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251.
Granted the far-flung impacts of humanity on the future and the biosphere, Hans Jonas has rightly called for our responsibilities to be reconceptualised, and where responsibilities are non-reciprocal Chris Groves has put forward a model of the ethics of care to underpin them. In view, however, of Derek Parfit's work on responsibilities with regard to the possible but unidentifiable people of alternative possible futures, the author suggests that an ethical model grounded in relations, while helpful, is insufficient with regard to these impersonal responsibilities, and is not sufficiently strengthened by resorting to ‘constitutive value’. To meet the need for further models, he first presents two familiar ones (those of bequests or legacies and of stewardship or trusteeship), and then a new model appropriate for responsibilities towards unidentifiable parties, based on hospitality and generosity, and Jesus' parable of the great banquet as in Luke 14. This model also has its shortcomings, but could, alongside the others, assist people to take non-reciprocal responsibilities seriously.  相似文献   
252.
Action can affect visual perception if the action's expected sensory effects resemble a concurrent unstable or deviant event. To determine whether action can also change auditory perception, participants were required to play pairs of octave-ambiguous tones by pressing successive keys on a piano or computer keyboard and to judge whether each pitch interval was rising or falling. Both pianists and nonpianist musicians gave significantly more “rising” responses when the order of key presses was left-to-right than when it was right-to-left, in accord with the pitch mapping of the piano. However, the effect was much larger in pianists. Pianists showed a similarly large effect when they passively observed the experimenter pressing keys on a piano keyboard, as long as the keyboard faced the participant. The results suggest that acquired action–effect associations can affect auditory perceptual judgement.  相似文献   
253.
It is often claimed that elite professional athletes are role models and as such have certain duties to behave in morally appropriate ways. The argument is that given their influential status and influence, they should be good examples rather than bad ones. In relation to alcohol consumption and the problematic behaviours associated with excessive consumption, many professional athletes are bad role models. They consume too much and behave badly. Drawing on neo-Aristotelian insights I argue the following. First, persons who exhibit good character and virtues like self-control are preferable to those who exemplify vice like recklessness and selfishness in general and in relation to alcohol consumption in particular. To exhibit virtue is both good in itself and preferable from a moral education perspective. In other words it is better to exemplify virtue in front of others who may follow the example. Second, acting well and becoming the right sort is notoriously difficult and the moral atmosphere or the ethos of the culture in which virtue plays out has a significant impact. It is important therefore to include the ethos of sporting practice in any proposed reform of drinking behaviour such that tolerance and tacit promotion of masculine drinking practices is eschewed in favour of responsible and considerate consumption. Finally I argue that we must cultivate the proper virtue of emulation so that people who are admired or esteemed (sporting heroes) by young people in particular are not copied blindly. In other words it is important to cultivate a critical capacity to recognise worthy role models and to avoid identifying with unworthy characters, practices and vices. Part of this process is to highlight proper and worthy role models inside and outside of sport. In conclusion, I believe that although bad role models are grabbing the headlines in relation to problematic drinking practices, there are good role models in sport who should be lauded as exemplars of good character living a worthwhile sporting life. Such characters can show those inside and outside the practice community a more responsible and considerate approach to alcohol.  相似文献   
254.
The issue of how category variability affects classification of novel instances is an important one for assessing theories of categorisation, yet previous research cannot provide a compelling conclusion. In five experiments we reexamine some of the factors thought to affect participant performance. In Experiments 1 and 2, participants almost always classified the test item as belonging to the high variability category. By contrast, in Experiment 3 we employed an alternative experimental paradigm, where the difference in variability of the two categories was less salient. In that case, participants tended to classify a test item as belonging to the low variability category. Two additional experiments (4 and 5) explored in detail the differences between Experiments 1, 2 on the one hand, and 3 on the other. Some insight into the underlying psychological processes can be provided by computational models of categorisation, and we focus on the continuous version of Anderson's (1991) Rational Model, which has not been explored before in this context. The model predicts that test instances exactly halfway between the prototypes of two categories should be classified into the more variable category, consistent with the bulk of empirical findings. We also provided a comparison with a slightly reduced version of the Generalised Context Model (GCM) to show that its predictions are consistent with those from the Rational Model, for our stimulus sets.  相似文献   
255.
Recent studies in the psychological literature reveal that cospeech gestures facilitate the construction of an articulated mental model of an oral discourse by hearing individuals. In particular, they facilitate correct recollections and discourse-based inferences at the expense of memory for discourse verbatim. Do gestures accompanying an oral discourse facilitate the construction of a discourse model also by oral deaf individuals trained to lip-read? The atypical cognitive functioning of oral deaf individuals leads to this prediction. Experiments 1 and 2, each conducted on 16 oral deaf individuals, used a recollection task and confirmed the prediction. Experiment 3, conducted on 36 oral deaf individuals, confirmed the prediction using a recognition task.  相似文献   
256.
A perceptual learning experiment provides evidence that the mental lexicon cannot consist solely of detailed acoustic traces of recognition episodes. In a training lexical decision phase, listeners heard an ambiguous [f–s] fricative sound, replacing either [f] or [s] in words. In a test phase, listeners then made lexical decisions to visual targets following auditory primes. Critical materials were minimal pairs that could be a word with either [f] or [s] (cf. English knife–nice), none of which had been heard in training. Listeners interpreted the minimal pair words differently in the second phase according to the training received in the first phase. Therefore, lexically mediated retuning of phoneme perception not only influences categorical decisions about fricatives (Norris, McQueen, & Cutler, 2003), but also benefits recognition of words outside the training set. The observed generalization across words suggests that this retuning occurs prelexically. Therefore, lexical processing involves sublexical phonological abstraction, not only accumulation of acoustic episodes.  相似文献   
257.
258.
It is often argued that behaviour therapy and cognitive-behaviour therapy have a sound theoretical and experimental basis. In the early days of behaviour therapy, the learning theory accounts that were the basis of treatment made clear suggestions about the procedures that were likely to be effective in treatment. In contrast, more recent cognitive-behavioural models tend to specify targets for therapy, but not the procedures that might be optimal for changing the targets. As a consequence, a considerable amount of work has to be done in order to create an effective cognitive-behavioural treatment from a promising cognitive-behavioural model. The process by which cognitive-behavioural treatments are developed is rarely discussed in the literature. For this reason, the way in which one group has used a mixture of phenomenological, experimental and treatment development studies to create effective cognitive therapy programmes for anxiety disorders is described.  相似文献   
259.
260.
Many studies have observed phonetic and phonological differences between function words and content words. However, as many of the most commonly cited function words are also very high in frequency, it is unclear whether these differences are the result of syntactic category or word frequency. This study attempts to determine whether syntactically defined function words are indeed phonologically and phonetically reduced or assimilated when word frequency is balanced. Three experiments were designed to distinguish the relative contributions of the factors of category and frequency on phonetic and phonological reduction and assimilation. Overall results suggest that syntactic category and word frequency interact with phonetic and phonological processes in a more complex way than previously believed. Experiment 1 measured final t/d dropping, a reduction process, using electropalatography (EPG). Experiment 2 examined vowel reduction using acoustic measures. In Experiment 3, palatalization, an assimilation process, was examined using EPG. Results showed that t/d dropping responds to the factor of syntactic category, whereas palatalization is affected by word frequency; vowel reduction responded to both factors, with a dominant syntactic category effect and a secondary within-category frequency effect. The implications of these findings for models of lexical representation and theories of language acquisition are discussed.  相似文献   
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