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161.
Janis Hakola Crowther Lynne A. Bond Jon E. Rolf 《Journal of abnormal child psychology》1981,9(1):23-42
This study examined the incidence, prevalence, and severity of 14 empirically derived externalizing (unsocialized aggressive) and internalizing (socially withdrawn) behaviors among 2- through 5-year-olds attending day care. Teacher ratings were obtained for 558 children in the incidence sample and 709 children in the expanded prevalence sample. Within each age, data were cross-tabulated by sex of child and severity of behavior, and chi-square analyses were computed. Results indicated that a substantial proportion of children in the normal preschool population exhibit relatively high severities of selected externalizing and internalizing behaviors; this proportion varied with the age of the child and the behavior rated. Preschool-aged boys were consistently rated as demonstrating greater frequencies of externalizing behaviors than preschool-aged girls. The diagnostic and clinical implications of these findings are discussed. 相似文献
162.
Previous work has demonstrated that infants’ thresholds for a pure tone are elevated by a masker more than would be predicted from their critical bandwidths. The present studies explored the nature of this additional masking. In Experiment 1, detection thresholds of 6-month-old infants and of adults for a 1-kHz tone were estimated under three conditions: in quiet, in the presence of a 4- to 10-kHz bandpa] noise at 40 dB SPL, and in the presence of the same noise at 50 dB SPL. The noise was gated on at the beginning of each trial. Adult thresholds were the same in all three conditions, indicating that little or no sensory masking took place in the presence of the noise. Infant thresholds were about 10 dB higher in the presence of the noise. We term this effectdistraction masking. In Experiment 2, the effect of gating the noise on at trial onset was examined. Thresholds for the same tone were estimated in quiet and in the presence of the bandpass noise at 40 dB SPL, but the noise was presented continuously during the session. Under these conditions, distraction masking was still observed for infants. These findings suggest that a masker can have nonsensory effects on infants’ performance in a psychoacoustic task. 相似文献
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Herbert L. Pick Jr. David H. Warren Curtis McIntyre Lynne Appel 《Psychological research》1972,35(3):163-177
Summary Three experiments are reported involving transfer of effects of different types of visual distortion: lateral displacement, linear extent, and visual rotation. Transfer between different body parts and between different dimensions of space occur but to varying degrees. These are interpreted in terms of their implications for understanding the organization of perceptual and perceptual-motor space.This research was supported by the Center for Research in Human Learning of the University of Minnesota, and by grants 1-K3-HD 12,396, HD 03082 to the University of Minnesota. The authors are indebted to Dr. Albert Yonas for helpful discussions of the results. 相似文献
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This study investigates the potential interactions among some of the key variables in Valins's (1966) false autonomic feedback paradigm. Subjects were shown mildly pleasant or mildly unpleasant slides of animals while they either paid attention to or ignored a continuous-tone soundtrack that increased in pitch in conjunction with half of the pictures. This soundtrack was described either as feedback of skin conductance level or as a neutral auditory stimulus. Slides associated with increased pitch were generally rated as more affectively potent (in either the positive or negative direction, depending on their initial affective valence). For pleasant slides, this effect was contingent on attention to the soundtrack, such that subjectsignoring the sounds showed a stronger differential rating effect regardless of the meaning ascribed to the sound. For both pleasant and unpleasant slide conditions, the only subject groups showing significant rating effects were those ignoring neutrally described sound. It is argued that this pattern of results poses severe problems for a conventional attributional analysis of the Valins effect.This article is based on research funded by the Economic and Social Research Council (UK) under its Postdoctoral Research Fellowship Scheme. Its contents are the responsibility of the authors and do not necessarily reflect the views of the Economic and Social Research Council.We are grateful to Andrew Gregory for producing the computer program used in generating the soundtrack, and to Tony Manstead for his useful advice about an earlier version of this article. 相似文献
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Sixty-six mothers and their 4-year-old children recorded conversations about the children's experiences during a typical preschool day. Each dyad's ethnic background was either Hispanic or Anglo, with similar numbers of mother—daughter and mother—son pairs represented in each ethnic group. Both low- and middle-income dyads participated. The mother—child conversations were analyzed in order to identify the dyads' tendencies to elaborate on discussions of aspects of the school day related to learning, other individuals, and behavioral conduct as a function of the ethnicity of the dyad and the gender of the child. Gender of child was associated with dyads' propensities to devote differing percentages of their total conversational utterances to the discussion of other individuals and behavioral conduct, and interacted with ethnicity to produce different patterns of discussion related to the topic of learning. Mothers of boys used more elaborative utterances in their discussion of learning-related topics than did mothers of girls. Possible implications of these results for children's subsequent school-related attitudes and performance are discussed. 相似文献
170.
Maureen O. Vandermaas Thomas M. Hess Lynne Baker-Ward 《Applied cognitive psychology》1993,7(2):109-127
The study was conducted to explore the effects of anxiety on children's memory for a naturalistic, potentially stressful event. Eighty children of two age groups, 4-5 and 7-8 years, visited the dentist for either a teeth-cleaning check-up or an operative procedure. Anxiety was assessed by a behavioural rating scale, as well as through Likert-scale ratings by the hygienist, parent, and child. Memory for the event was elicited through free recall and specific central and peripheral questions. High anxiety had a debilitative effect on the reports of the older children, but not on young children's reports. However, experience with the dental event mediated the influence of age and anxiety on memory. Although all measures of anxiety were significantly associated with each other, only the behavioural rating scale yielded statistically reliable effects of anxiety on memory. The anxiety-memory relationship is believed to be more complex than previous research with children suggests. 相似文献