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161.
There is little question that parent–child joint reading is related to a number of positive childhood outcomes, such as vocabulary acquisition and school success. With the growth of tablet computers, parents are now able to read to their children using different platforms. This study used a repeated-measures design with parents and their preschool-aged children to test the difference between reading interactions and child comprehension on two platforms: traditional books and electronic iPad books. Results indicated that in the electronic reading condition, parents used more talk about the book format and environment than in the traditional book condition, where they used more evaluative comments about content. Children comprehended significantly more in the traditional book condition than in the electronic book condition. Additional analyses suggested that this finding was related to the increase in distraction talk by parents in the electronic book condition. Results suggest that it is important to consider the specific content of parent–child reading interactions and the increased cognitive load these interactions can place on children, as parent questions about the book format and the environment were related to decreases in child comprehension. 相似文献
162.
Three rhesus monkeys (Macaca mulatta) performed a simultaneous chaining task in which stimuli had to be sorted according to their visual properties. Each stimulus could vary independently along two dimensions (luminosity and radius), and a cue indicating which dimension to sort by was random trial to trial. These rapid and unpredictable changes constitute a task-switching paradigm, in which subjects must encode task demands and shift to whichever task-set is presently activated. In contrast to the widely reported task-switching delay observed in human studies, our subjects show no appreciable reduction in reaction times following a switch in the task requirements. Also, in contrast to the results of studies on human subjects, monkeys experienced enduring interference from trial-irrelevant stimulus features, even after exhaustive training. These results are consistent with a small but growing body of evidence that task-switching in rhesus macaques differs in basic ways from the pattern of behavior reported in studies of human cognition. Given the importance of task-switching paradigms in cognitive and clinical assessment, and the frequency with which corresponding animal models rely on non-human primates, understanding these differences in behavior is essential to the comparative study of cognitive impairment. 相似文献
163.
In hybrid search, observers memorize a number of possible targets and then search for any of these in visual arrays of items. Wolfe (2012) has previously shown that the response times in hybrid search increase with the log of the memory set size. What enables this logarithmic search of memory? One possibility is a series of steps in which subsets of the memory set are compared to all items in the visual set simultaneously. In the present experiments, we presented single visual items sequentially in a rapid serial visual presentation (RSVP) display, eliminating the possibility of simultaneous testing of all items. We used a staircasing procedure to estimate the time necessary to effectively detect the target in the RSVP stream. Processing time increased in a log–linear fashion with the number of potential targets. This finding eliminates the class of models that require simultaneous comparison of some memory items to all (or many) items in the visual display. Experiment 3 showed that, similar to visual search, memory search efficiency in this paradigm is influenced by the similarity between the target set and the distractors. These results indicate that observers perform separate memory searches on each eligible item in the visual display. Moreover, it appears that memory search for one item can proceed while other items are being categorized as “eligible” or “not eligible.” 相似文献
164.
ABSTRACTThe own race bias (ORB) refers to a finding that faces of members of one's own racial or ethnic group are easier to recognize. Holistic processing theories suggest that the ORB might be moderated by viewing distance. Participants studied photographs of own and other race individuals and then took a recognition memory test. Viewing distance was simulated by varying the degree to which photographs were blurred (Experiment 1) and by varying photograph size (Experiment 2). Findings indicated that own race faces were better recognized, that recognition was impaired by simulated viewing distance, but the size of the ORB was not contingent upon distance. 相似文献
165.
Successful Females: Print Media Profiles and Their Implications 总被引:1,自引:0,他引:1
Gilah C. Leder 《The Journal of psychology》2013,147(3):239-248
The media are widely recognized as a powerful determinant of attitudes. They help shape the social environment in which personal and professional development take place. This paper is concerned with the way outstanding women are portrayed by the Australian print media and examines whether such portrayals reflect a government-sponsored debate to gain wider community support for its proposals to outlaw discriminatory practices against women. Of interest are the range of achievements singled out, the manner in which successful females are depicted, and whether any changes in these aspects have occurred over a two-year period. The findings are discussed within the general framework of the expectancy value theory of achievement motivation, with specific reference to the fear of success construct. 相似文献
166.
Sylvia?LohEmail author Nicole?Lamond Jill?Dorrian Gregory?Roach Drew?Dawson 《Behavior research methods》2004,36(2):339-346
The 10-min psychomotor vigilance task (PVT) has often been used to assess the impact of sleep loss on performance. Due to
time constraints, however, regular testing may not be practical in field studies. The aim of the present study was to examine
the suitability of tests shorter than 10 min. in duration. Changes in performance across a night of sustained wakefulness
were compared during a standard 10-min PVT, the first 5 min of the PVT, and the first 2 min of the PVT. Four performance metrics
were assessed: (1) mean reaction time (RT), (2) fastest 10% of RT, (3) lapse percentage, and (4) slowest 10% of RT. Performance
during the 10-min PVT significantly deteriorated with increasing wakefulness for all metrics. Performance during the first
5 min and the first 2 min of the PVT deteriorated in a manner similar to that observed for the whole 10-min task, with all
metrics except lapse percentage displaying significant impairment across the night. However, the shorter the task sampling
time, the less sensitive the test is to sleepiness. Nevertheless, the 5-min PVT may provide a viable alternative to the 10-min
PVT for some performance metrics. 相似文献
167.
This demonstration uses one of the most famous human faces, the portrait of Mona Lisa, La Gioconda, by Leonardo da Vinci. Usually, we have a very accurate and stable representation of the exact configuration of such a familiar face. Typically, we are able to rapidly recognise even subtle configural changes. However, here we show that an exposure to specific alterations performed on a familiar face substantially reduces this ability even over a time period as long as 80 min. This demonstration illustrates the flexibility of the perceptual system and adaptation to new information. 相似文献
168.
The aim of this study was to ascertain whether the structure of personality disorder (PD) symptoms in adolescents assessed using DSM-IV diagnoses and diagnostic criteria resembles the structure intended for the diagnosis of PDs in adults. A national sample of clinicians rated DSM-IV Axis II criteria on 294 adolescent patients in treatment for enduring maladaptive personality patterns. Cluster analysis replicating procedures used in an adult sample by Morey (1988) identified considerable similarity between adult and adolescent PDs, as did exploratory factor analysis of ratings of diagnostic criteria, which yielded ten empirically derived factors that resembled the ten DSM-IV PDs. Cluster analysis and confirmatory factor analysis with indicators of Axis II symptoms produced mixed results in replicating the DSM-IV hierarchical structure of PDs (Clusters A, B, and C), although hierarchical models generally fared better than models specifying only first-order factors or clusters. The structure of personality pathology as assessed by Axis II criteria in adolescents resembles that outlined in DSM-IV Axis II for adults, suggesting that PDs can be assessed in adolescents as in adults. Whether this is an optimal way of diagnosing personality pathology in adolescence, however, requires further investigation. 相似文献
169.
Toward an Integrative Model of Affect Regulation: Applications to Social-Psychological Research 总被引:1,自引:0,他引:1
Drew Westen 《Journal of personality》1994,62(4):641-667
ABSTRACT This article describes a model of affect regulation that integrates research and theory from psychoanalytic, cognitive, behavioral, and evolutionary perspectives on personality. It proposes that feelings are mechanisms for the selection and retention of behavioral and mental responses. Individuals select behaviors, coping strategies, and defensive strategies that regulate aversive affective states and maximize pleasurable ones. These affect regulation procedures are encoded as procedural knowledge and are activated under specific circumstances. Some regulation strategies are affect-specific, whereas others can be used to regulate multiple affects of similar valence. These procedures are often activated to resolve discrepancies between perceived and desired states of the self, significant others, and external circumstances. The utility of the model is demonstrated through a reinterpretation and integration of a number of disparate traditions in social psychology, including many of the classic experiments on social influence, in which the processing of emotionally relevant social information plays a substantial part. 相似文献
170.
Epstein JN Conners CK Erhardt D Arnold LE Hechtman L Hinshaw SP Hoza B Newcorn JH Swanson JM Vitiello B 《Journal of abnormal child psychology》2000,28(6):585-594
Patterns of familial aggregation of ADHD symptoms in parents of ADHD and non-ADHD children were examined. Within the ADHD sample, symptom aggregation was examined as a function of biological relationship, parent and child gender, and children's comorbid diagnoses. Participants consisted of parents of 579 children with ADHD, Combined Type participating in the multimodal treatment study of children with ADHD and parents of 288 normal control participants. Adult symptoms of ADHD were measured by both self-report and report of a significant other. Results indicated that the parents of children with ADHD had higher ratings of inattention/cognitive problems, hyperactivity/restlessness, impulsivity/emotional lability, and lower self-concept than parents of children without ADHD on both self-report and other-report ratings. Within the ADHD sample of children, other-report ratings of inattention/cognitive problems and impulsivity/emotional lability were higher for biological parents compared to nonbiological parents whereas self-ratings were not related to biological status. These findings support previous research documenting familial aggregation of ADHD and appear to strengthen the hypothesis that there is a genetic contribution to ADHD. 相似文献