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71.
The authors examined the relation between children's narrative ability, which has been identified as an important contributor to memory development, and suggestibility. Across 2 studies, a total of 112 preschool-aged children witnessed a staged event and were subsequently questioned suggestively. Results from Study 1 indicated that children's ability to provide a high-quality narrative of the event was related to resistance to suggestive questions, and narrative ability appeared to supersede age as a predictor of such resistance. In Study 2, children's general language and narrative abilities were measured in addition to their ability to produce a high-quality narrative about the target event. These results replicated Study 1's findings that children's ability to produce a high-quality narrative of a previously experienced event predicted resistance to suggestion. However, the quality of children's autobiographical memory narratives predicted shifting from denial to assent. Findings are considered in light of narrative's role in memory development and underlying mechanisms that may explain children's suggestibility. 相似文献
72.
Past research suggests a status-asymmetry effect in attributions to discrimination such that people are more likely to make attributions to discrimination when the victim is from a lower status group than the perpetrator as compared to when the victim is from a higher status group than the perpetrator. The present studies test a stereotype-asymmetry effect, such that people are more likely to make attributions to discrimination when rejection occurs in a domain in which the victim is negatively rather than positively stereotyped. In Study 1 (observers) and Study 2 (victims), participants attributed rejection following a job interview to discrimination more when the victim was negatively stereotyped than when the victim was positively stereotyped. The stereotypicality of the domain was more important than the relative status of the victim and the perpetrator in determining judgments of discrimination. Thus stereotype-asymmetry is a key feature of the discrimination prototype. 相似文献
73.
Susan E. Gathercole Susan J. Pickering Camilla Knight Zoe Stegmann 《Applied cognitive psychology》2004,18(1):1-16
The relationship between working memory skills and performance on national curriculum assessments in English, mathematics and science was explored in groups of children aged 7 and 14 years. At 7 years, children's levels of attainment in both English and mathematics were significantly associated with working memory scores, and in particular with performance on complex span tasks. At 14 years, strong links persisted between the complex working memory test scores and attainments levels in both mathematics and science, although ability in the English assessments showed no strong association with working memory skill. The results suggest that the intellectual operations required in the curriculum areas of mathematics and science are constrained by the general capacity of working memory across the childhood years. However, whereas success in the acquisition in literacy (tapped by the English assessments at the youngest age) was also linked with working memory capacity, achievements in the higher‐level skills of comprehension and analysis of English literature assessed at 14 years were independent of working memory capacity. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
74.
Pancreatic cancer is the fourth most common cancer in both men and women in the United States. It has the lowest survival
rate of all cancers, largely due to the presence of non-specific symptoms, leading to diagnosis at advanced stages. While
the majority of cases of pancreatic cancer are sporadic, up to 10% may be associated with an inherited predisposition. Currently,
there is no standard screening protocol for pancreatic cancer, although this will change in the future as technology improves.
Additionally, there is little information regarding the perceptions and intent to screen for pancreatic cancer among those
with an increased risk due to a hereditary cancer predisposition syndrome, which was the objective of this study. Focus groups
and individual telephone interviews were conducted, with questions focused on knowledge about pancreatic cancer and screening,
perceived motivators, and perceived barriers related to each of the screening techniques currently available. Participants
were recruited from the High Risk Breast Cancer and Pancreatic Cancer Registries at Huntsman Cancer Institute. The findings
of this study indicated that individuals from these high-risk groups have low knowledge levels of pancreatic cancer screening,
despite their desire for this information. Motivation to undergo a particular screening technique is related to whether the
test is recommended by a physician, cost, degree of invasiveness, and comfort level. This information is useful to genetics
professionals who counsel at-risk individuals, physicians who formulate patient care plans, and translational researchers
who are developing pancreatic screening methods. 相似文献
75.
Abstract— If, as we believe, language is a specialization alt the way down to its roots, then perception of its consonantal elements should be immediately phonetic, not as in the conventional view, a secondary translation from percepts of an auditory sort. Supporting observations come from an experiment in which formant transitions that distinguish [da] and [gal were presented as sinusoids and combined with a synthetic syllable made of resonances, thus causing the auditory system to treat these acoustically incoherent parts as different sources Evidence for the source difference was varied by changing the intensity of the sinusoids relative to the remainder of the syllable. Over the greater part of a 60-dB range, listeners accurately identified the consonants, indicating that they had integrated the stimuli according to a coherence that existed only in the phonetic domain. At the lowest intensities, indeed, the consonants were accurately identified, even though the whistles—the normal responses to the sinusoids—were not. There followed then a range over which perception was duplex. Both consonants and whistles were accurately identified At the highest intensities, phonetic integration failed, but accurate perception of the whistles was maintained. That the phonetic percept was present when as auditory counterpart was absent, and vice versa, is evidence that the phonetic percept is independent of its auditory counterpart and not a translation from it, as is the fact that the two percepts followed very different courses in response to the experimental variable. 相似文献
76.
Promotion and prevention choices between stability and change 总被引:10,自引:0,他引:10
Liberman N Idson LC Camacho CJ Higgins ET 《Journal of personality and social psychology》1999,77(6):1135-1145
Two situations involving choice between stability and change were examined: task substitution, which deals with choosing between resuming an interrupted activity and doing a substitute activity, and endowment, which deals with choosing between a possessed object and an alternative object. Regulatory focus theory (E. T. Higgins, 1997, 1998) predicts that a promotion focus will be associated with openness to change, whereas a prevention focus will be associated with a preference for stability. Five studies confirmed this prediction with both situational induction of and chronic personality differences in regulatory focus. In Studies 1 and 2, individuals in a prevention focus were more inclined than individuals in a promotion focus to resume an interrupted task rather than do a substitute task. In Studies 3-5, individuals in a prevention focus, but not individuals in a promotion focus, exhibited a reluctance to exchange currently possessed objects (i.e., endowment) or previously possessed objects. 相似文献
77.
Kuniko Miyawaki James J. Jenkins Winifred Strange Alvin M. Liberman Robert Verbrugge Osamu Fujimura 《Attention, perception & psychophysics》1975,18(5):331-340
To test the effect of linguistic experience on the perception of a cue that is known to be effective in distinguishing between [r] and [l] in English, 21 Japanese and 39 American adults were tested on discrimination of a set of synthetic speech-like stimuli. The 13 “speech” stimuli in this set varied in the initial stationary frequency of the third formant (F3) and its subsequent transition into the vowel over a range sufficient to produce the perception of [r a] and [l a] for American subjects and to produce [r a] (which is not in phonemic contrast to [l a ]) for Japanese subjects. Discrimination tests of a comparable set of stimuli consisting of the isolated F3 components provided a “nonspeech” control. For Americans, the discrimination of the speech stimuli was nearly categorical, i.e., comparison pairs which were identified as different phonemes were discriminated with high accuracy, while pairs which were identified as the same phoneme were discriminated relatively poorly. In comparison, discrimination of speech stimuli by Japanese subjects was only slightly better than chance for all comparison pairs. Performance on nonspeech stimuli, however, was virtually identical for Japanese and American subjects; both groups showed highly accurate discrimination of all comparison pairs. These results suggest that the effect of linguistic experience is specific to perception in the “speech mode.” 相似文献
78.
Manfred M. Fichter Charles J. Wallace Robert Paul Liberman John R. Davis 《Journal of applied behavior analysis》1976,9(4):377-386
Three social-interaction behaviors of a withdrawn, chronic schizophrenic were increased using a discriminated avoidance (“nagging”) procedure. The three behaviors were: (a) voice volume loud enough so that two-thirds of his speech was intelligible at a distance of 3 m; (b) duration of speech of at least 15 sec; (c) placement of hands and elbows on the armrests of the chair in which he was sitting. “Nagging” consisted of verbal prompts to improve performance when the behaviors did not meet their criteria. A combined withdrawal and multiple-baseline design was used to evaluate the effectiveness of the procedure, and the contingency was sequentially applied to each of the three behaviors in each of four different interactions to determine the degree of stimulus and response generalization. Results indicated that the contingency was the effective element in increasing the patient's appropriate performance, and that there was a high degree of stimulus generalization and a moderate degree of response generalization. After the patient's discharge from the hospital, the durability of improvement across time and setting was determined in followup sessions conducted at a day treatment center and at a residential care home. Volume and duration generalized well to the new settings, while arm placement extinguished immediately. 相似文献
79.
Leonard S. Mark Donald Shankweiler Isabelle Y. Liberman Carol A. Fowler 《Memory & cognition》1977,5(6):623-629
The results of a recent study (Liberman, Shankweiler, Liberman, Fowler, & Fischer, 1977) suggest that good beginning readers are more affected than poor readers by the phonetic characteristics of visually presented items in a recall task. The good readers made significantly more recall errors on strings of letters with rhyming letter names than on nonrhyming sequences; in contrast, the poor readers made roughly equal numbers of errors on the rhyming and nonrhyming letter strings. The purpose of the present study was to determine whether the interaction between reading ability and phonetic similarity is solely determined by different rehearsal strategies of the two groups. Accordingly, good and poor readers were tested on rhyming and nonrhyming words using a recognition memory paradigm that minimized the opportunity for rehearsal. Performance of the good readers was more affected by phonetic similarity than that of the poor readers, in agreement with the earlier study. The present findings support the hypothesis that good and poor readers do differ in their ability to access a phonetic representation. 相似文献
80.
Hollis L. Fitch Terry Halwes Donna M. Erickson Alvin M. Liberman 《Attention, perception & psychophysics》1980,27(4):343-350
The first experiment examined the effects of orthogonal variation in two acoustic cues that are both produced by the articulation of a stop consonant. One component of the articulation produces a temporal cue, the other a spectral cue. In a phonetic identification task, these quite different cues were found to engage in a trading relation: One cue could, within limits, substitute for the other. In a second experiment, the perceptual equivalence implied by that trading relation was put to a stricter test. If the cues are truly equivalent in perception, then they should have their effects on the same perceptual dimension. That being so, it should be possible to combine them in such a way that, working at cross purposes in the perceptual domain, they effectively cancel each other. Pairs of patterns so produced should, then, be harder to discriminate than pairs produced by either cue alone, and still harder than those produced when the (same) two cues are combined in the opposite way and so cooperate. That expectation was confirmed. We suggest that the equivalence thus demonstrated comes about because the two cues are processed by a system specialized to take account of their common origin in speech production. So interpreted, the equivalence may be viewed as an instance of distinctively phonetic perception. 相似文献