursuit skill appears to be a procedural effect mediated by an inhibitory mechanism rather than a consequence of differential endowments of learning ability.     

Factor Retention Using Machine Learning With Ordinal Data

Determining the number of factors in exploratory factor analysis is probably the most crucial decision when conducting the analysis as it clearly influences the meaningfulness of the results (i.e., factorial validity). A new method called the Factor Forest that combines data simulation and machine learning has been developed recently. This method based on simulated data reached very high accuracy for multivariate normal data, but it has not yet been tested with ordinal data. Hence, in this simulation study, we evaluated the Factor Forest with ordinal data based on different numbers of categories (2–6 categories) and compared it to common factor retention criteria. It showed higher overall accuracy for all types of ordinal data than all common factor retention criteria that were used for comparison (Parallel Analysis, Comparison Data, the Empirical Kaiser Criterion and the Kaiser Guttman Rule). The results indicate that the Factor Forest is applicable to ordinal data with at least five categories (typical scale in questionnaire research) in the majority of conditions and to binary or ordinal data based on items with less categories when the sample size is large.     

诺贝尔科学奖与日本人的追求

诺贝尔科学奖是世界上对科学工作者最崇高、重要的奖励。事实证明,颁发此奖极有利于促进科学事业的发展。日本由技术革新到科学革新的变革,进而在新世纪的几年里连续获得诺贝尔奖,也说明科学创新的重要。