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251.
Eileen C. Schwab James R. Sawusch Howard C. Nusbaum 《Attention, perception & psychophysics》1981,29(2):121-128
An experiment was conducted which assessed the relative contributions of three acoustic cues to the distinction between stop consonant and semivowel in syllable initial position. Subjects identified three series of syllables which varied perceptually from [ba] to [wa]. The stimuli differed only in the extent, duration, and rate of the second formant transition. In each series, one of the variables remained constant while the other two changed. Obtained identification ratings were plotted as a function of each variable. The results indicated that second formant transition duration and extent contribute significantly to perception. Short second formant transition extents and durations signal stops, while long second formant transition extents and durations signal semivowels. It was found that second formant transition rate did not contribute significantly to this distinction. Any particular rate could signal either a stop or semivowel. These results are interpreted as arguing against models that incorporate transition rate as a cue to phonetic distinctions. In addition, these results are related to a previous selective adaptation experiment. It is shown that the “phonetic” interpretation of the obtained adaptation results was not justified. 相似文献
252.
Previous demonstrations that performance on visual search tasks with briefly flashed presentations declines over time after the initial onset imply that saccades might be necessary for efficient acquisition of visual information. We imposed an additional abrupt onset and a displacement on character arrays containing letters and one numeral while subjects searched for the numeral. Presentations were always followed by a visual noise field. Presentation time varied (50–800 msec). We found that performance with presentations containing one onset and remaining continuously visible was better than performance with presentations containing two onsets and containing displacements. Furthermore, information acquired near the onset of a continuous presentation was as effective as information acquired later. Our results demonstrate that abrupt onsets and displacements do not improve information acquisition with displays of alphanumeric characters. This finding is consistent with earlier reports that saccade-like retinal image motion does not contribute either to the maintenance of target visibility or to visual acuity. 相似文献
253.
Selection of high vs low valued letters from a briefly presented visual array was investigated. An indicator specifying the value of letters occurred before or after the array. Selection could occur during input to memory or during output from memory in the before condition, but only at output in the after condition. Previous research using an alphabetic instruction, which required letter identification prior to selection, attributed selection to output. A color instruction in the -present experiment, not requiring letter identification, showed the locus of selection to be at input. Experiment 2 replicated these findings and used an interference technique to add further support. In addition, contrary to previous findings, these results indicated that the selection process caused no deficit in overall recall. 相似文献
254.
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256.
Jennifer Harman Ehrentraut Eileen Chaves Xingu Tang Julia Thompson Wendy L. Ward 《Journal of clinical psychology in medical settings》2016,23(3):247-256
Patterns of agreement between parent and child ratings of psychosocial functioning and fatigue in children with obesity were examined. Analyses demonstrated moderate agreement for social anxiety in elementary children and small agreement for social anxiety in adolescents. Results of analyses of overall quality of life revealed small agreement in children under the age of 8, large agreement in children ages 8–12, and moderate agreement in adolescents ages 13–18. Overall ratings of fatigue demonstrated moderate agreement both in elementary children and in adolescents. A meaningful relationship was found between each factor measured by a parent and a child. Patterns which were unexpected given the existing literature were found; possible hypotheses explaining these patterns are presented; and the need for further research is highlighted. 相似文献
257.
Using thematic analysis of interview data, the present study assessed teen girls’ and young adult women’s attitudes toward posting sexualized profile photos on Facebook. In addition, sexualization behaviors depicted in participants’ profile photos were examined. Participants overwhelmingly disapproved (either in a reluctant or a clear manner) of posting a profile photo of oneself in underwear on social media. A somewhat different pattern emerged in attitudes about posting a swimsuit photo in which specific conditions were laid out determining whether swimsuit photos were acceptable or not. Sexualization cues in profile photos were generally low. Findings suggest that posting a sexualized photo on social media comes with relational costs for girls and women. Strategies for educating young people about new media use and sexualization are discussed. 相似文献
258.
Individuals with autism spectrum disorder (ASD) often exhibit noncompliance during medical exams. One intervention used to address this concern is differential reinforcement. Although differential reinforcement includes extinction, it may not be feasible or safe to implement extinction during medical exams. In the current study, we evaluated differential reinforcement without extinction and differential reinforcement without extinction plus stimulus fading, for increasing compliance during routine medical exams exhibited by 4 individuals with ASD. An indirect assessment identified problematic medical procedures, and a functional analysis showed that participants' disruptive behavior was maintained by escape from medical tasks. Differential reinforcement without extinction was insufficient in increasing medical compliance with 3 of 4 participants. The addition of a modified stimulus fading procedure that involved gradually introducing smaller components of problematic exam steps was effective in increasing medical compliance with all exam steps. 相似文献
259.
Aspectual asymmetries in the mental representation of events: Role of lexical and grammatical aspect
Foong Ha Yap Patrick Chun Kau Chu Emily Sze Man Yiu Stella Fay Wong Stella Wing Man Kwan Stephen Matthews Li Hai Tan Ping Li Yasuhiro Shirai 《Memory & cognition》2009,37(5):587-595
Temporal information is important in the construction of situation models, and many languages make use of perfective and imperfective
aspect markers to distinguish between completed situations (e.g., He made a cake) and ongoing situations (e.g., He is making a cake). Previous studies in which the effect of grammatical aspect has been examined have shown that perfective sentences are often
processed more quickly than imperfective ones (e.g., Chan, Yap, Shirai, & Matthews, 2004; Madden & Zwaan, 2003; Yap et al.,
2004; Yap et al., 2006). However, these studies used only accomplishment verbs (i.e., verbs with an inherent endpoint, such
as bake a cake). The present study on the processing of Cantonese includes activity verbs (i.e., durative verbs with no inherent endpoint,
such as play the piano), and the results indicate a strong interaction between lexical aspect (i.e., verb type) and grammatical aspect. That is,
perfective sentences were processed more quickly with accomplishment verbs, consistent with previous findings, but imperfective
sentences were processed more quickly with activity verbs. We suggest that these different aspectual asymmetries emerge as
a result of the inherent associations between accomplishment verbs and the bounded features of perfective aspect and between
activity verbs and the unbounded features of imperfective aspect. The sentence stimuli from this study may be downloaded from
mc.psychonomic-journals.org/content/supplemental. 相似文献
260.
Pattie Luk-Fong Yuk Yee 《Counselling psychology quarterly》2005,18(3):193-206
Unlike many other places in the world, guidance lessons in Hong Kong are taught mainly by class teachers rather than school counsellors. Given the unique educational context of Hong Kong as East meets West and given that guidance is essentially a concept from the West, it is important to investigate what kind of pedagogy is suitable for teaching guidance in Hong Kong. This paper examines what teaching guidance lessons are like in Hong Kong for the researcher and for some primary teachers. A qualitative case study methodology is used. Data are drawn from the author's own experience in a primary school teaching attachment and interviews with guidance professionals, primary school principals, teachers and students in three selected primary schools in Hong Kong. Pedagogical issues for the teaching guidance curriculum are explored and discussed. The researcher argues for a hybrid guidance pedagogy for the teaching of classroom guidance in Hong Kong. Findings are applicable to countries facing similar issues in parallel mixed cultural settings. 相似文献