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201.
202.
Catherine M. Udy Carol Newall Suzanne Broeren Jennifer L. Hudson 《Journal of abnormal child psychology》2014,42(3):439-451
Parents of anxious children are thought to be more attuned to threat, which might translate into less positive bias in parental report of child coping and ability, unlike parents of non-anxious children. Maternal expectancy bias was examined in a sample of 43 clinically anxious (51 % female), 30 clinically anxious/depressed (50 % female), and 44 non-clinical control children (46 % female), 8–14 years of age. When compared to an objective observer’s ratings of the children, mothers of non-clinical children demonstrated a positive bias (i.e., over-rated their children’s performance) for both ratings of expected speech performance in absolute terms and relative to peers. Mothers in the clinical groups did not exhibit this positive expectancy bias. Moreover, mothers of clinical children reported lower expectations in absolute terms and relative to peers than mothers of non-clinical children. The data suggest that mothers of clinical children held accurate expectations for child performance when compared to the gold standard of an objective observer. 相似文献
203.
Martijn J. Mulder Max C. Keuken Leendert van Maanen Wouter Boekel Birte U. Forstmann Eric-Jan Wagenmakers 《Attention, perception & psychophysics》2013,75(5):1048-1058
Research in perceptual decision making is dominated by paradigms that tap the visual system, such as the random-dot motion (RDM) paradigm. In this study, we investigated whether the behavioral signature of perceptual decisions in the auditory domain is similar to those observed in the visual domain. We developed an auditory version of the RDM task, in which tones correspond to dots and pitch corresponds to motion (the random-tone pitch task, RTP). In this task, participants have to decide quickly whether the pitch of a “sound cloud” of tones is moving up or down. Stimulus strength and speed–accuracy trade-off were manipulated. To describe the relationship between stimulus strength and performance, we fitted the proportional-rate diffusion model to the data. The results showed a close coupling between stimulus strength and the speed and accuracy of perceptual decisions in both tasks. Additionally, we fitted the full drift diffusion model (DDM) to the data and showed that three of the four participants had similar speed–accuracy trade-offs in both tasks. However, for the RTP task, drift rates were larger and nondecision times slower, suggesting that some DDM parameters might be dependent on stimulus modality (drift rate and nondecision time), whereas others might not be (decision bound). The results illustrate that the RTP task is suitable for investigating the dynamics of auditory perceptual choices. Future studies using the task might help to investigate modality-specific effects on decision making at both the behavioral and neuronal levels. 相似文献
204.
This study compared life story memories of emerging adults and early adolescents to other autobiographical memories. Participants described three scenes of their respective life stories, a high point, low point, and turning point narrative, and described the connections between them in a fourth narrative. Participants also related four autobiographical narratives from corresponding time periods for comparison. Narratives were analysed for two measures of causal coherence, narrative complexity and meaning making, and for thematic coherence. Life story narratives contained more self-related lessons and insights and greater recognition of complexity than non-life-story narratives, but these differences were confined to narratives of turning points and connections between events. Thematic connections between narratives were more abstract and self-related in life story narratives. Emerging adults' narratives, when compared to those of early adolescents, showed more evidence of self-related abstract thinking and recognition of multiple dimensions. Findings indicate consistent ways in which life story memories differ from other autobiographic memories, and show evidence of development in adolescence. 相似文献
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206.
Hudson Hoagland 《The Journal of general psychology》2013,140(2):267-287
Six prairie dogs (Cynomys ludovicianus) were given reversal training on a spatial discrimination reversal task in a Wisconsin General Test Apparatus (WGTA). As with many other species, more errors occurred on the first reversal problem than during acquisition of the original discrimination. However, performance improved over training until each S eventually reversed after a single nonreinforced error. Initial findings indicate that prairie dogs perform at high levels in discrimination learning experiments and could be valuable subjects for psychological research. 相似文献
207.
Typically, tasks used in past contextual interference experiments had movement, spatial pattern, or timing requirements. The possibility exists that the blocked/random manipulation of only one of these task characteristics contributes to the contextual interference effect. The purpose of the experiment reported here was to test the impact of separate movement and timing tasks on the superior learning of random trained groups. The task for all subjects in the movement condition was to release a start button and knock over a wooden barrier. There were three movement time goals to be learned. Half of the subjects in this condition practiced the three movements in a blocked schedule and half practiced them in a random schedule. The subjects in the no-movement condition estimated the same three times by holding down the start button for the appropriate duration. Similarly, these subjects were divided into random and blocked practice groups. All subjects then performed a retention test. Results showed that for the movement condition, the blocked group performed with less error than the random group during acquisition. In retention, however, the random group performed with less error than the blocked group. Conversely, for the no-movement condition, there were no differences between the two practice schedule groups during acquisition or during retention for any of the dependent measures. These results indicate that experimental tasks must have some type of movement requirement in order to facilitate learning through the use of random practice schedules. 相似文献
208.
Gutteling BM de Weerth C Zandbelt N Mulder EJ Visser GH Buitelaar JK 《Journal of abnormal child psychology》2006,34(6):789-798
Prenatal maternal stress has been shown to affect postnatal development in animals and humans. In animals, the morphology and function of the offspring's hippocampus is negatively affected by prenatal maternal stress. The present study prospectively investigated the influence of prenatal maternal stress on learning and memory of 112 children (50 boys, 62 girls, Age: M=6.7 years, SD=8.4 months), with the Test of Memory and Learning (TOMAL). Maternal stress levels were determined three times during pregnancy by self-report questionnaires. Furthermore, maternal saliva cortisol samples were used as a measure of hypothalamus-pituitary-adrenal axis functioning. Results of hierarchical multivariate regression analyses showed that maternal life events measured during the first part of pregnancy were negatively associated with the child's attention/concentration index, while controlling for overall IQ, gender, and postnatal stress. No associations were found between prenatal maternal cortisol and the offspring's learning and memory. 相似文献
209.
210.
Before World War II, Czechoslovakia went through its constituting process, including the development of an educational system. We made an analysis of Czechoslovak discussions about educational uses of intelligence tests from a discourse-theoretic and social constructionist perspective. In particular, we examined which connotations became associated with the concept "intelligence" in educational scientific publications about possible educational uses of the newly introduced tests in the years 1900-1939. Results substantiate the inextricable entwining of the meaning of "intelligence" with the unique characteristics of the historical situation in Czechoslovakia before World War II. 相似文献