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Melissa A. Redford Barbara L. Davis Risto Miikkulainen 《Infant behavior & development》2004,27(4):477-498
Spontaneous speech acoustics are highly variable. Such variability may be problematic for infants relying on phonological form to solve the segmentation problem. In the present study, acoustic measures of vowel duration and a computer model of speech segmentation were used to evaluate the problem of phonetic variability for a rhythm-based speech segmentation strategy. The specific questions under study were (1) whether or not mothers realized disyllabic vowel duration patterns consistently in spontaneous infant-directed speech, and (2) whether or not these patterns were distinctive enough in the context of an utterance to provide a useful cue for speech segmentation. Data from four English-speaking mothers indicated that the trochaic-like duration pattern may interact with phrase-position and with grammatical category, but when the resulting patterns are consistent, they provide useful segmentation cues for spontaneous infant-directed speech. 相似文献
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895.
序列呈现的刺激可以被并行的加工:来自注意瞬脱研究的证据 总被引:3,自引:0,他引:3
采用RSVP范式验证了两个序列呈现的刺激可以被并行加工的假设。实验一发现:在两个目标刺激(Target和Probe,以下简称T和P)间无干扰刺激时,T的反应时随着T、P之间的间隔显著减小,其模式符合并行加工模型的预测。而实验二发现:当T和P之间有干扰刺激(即T后呈现后续掩蔽)时,T的反应时并不随着T、P的间隔而减小,其模式符合序列加工模型的预测。由此可推论,只要两个序列呈现的刺激之间没有干扰刺激,可以对他们进行并行的注意加工,但是会受到两个刺激之间的时间间隔的影响。 相似文献
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Gregory R. Peterson 《Zygon》2004,39(3):541-554
Abstract. Adapted from the introductory chapter of Minding God: Theology and the Cognitive Sciences (Peterson 2003), I here lay out a general approach for a dialogue between theology and cognitive science. Key to this task is an understanding of theology as the science or study of meaning and purpose. I give reasons why theology should be thought of in this sense and the potential fruitfulness of this approach. 相似文献
898.
Marcel A. van den Hout Iris M. Engelhard 《Journal of psychopathology and behavioral assessment》2004,26(3):181-183
Earlier studies found that self-reported posttraumatic stress disorder (PTSD) symptoms are correlated with negative appraisals of symptoms and with neuroticism. It is unclear whether the latter two are associated. Possibly, an overarching trait such as neuroticism mediates the relationship between PTSD symptoms and negative appraisals of symptoms. Data from a previous study (see I. M. Engelhard, M. A. van den Hout, M. Kindt, A. Arntz, & E. Schouten, 2003) were used in the present effort to address these issues. Neuroticism scores were obtained from 1,372 pregnant women. One hundred and twenty-six women experienced a pregnancy loss, and 117 of them were assessed for PTSD symptoms and negative appraisals of symptoms. The 3 variables of interest were all significantly correlated. The data indicate that negative appraisals of symptoms explain and predict PTSD symptoms independently of neuroticism. 相似文献
899.
George R. Holmes Aldo Galeazzi Emilio Franceschina George F. McNulty Angela Q. Forand Sandra R. Stader deRosset Myers Jr. Harry H. Wright 《Journal of Behavioral Education》2004,13(2):117-133
The School Reinforcement Survey Schedule (SRSS) was administered to 2,828 boys and girls in middle schools in the United States and an Italian translation was administered to 342 boys and girls in middle schools in Northern Italy. An exploratory factor analysis using half the American data set was performed using maximum likelihood estimation with a promax rotation. This analysis produced a structural equation model with six interpretable latent variables. This analysis was confirmed by results demonstrating a good fit with the other half of the American sample and separately with the Italian sample. Scores for the six latent variables were constructed and information about the distribution of scores was obtained. Multiple comparisons of the means were performed by gender, within each national sample, for each of the six latent variables. American and Italian girls report obtaining greater enjoyment from a wider variety of school activities compared to American and Italian boys. 相似文献
900.
Richard M. Shewchuk Patricia A. Rivera Timothy R. Elliott Alice M. Adams 《Journal of clinical psychology in medical settings》2004,11(3):141-150
Individuals who provide ongoing care for family members who have a chronic disease or disability are likely to encounter a wide array of problems that can compromise their own health and their ability to function effectively in a caregiving role. Structured focus group meetings were conducted to elicit a comprehensive list of the problems that caregivers experienced during their first year of providing care to a person with a severe physical disability. A separate group of caregivers (N = 60) individually sorted problems into piles based on their similarity and assigned relative importance to each problem. The aggregated data were analyzed with multidimensional scaling and hierarchical cluster analysis. Results indicated that caregivers cognitively organize problems along three dimensions: I. Centeredness–caregiver versus patient-oriented; II. Relationship Demands–physical versus emotional; and III. Caregiver Burden–time versus emotional. Additionally, 6 clusters of substantively similar problems were identified and prioritized in terms of personal relevance: Basic Needs (lowest); Perceived Constraints; Caregiver Challenges; Patient Resentment; Patient Withdrawal; and Patient Intrapsychic Adjustment (highest). Further examination of the organization of problems identified by caregivers should provide important insights about the experience of caregivers and how more targeted interventions can be developed to address their specific needs. 相似文献