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61.
《Quarterly journal of experimental psychology (2006)》2013,66(12):2360-2380
Implicit learning is the acquisition of complex information without the intention to learn. The aim of this study was to investigate the influence of temporal regularities on the implicit learning of an artificial pitch grammar. According to the dynamic attending theory (DAT) external regularities can entrain internal oscillators that guide attention over time, inducing temporal expectations that influence perception of future events. In the present study, the presentation of the artificial pitch grammar in the exposure phase was temporally either regular or irregular for one of two participant groups. Based on the DAT, it was hypothesized that the regular temporal presentation would favour implicit learning of tone structures in comparison to the irregular temporal presentation. Results demonstrated learning of the artificial grammar for the group with the regular exposure phase and partial learning for the group with the irregular exposure phase. These findings suggest that the regular presentation helps listeners to develop perceptual expectations about the temporal occurrence of future tones and thus facilitates the learning of the artificial pitch grammar. 相似文献
62.
Abstract Gibbs and O'Brien (1990) recently claimed that the images that people associate with everyday idioms reflect the deep conceptual metaphors that underlie the meanings of those idioms. However, because idiomatic strings can convey both a literal and an idiomatic meaning, people must be able to inhibit or ignore literal meanings if they are to produce mental images that uniquely reflect idiomatic meanings. We investigated the potential interference between literal and idiomatic meanings in three experiments. Experiment 1 used a mental-image production task similar to that used by Gibbs and O'Brien. Counter to Gibbs and O'Brien's claim, the images that we obtained referred overwhelmingly to the literal meanings of idiomatic strings rather than to their idiomatic meanings. Experiments 2 and 3 employed a paraphrase verification task to examine the effects of mental imagery on idiom comprehension. If the images associated with an idiom reflect that idiom's meaning, then imagery should facilitate comprehension. No evidence for facilitation was found in either experiment. Instead, imagery interfered with comprehension, as assessed by paraphrase verification time, both for idiomatic meanings and for literal, concrete meanings. We conclude that the images associated with idioms do not reflect idiom meanings. 相似文献
63.
《Journal of Cognitive Psychology》2013,25(5):497-510
Repeatedly performing a temporal reproduction task has been reported to increase reproduced durations. We report the novel finding that the second reproduction in a series is selectively enhanced relative to the first. This was true regardless of whether the responses were discrete (separate start and stop responses) or contiguous (stop response is the start of the next response). In a final experiment we test the hypothesis that the second reproduction is more influenced by the central tendency of previously experienced durations than is the first. These results are discussed in terms of two sources of performance uncertainty: temporal remoteness of the second and subsequent reproductions from the standard and trial-by-trial unpredictability of the standard in random but not blocked designs. 相似文献
64.
This article provides an overview of recent developments in solving the timing problem (discreteness vs. continuity) in cognitive neuroscience. Both theoretical and empirical studies have been considered, with an emphasis on the framework of operational architectonics (OA) of brain functioning (Fingelkurts and Fingelkurts in Brain Mind 2:291-29, 2001; Neurosci Biobehav Rev 28:827-836, 2005). This framework explores the temporal structure of information flow and interarea interactions within the network of functional neuronal populations by examining topographic sharp transition processes in the scalp EEG, on the millisecond scale. We conclude, based on the OA framework, that brain functioning is best conceptualized in terms of continuity-discreteness unity which is also the characteristic property of cognition. At the end we emphasize where one might productively proceed for the future research. 相似文献
65.
Boredom is a common experience in healthy individuals and may be elevated in various neurological or psychiatric conditions. As yet, very little is known about the cognitive or neural bases of the subjective experience of boredom. We examined temporal perception and the temporal allocation of attention in healthy individuals reporting high- or low-levels of boredom. We found no difference in high- or low-boredom-prone individuals in the temporal allocation of attention, while individuals who experienced low-levels of boredom tended to underestimate time more so than high-boredom-prone individuals. Furthermore, high-boredom-prone individuals demonstrated higher error values when estimating time indicating that the subjective perception of the passage of time may be a critical component to the experience of boredom. 相似文献
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67.
In this article I will address the question of determining the moral limits of reproductive decisions. In so doing I will
examine the contributions made by John Harris, who has over the years consistently addressed the ethical implications of advancing
reproductive technologies. In addressing these matters, Harris has centred his arguments on the principle of harm and with
this in mind has set out a specific theoretical framework from which decisions about disability and causing harm, as in the
case of reproductive decisions, can be rationally addressed. This discussion will attempt to question the conceptual scheme
that he proposes. The aim here is not to present an alternative theoretical contribution to the morality of reproductive choice.
Rather, in the attempt to follow some of the directives in Wittgenstein’s later philosophy, the aim is to demonstrate some
of the pitfalls of what Wittgenstein has described as the “craving for generality” in contemporary philosophy. I propose that
this craving can distort, in this instance, our ordinary usage of concepts such as harm, suffering and disability and their
role in the moral vocabulary of reproductive decision making 相似文献
68.
徐钤 《医学与哲学(人文社会医学版)》1999,20(10):12-14
寄生物(包括寄生虫,细菌,真菌,立克次体,病毒等)虽依赖宿主而生存,却不一定对宿主致病,有的反而对宿主有益,根据达尔文的进化论,“自然选择”要求生物在进化中要不断适应环境,适应是生存最重要的条件,不能适应必将死亡,据此,本文对一些常见的自然因素对于宿主和寄生物两方面进行了初步分析,包括寄生物在宿主体内的繁殖速度,寄生物所引起的宿主的症状,其生现象的出现等,并对晚近发现的朊病毒,发生“星际传染性”的 相似文献
69.
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