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71.
Daniel R. Little Raoul Oehmen John Dunn Kathryn Hird Kim Kirsner 《Behavior research methods》2013,45(1):191-202
The temporal characteristics of speech can be captured by examining the distributions of the durations of measurable speech components, namely speech segment durations and pause durations. However, several barriers prevent the easy analysis of pause durations: The first problem is that natural speech is noisy, and although recording contrived speech minimizes this problem, it also discards diagnostic information about cognitive processes inherent in the longer pauses associated with natural speech. The second issue concerns setting the distribution threshold, and consists of the problem of appropriately classifying pause segments as either short pauses reflecting articulation or long pauses reflecting cognitive processing, while minimizing the overall classification error rate. This article describes a fully automated system for determining the locations of speech–pause transitions and estimating the temporal parameters of both speech and pause distributions in natural speech. We use the properties of Gaussian mixture models at several stages of the analysis, in order to identify theoretical components of the data distributions, to classify speech components, to compute durations, and to calculate the relevant statistics. 相似文献
72.
Vukovic J Jones BC Feinberg DR Debruine LM Smith FG Welling LL Little AC 《British journal of psychology (London, England : 1953)》2011,102(1):37-48
Several studies have found that women tend to demonstrate stronger preferences for masculine men as short-term partners than as long-term partners, though there is considerable variation among women in the magnitude of this effect. One possible source of this variation is individual differences in the extent to which women perceive masculine men to possess antisocial traits that are less costly in short-term relationships than in long-term relationships. Consistent with this proposal, here we show that the extent to which women report stronger preferences for men with low (i.e., masculine) voice pitch as short-term partners than as long-term partners is associated with the extent to which they attribute physical dominance and low trustworthiness to these masculine voices. Thus, our findings suggest that variation in the extent to which women attribute negative personality characteristics to masculine men predicts individual differences in the magnitude of the effect of relationship context on women's masculinity preferences, highlighting the importance of perceived personality attributions for individual differences in women's judgments of men's vocal attractiveness and, potentially, their mate preferences. 相似文献
73.
74.
Benedict C. Jones David R. Feinberg Patricia E. G. Bestelmeyer Lisa M. DeBruine Anthony C. Little 《Psychonomic bulletin & review》2010,17(4):522-528
We investigated the effects of adaptation to mouth shapes associated with different spoken sounds (sustained /m/ or /u/) on
visual perception of lip speech. Participants were significantly more likely to label ambiguous faces on an /m/-to-/u/ continuum as saying /u/ following adaptation to /m/ mouth shapes than they
were in a preadaptation test. By contrast, participants were significantly less likely to label the ambiguous faces as saying /u/ following adaptation to /u/ mouth shapes than they were in a preadaptation
test. The magnitude of these aftereffects was equivalent when the same individual was shown in the adaptation and test phases
of the experiment and when different individuals were presented in the adaptation and test phases. These findings present
novel evidence that adaptation to natural variations in facial appearance influences face perception, and they extend previous
research on face aftereffects to visual perception of lip speech. 相似文献
75.
Ric G. Steele Todd D. Little Stephen S. Ilardi Rex Forehand Gene H. Brody Heather L. Hunter 《Journal of child and family studies》2006,15(6):773-788
We examined the factor structure of the Children's Depression Inventory (CDI) among a sample of 523 African American children (m age = 12.76) and a sample of 564 European American youth (m age = 12.43). Previous investigations have produced discrepant factor structures among samples of predominantly majority-culture children, but fewer investigations of the factor structure of the CDI have been conducted among non-European American samples. Confirmatory factor analyses of the original 5 factors identified by Kovacs (1983, 1991) revealed that the items had invariant measurement properties across the samples. The latent factor structure, however, revealed telling differences between the two samples. For European American youth, only one of the original five factors was meaningfully differentiated from the others, whereas for the African American youth, two of the factors clearly emerged as unique facets of depression. Consistent with other reports, between-group mean differences on the CDI and its factors were noted. We argue that further validation of the CDI among traditionally underserved populations is warranted. Predictive validation investigations, in particular, are needed to examine the relationship between CDI factor scores and clinical outcomes. 相似文献
76.
Durable and generalized effects of spatial experience on mental rotation: gender differences in growth patterns 总被引:1,自引:0,他引:1
Melissa S. Terlecki Nora S. Newcombe Michelle Little 《Applied cognitive psychology》2008,22(7):996-1013
This study addressed questions about improvement in mental rotation skills: (1) whether growth trajectories differ for men and women with higher or lower spatial experience, (2) whether videogame training has effects on performance and leads to transfer, (3) whether effects of repeated testing or training effects are durable and (4) whether transfer is durable. Undergraduates participated in repeated testing on the MRT or played the videogame Tetris. Analyses showed large improvements in mental rotation with both repeated testing and training; these gains were maintained several months later. MRT scores of men and women did not converge, but men showed faster initial growth and women showed more improvement later. Videogame training showed greater initial growth than repeated testing alone, but final performance did not differ. Effects of videogame training transferred to other spatial tasks exceeding the effects of repeated testing, and this transfer advantage was still evident after several months. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
77.
The purpose of the present investigation was to extend the research related to the possible negative side effects of extrinsic reinforcement on children's compliant behavior, particularly the overjustification effect. Specifically, this study examined the effects of a token reinforcement procedure in a naturalistic environment (third grade classroom) on children's compliance with classroom rules. Three students exhibiting high compliance with classroom rules were selected. Results indicated that the introduction of a token reinforcement program contingent on the occurrence of rule compliance had no detrimental effect on their rule compliant behavior following the withdrawal of the token procedure (i.e., comparison of Baseline I and Baseline II). Thus, the overjustification effect was not supported. 相似文献
78.
Lisa L.M. Welling Lisa M. DeBruine Anthony C. Little Benedict C. Jones 《Personality and individual differences》2009,47(8):996-998
Extraversion is positively associated with various indices of women’s mate quality (e.g., facial symmetry and attractiveness). Since such indices are thought to predict variation in women’s preferences for masculine men, we investigated the relationships between each of the ‘Big 5’ personality factors and women’s preferences for facial masculinity. Extraversion, but not the other four personality factors, was positively correlated with women’s preferences for masculinity in men’s, but not women’s, faces. Additionally, extraversion mediated the positive relationship between women’s self-rated attractiveness and their preferences for masculinity in men’s faces, suggesting that extraversion may play a role in condition-dependent mate preferences. Unexpectedly, openness to experience was associated with women’s preferences for femininity in faces of both sexes and this association was independent of that between extraversion and women’s preferences for masculine men. This is the first study that we know of to implicate personality traits in individual differences in women’s preferences for masculine men. 相似文献
79.
80.
The ethical problems surrounding voluntary assisted suicide remain formidable, and are unlikely to be resolved in pluralist societies. An examination of historical attitudes to suicide suggests that modernity has inherited a formidable complex of religious and moral attitudes to suicide, whether assisted or not. Advocates usually invoke the ending of intolerable suffering as one justification for euthanasia of this kind. This does not provide an adequate justification by itself, because there are (at least theoretically) methods which would relieve suffering without causing the physical death of the suffering person. Carried to extremes, these methods would finish the life worth living, but leave a being which was technically alive. Such acts, however, would provide no moral escape, since they would create beings without meaning. Arguments seeking to justify ending the lives of others need some grounding in concepts of the meaning of a life. The euthanasia discourse therefore needs to take at least some account of the meaning we construct for our lives and the lives of others. 相似文献