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71.
A novel lattice correspondence of B19 → B19′ transformation in Ti–Ni–Cu shape memory alloy thin film
In this study, we found a novel lattice correspondence of the B19–B19′ transformation in a Ti–Ni–Cu thin film: (1?1?1)B19′//(0?0?1)B19, [0, 1, 1]B19′//[1?0?0]B19. Near the coarse precipitate and the grain boundaries, the B19′ martensite forms with the novel lattice correspondence to product the (1?1?1) type I twinning instead of the usual (0?0?1) compound twinning. Crystallographic analyses show that the novel lattice correspondence results from the local stress concentration. 相似文献
72.
Informed consent, decision-making styles and the role of patient–physician relationships are imperative aspects of clinical medicine worldwide. We present the case of a 74-year-old woman afflicted with advanced liver cancer whose attending physician, per request of the family, did not inform her of her true diagnosis. In our analysis, we explore the differences in informed-consent styles between patients who hold an “independent” and “interdependent” construal of the self and then highlight the possible implications maintained by this position in the context of international clinical ethics. Finally, we discuss the need to reassess informed-consent styles suitable to the needs of each patient regardless of whether he or she resides in the United States or in Japan. 相似文献
73.
This study used data from 220 adults to examine the relations among 3 inhibition-related functions. Confirmatory factor analysis suggested that Prepotent Response Inhibition and Resistance to Distractor Interference were closely related, but both were unrelated to Resistance to Proactive Interference. Structural equation modeling, which combined Prepotent Response Inhibition and Resistance to Distractor Interference into a single latent variable, indicated that 1 aspect of random number generation performance, task-switching ability, and everyday cognitive failures were related to Response-Distractor Inhibition, whereas reading span recall and unwanted intrusive thoughts were related to Resistance to Proactive Interference. These results suggest that the term inhibition has been overextended and that researchers need to be more specific when discussing and measuring inhibition-related functions. 相似文献
74.
We report the case of a 25-year-old healthy, blind male, MT, who experiences normal patterns of déjà vu. The optical pathway delay theory of déjà vu formation assumes that neuronal input from the optical pathways is necessary for the formation of the experience. Surprisingly, although the sensation of déjà vu is known to be experienced by blind individuals, we believe this to be the first reported application of this knowledge to the understanding of the phenomenon. Visual input is not present in MT, yet the experiences he describes are consistent with reports in the literature of déjà vu occurrence in sighted people. The fact that blind people can experience déjà vu challenges the optical pathway delay theory, and alternative causes are briefly discussed. 相似文献
75.
Not all executive functions are related to intelligence 总被引:1,自引:0,他引:1
Friedman NP Miyake A Corley RP Young SE Defries JC Hewitt JK 《Psychological science》2006,17(2):172-179
Accumulating evidence suggests that executive functions (EFs) are related to intelligence, despite neuropsychological results initially considered evidence of no such relation. However, findings that EFs are not unitary raise the issue of how intelligence relates to different EFs. This study examined the relations of fluid and crystallized intelligence and Wechsler Adult Intelligence Scale IQ to three separable EFs--inhibiting prepotent responses (inhibiting), shifting mental sets (shifting), and updating working memory (updating)--in young adults. Updating was highly correlated with the intelligence measures, but inhibiting and shifting were not. Furthermore, in structural equation models controlling for the inter-EF correlations, updating remained strongly related to intelligence, but the relations of inhibiting and shifting to intelligence were small and not significant. The results indicate that intelligence measures differentially relate to these three EFs, suggesting that current intelligence measures do not equally assess a wide range of executive control abilities likely required for many "intelligent" behaviors. 相似文献
76.
Inner speech as a retrieval aid for task goals: the effects of cue type and articulatory suppression in the random task cuing paradigm 总被引:2,自引:0,他引:2
Articulatory suppression has been shown to increase switch costs in the list paradigm (e.g., [J. Exp. Psychol.: General 130 (2001) 641, J Memory Language 48 (2003) 148]). The present dual-task study examined whether this effect generalizes to the random task cuing paradigm. Participants performed color or shape judgments according to explicit word cues (COLOR or SHAPE) or less transparent letter cues ( C for the color task and S for the shape task). In the word cue condition, the switch cost was equivalent for the articulatory suppression and the control (no dual-task) conditions, but, in the letter cue condition, the switch cost was significantly greater for the articulatory suppression condition than for the control condition. These results suggest that inner speech may be recruited as a tool for retrieving and activating the relevant task goal when the task cue is not transparent and hence imposes nonnegligible retrieval demand. 相似文献
77.
Azuma T Shimizu A Yamashita K Iwase M Kajimoto O Tatsumoto Y Sumitsuji N 《Perceptual and motor skills》2003,96(2):481-491
Long-term recording of activity of the zygomatic muscle, the most important mimic muscle involved in smiling, was performed in 22 disorganized type schizophrenic patients with inappropriate smiles and 15 normal subjects in two separate experiments. During inappropriate smiles, the zygomatic muscle exhibited waxing and waning bursts of activity with an amplitude of 75 to 120 microV, which could not be distinguished from the activity observed during usual smiling in normal subjects. However, the duration of such activity tended to be longer when compared to that in usual smiling by normal subjects as well as by schizophrenic patients. In contrast to usual smiles, inappropriate smiles decreased with personal contact. When asked about their thoughts during smiling shortly after inappropriate smiles, more patients reported that they thought of nothing at all or something not necessarily pleasant rather than something pleasant that would be expected to induce smiling. 相似文献
78.
The question of socio-cultural relativism or universalism in aesthetic judgment is dealt with in a cross-cultural study of musical preferences. Four groups of subjects were compared: Japanese expert musicians, French professional musicians, French students in music and French non-musician students. Their task was to state their preference for one of the elements in ten pairs of excerpts of traditional Japanese music, representing three levels of complexity (Koto, Trio, Gagaku). In addition, the subjects were asked to give a general appreciation of the three styles. The analysis of the preferences was performed in three ways: intra-group and inter-groups variabilities were computed as well as the variability due to the musical style. The results can be summarized as follows: as far as a group judgment is possible in one or another culture (intra-group agreement), the preferences of two culturally different groups do not contrast as long as the judgment concerns rather simple objects; the degree of inter-cultural agreement, far from increasing with musical competence, decreases. On the other hand, the judgments of more complex pieces show an agreement only in groups with musical skill and, in this case, the preference of Japanese and French musicians are contrasting. Finally, it is pointed out that a minimal attractiveness of the material presented is necessary to obtain from the subjects valid comparisons instead of artificial. 相似文献
79.
A simple device is described with which the occurrence of saccades can be detected and their intervals classified by reference intervals determined by experimental requirements. The device reliably detects saccades of greater than 2 deg. 相似文献
80.
The dual-task paradigm has been used to examine the role of the central executive in various cognitive tasks. In these studies, performance decrements in primary cognitive tasks performed concurrently with secondary executive tasks have been interpreted as evidence for the involvement of the central executive in those primary tasks. In the present study, we examined the effects of different secondary tasks on performance of three psychometric visuospatial tasks. The decrement in performance of these tasks when they were paired with secondary executive tasks was smallest for the psychometric task considered to most heavily involve the central executive and largest for the task considered least demanding of executive mechanisms. We propose that, when applied to the assessment of central executive involvement, the prevalent simple dual-task logic does not always apply. Special conditions that limit the application of the dual-task methodology include two inherently related factors--a response selection bottleneck and a strategic tradeoff between primary and secondary tasks. 相似文献