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31.
George Botterill 《International Journal of Philosophical Studies》2013,21(4):463-488
Abstract Davidson argued that the fact we can have a reason for acting, and yet not be the reason why we act, requires explanation of action in terms of the agent's reasons to be causal. The present paper agrees with Dickenson (Pacific Philosophical Quarterly, 2007) in taking this argument to be an inference to the best explanation. However, its target phenomenon is the very existence of a case in which an agent has more than one reason, but acts exclusively becaue of one reason. Folk psychology appears to allow for this phenomenon. However, appreciation of ‘rationalization’ as a form of contrastive explanation reveals the existence of the Davidsonian possibility to the problematic. Claims that ‘I did it because of R1, not because of R2’ are entertained in folk psychology, and may be sincere or insincere. But as reports of conscious practical reasoning, even when sincere, they are not authoritative about the mechanism of motivation. 相似文献
32.
Jon K. Mills 《The Journal of psychology》2013,147(6):667-674
Interpersonal dependency and locus of control orientation were studied in obese and nonobese samples. The Interpersonal Dependency Inventory (Hirschfeld, Klerman, Gough, Barrett, & Korchin, 1977) and the I-E Scale (Rotter, 1966) were administered to 106 obese adults in outpatient treatment for obesity. The I-E Scale was also administered to 97 nonobese control subjects. As predicted, the obese subjects were significantly more internally oriented than has been previously identified in obese populations. These findings challenge currently held assumptions about locus of control in obese groups. Although the obese and nonobese subjects maintained similar overall dependency scores, the obese subjects were more likely to show low levels of autonomy in comparison with the nonobese subjects. Interpersonal dependency and locus of control dimensions associated with obese conditions may serve as useful predictor variables influencing obesity treatment approaches and outcome. 相似文献
33.
Brad Weslake 《Australasian journal of philosophy》2013,91(4):785-797
If counterfactual dependence is sufficient for causation and if omissions can be causes, then all events have many more causes than common sense tends to recognize. This problem is standardly addressed by appeal to pragmatics. However, Carolina Sartorio [2010] has recently raised what I shall argue is a more interesting problem concerning omissions for counterfactual theories of causation—more interesting because it demands a more subtle pragmatic solution. I discuss the relationship between the idea that causes are proportional to their effects, the idea that causation is contrastive, and the question of the dimensions along which causal explanations should be evaluated with respect to one another. 相似文献
34.
Attentional effects of letter cues on target processing were investigated in a bilateral spatial cueing paradigm. Luminance contrast of the cue stimuli and of the target stimuli were both manipulated. Consistent with predictions derived from theoretical models of visual attention, manipulating cue luminance and target luminance had very different effects on performance. In agreement with the dorsal stream attention hypothesis (Marrett et al., 2011) orienting effects were unaffected by changes in cue luminance; but in agreement with the work of Reynolds, Pasternak, and Desimone (2000) and Carrasco, Ling, and Read (2004) orienting effects were strongly modulated by changes in the luminance and perceptual quality of the target. Theoretical implications of the results are considered and the data are explained in terms of a sensory enhancement effect, whereby attention amplifies the neuronal responses for attended stimuli. 相似文献
35.
C. Neil Macrae Aleksandar Visokomogilski Marius Golubickis Arash Sahraie 《Visual cognition》2013,21(7):475-481
ABSTRACTConsiderable efforts have focused on elucidating the influence that self-relevance exerts on perceptual decision-making. To explore this issue further, the current research explored the extent to which stimulus applicability facilitates the benefits of covert attention on early visual processing. In two experiments, we manipulated the personal-relevance of peripheral cues (i.e., geometric shapes) that preceded the appearance of target stimuli (i.e., Gabors) and asked participants to report the orientation of the stimulus with the highest contrast. The results revealed a significant effect of self-relevance on task performance. First, compared to cues associated with a friend or stranger, self-relevant cues enhanced the apparent contrast of a stimulus. Second, the benefits of self-relevance were most pronounced when cues pertained to identities that were significant (vs. trivial or irrelevant) to observers. Together, these findings demonstrate that self-relevance potentiates the benefits of transient attention on stimulus processing. 相似文献
36.
Elizabeth G. Conlon Donnamay T. Brown Garry F. Power Shannon A. Bradbury 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(3):322-339
This study aimed to determine if difficulties extracting signal from noise explained poorer coherent motion thresholds in older individuals, particularly women. In four experimental conditions the contrast of the signal and noise dots used in a random dot kinematogram was manipulated. Coherence thresholds were highest when the signal dots were of a lower contrast than the noise dots and lowest when the signal dots were of a higher contrast than the noise dots. In all conditions the older group had higher coherence thresholds than the younger group, and women had higher thresholds than men. Significant correlations were found between coherence thresholds and self-reported driving difficulties in conditions in which the signal dots had to be extracted from noise only. The results indicate that older individuals have difficulties extracting signal from noise in cluttered visual environments. The implications for safe driving are discussed. 相似文献
37.
大鱼小池效应(Big Fish Little Pond Effect)是解释不同教育情境中学生自我概念水平的一个特定概念,Marsh将其定义为:能力同等的学生,在平均成绩较高的学校或班级里的学业自我概念较低,而在平均成绩较低的学校或班级则学业自我概念会较高。大鱼小池效应包括学生采用概括他人和特定他人的比较标准所分别产生的同化效应和对比效应,社会比较对学业自我概念形成具有特定影响。大鱼小池效应的未来研究可以从研究方法的改进、调节变量的控制和跨文化比较等方面拓展。 相似文献
38.
DNA作为生物遗传物质,它的发现是一个伟大的历史事件,具有所有科学发现的共性,回顾一个世纪的DNA发现的科学史,可以升华出许多的哲学观点和理论。经验和推理是科学赖以建立的两根支柱,一定历史条件下学科的交叉与渗透对科学发现有重大意义。分析科学的继承与DNA双螺旋结构的提出、DNA双螺旋发现中科学家的创造性思维及思维方式的选择等几个方面,旨在总结科学发展的经验,从而更加理性、主动地发展科学。 相似文献
39.
领导表达愤怒情绪一定不好吗?最近研究发现,领导表达愤怒情绪对领导绩效(任务绩效和关系绩效)存在积极影响与消极影响的不一致结论。文章尝试使用双阈限模型揭示领导的愤怒情绪产生积极影响或消极影响的边界条件。进一步明确领导表达愤怒情绪的阈限是影响领导绩效的关键因素,拓展了双阈限模型对领导愤怒情绪影响其领导绩效的理论解释。 相似文献
40.
Two pigeons had access to multiple concurrent schedules of reinforcement for 24 hours per day in their home cages. The variable-interval schedules comprising the multiple concurrent schedules were varied across 16 conditions. In three sets of conditions, one schedule was varied while its concurrent alternative and the concurrent schedules in the other component were held constant. Behavioral contrast was observed; that is, as the rate of reinforcement arranged by the varied schedule decreased, response rates on the constant schedules typically increased. These conditions formed part of two larger sets of conditions in which the concurrent schedules in one multiple-schedule component remained constant while the concurrent schedules in the other component were varied. Successive independence was found, in that behavior allocation during the constant component did not vary as a function of the reinforcer ratios in the varied component. Successive independence between components in multiple concurrent schedules is a robust result that occurs in closed economies and under conditions that promote behavioral contrast. 相似文献