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101.
Readers and writers of Spanish use an orthography that is highly transparent. It has been proposed that readers of Spanish can rely on grapheme-phoneme correspondences, alone, to access meaning or phonology from print. In recent years, a number of case studies have yielded evidence inconsistent with this idea. We review these studies with particular focus on those that report evidence for reading based on direct lexical mappings between print, orthographic representations, and meaning or phonology. We report a new case of acquired literacy impairment in Spanish, MJ, who presents a pattern of preserved abilities and deficits symptomatic of deep dyslexia. The patient is unable to read nonwords, but can read a substantial number of words. Her reading is characterized by the production of semantic, visual, and derivational errors. We argue that MJ has a deficit in her lexical selection ability, common to both her reading and her naming problems. We propose that MJ, and the other cases we review, demonstrate that lexical reading is adopted by skilled readers even in a transparent language. 相似文献
102.
Smallwood J Davies JB Heim D Finnigan F Sudberry M O'Connor R Obonsawin M 《Consciousness and cognition》2004,13(4):657-690
Three experiments investigated the relationship between subjective experience and attentional lapses during sustained attention. These experiments employed two measures of subjective experience (thought probes and questionnaires) to examine how differences in awareness correspond to variations in both task performance (reaction time and errors) and psycho-physiological measures (heart rate and galvanic skin response). This series of experiments examine these phenomena during the Sustained Attention to Response Task (SART, Robertson, Manly, Adrade, Baddeley, & Yiend, 1997). The results suggest we can dissociate between two components of subjective experience during sustained attention: (A) task unrelated thought which corresponds to an absent minded disengagement from the task and (B) a pre-occupation with one's task performance that seems to be best conceptualised as a strategic attempt to deploy attentional resources in response to a perception of environmental demands which exceed ones ability to perform the task. The implications of these findings for our understanding of how awareness is maintained on task relevant material during periods of sustained attention are discussed. 相似文献
103.
David Davies 《国际科学哲学研究》1999,13(3):231-244
Two questions are central to the “rationality debate” in the philosophy of social science. First, should we acknowledge differences in basic norms of epistemic and agential rationality, or in the content of perceptual experience, as the “best explanation” of radical differences in belief and practice? Second, can genuine understanding be achieved between cultures and research traditions that so differ in their beliefs and practices? I survey a number of responses to these questions, and suggest that one of these, “dialogical optimism”, while attractive, is in need of further clarification. Such clarification may be forthcoming if we attend to recent work by John McDowell. McDowell claims that perceptual experience, as our primary mode of epistemic access to the world, must be located within what Sellars termed the “space of reasons” if we are to make sense of our conception of ourselves as thinking creatures. I develop a reading of this claim in terms of a fundamental duality in human perceptual experience, and use this conception of experience to illuminate the dialogical optimist strategy in the rationality debate. 相似文献
104.
Facial memory draws upon both veridical detail and beliefs based upon prior knowledge and stereotypes. Shepherd, Ellis, McMurran,
and Davies (1978) demonstrated that subjects' perception and subsequent reconstruction of a face using the “Photofit” kit
was significantly influenced by whether they believed the person to be a multiple murderer or a local hero. The current study
explored whether similar effects would occur when the face involved was one of four male celebrities about which subjects
held pronounced positive or negative views and where reconstruction was accomplished using the computerised “E-fit” composite
system. Semantic differential ratings showed significant influences of liking on subjects' perception and reconstruction of
the faces involved, though the pattern of effects was not always readily predictable. Liking also influenced accuracy of reconstruction;
ranking and naming data showed that the best composites were made by subjects who disliked the target and made their reconstructions
with the aid of a photograph. 相似文献
105.
Facial memory draws upon both veridical detail and beliefs based upon prior knowledge and stereotypes. Shepherd, Ellis, McMurran,
and Davies (1978) demonstrated that subjects' perception and subsequent reconstruction of a face using the “Photofit” kit
was significantly influenced by whether they believed the person to be a multiple murderer or a local hero. The current study
explored whether similar effects would occur when the face involved was one of four male celebrities about which subjects
held pronounced positive or negative views and where reconstruction was accomplished using the computerised “E-fit” composite
system. Semantic differential ratings showed significant influences of liking on subjects' perception and reconstruction of
the faces involved, though the pattern of effects was not always readily predictable. Liking also influenced accuracy of reconstruction;
ranking and naming data showed that the best composites were made by subjects who disliked the target and made their reconstructions
with the aid of a photograph. 相似文献
106.
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109.
Win-shift spatial memory tasks in a radial maze reinforce animals for avoiding previously visited rewarded arms; win-stay tasks reinforce them for returning to those arms. Win-shift tasks have generally been found much easier to perform, and this may be explained either in terms of foraging models which postulate avoidance of locations where food has been found, or in terms of the predominance of spontaneous alternation (exploration). Experiment 1 examined spontaneous alternation behavior in the radial maze as a function of whether the first visit to an arm had been rewarded or not, and showed that alternation was more probable after nonreward than after reward in both hungry and thirsty rats (a result which conflicts with the foraging account of the win-shift superiority). Experiment 2 replicated the finding that win-stay discrimination performance was inferior to win-shift. A manipulation (lengthening the delay between initial and test choices) which weakens spontaneous alternation, reduced, but did not reverse, the win-shift superiority. In Experiment 3, in order to eliminate the influence of spontaneous alternation, versions of the win-stay and win-shift tasks were devised in which, unlike the original task, all arms were familiar at the choice trial. Under those conditions win-stay was performed better than win-shift. It is concluded that spontaneous alternation plays a major role in many spatial memory tasks, and that the results can best be accounted for by combining principles of exploration and simple associative learning, without recourse to foraging models. 相似文献
110.
Understanding the mind as an active information processor: do young children have a "copy theory of mind"? 总被引:2,自引:0,他引:2
Most 4-, but no 3-year-olds, were able to understand the mind's active role in evaluating the truth of verbal information. They appreciated that a statement, whether true or false, will be disbelieved if the listener has existing beliefs to the contrary and that it will be believed if no such beliefs exist. Four- and 5-year-olds were equally competent in understanding the need for interpretation of pictorial material. They realized that an uninitiated person cannot make sense of a "droodle", which in itself is an uninterpretable section of a larger meaningful drawing. We discuss the impact of our findings on the question of whether children at this age entertain a copy theory of mind. 相似文献