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排序方式: 共有263条查询结果,搜索用时 15 毫秒
151.
The objective of this study was to examine response inhibition- and feedback-related neural activity in adults with attention deficit hyperactivity disorder (ADHD) using event-related functional MRI. Sixteen male adults with ADHD and 13 healthy/normal controls participated in this study and performed a modified Go/NoGo task. Behaviourally, attention and inhibition problems in the ADHD group were observed; no feedback-related differences between the groups were detected. The neuroimaging data showed that the ADHD group displayed more activation in the inferior frontal gyrus and putamen during response inhibition. During feedback-related processes, the ADHD group displayed less activation in the inferior frontal/orbitofrontal cortex, hippocampus/nucleus accumbens, and caudate nucleus, but more activity in the inferior frontal gyrus. These results indicate that at least two distinguishable underlying brain networks related to response inhibition and feedback are altered in adults with ADHD. 相似文献
152.
发展性阅读障碍语音缺陷的脑科学研究及对阅读教学的启示 总被引:2,自引:0,他引:2
阅读障碍语音缺陷是阅读障碍的关键原因之一。脑科学研究发现,拼音文字系统中阅读障碍者在语音加工的神经机制上存在缺陷,相关脑区包括颞—顶—枕联合区和额下回;而汉语阅读障碍者语音加工时,激活的脑区和拼音文字系统阅读障碍者激活的脑区不同,涉及左额中回和右脑一些皮层。基于此,提出了相应的阅读教学建议。 相似文献
153.
Marni E. Axelrad Beth H. Garland Kelly Brey Love 《Journal of clinical psychology in medical settings》2009,16(3):263-269
Parent reported behavioral difficulties in young children are relatively common. Without adequate intervention, some children
will later present with more severe problem behaviors. Parent management training is one of the best methods of treatment
for behavior problems; however, existing treatments can be lengthy and difficult to conduct outside of a research setting.
The Brief Behavioral Intervention was designed as a briefer version of a manualized parent management training treatment package.
Thirty-one parents of children aged 2–6.5 presenting with behavior problems were included in this initial study of treatment
effectiveness. Based on parent and teacher report, treatment was effective in a mean of 7.2 sessions. 相似文献
154.
Lahey BB Van Hulle CA Rathouz PJ Rodgers JL D'Onofrio BM Waldman ID 《Journal of abnormal child psychology》2009,37(1):45-58
Inattentive–hyperactive and oppositional behavior have been hypothesized to be developmental precursors to conduct problems.
We tested these hypotheses using a longitudinal sample of 6,466 offspring of women selected from nationally representative
US households. Conduct problems across 8–13 years were robustly predicted by conduct problems at 4–7 years, but also were
independently predicted to a small extent by both inattentive–hyperactive and oppositional behaviors at 4–7 years. Longitudinal
multivariate behavior genetic analyses revealed that the genetic and environmental factors that influence conduct problems
at both 4–7 and 8–13 years also influence the putative precursors at 4–7 years. After genetic and environmental influences
on conduct problems at 4–7 years were taken into account, however, inattentive–hyperactive and oppositional behavior at 4–7 years
shared causal influences with conduct problems 8–13 years to a negligible extent. These findings suggest that after early
conduct problems are controlled, little is gained in terms of prediction or understanding genetic and environmental influences
on later child conduct problems by treating early inattentive–hyperactive and oppositional behavior as developmental precursors
to later conduct problems. 相似文献
155.
Infants rapidly accrue information via imitation from multiple sources, including television and electronic toys. In two experiments, we examined whether adding sound effects to video or live demonstrations would influence imitation by 6-, 12-, and 18-month-olds. In Experiment 1, we added matching and mismatching sound effects to target actions presented by a televised model. We found that 6-month-olds reproduced the target actions regardless of whether the sound effects were matched or mismatched, whereas 12- and 18-month-olds reproduced the actions only when the sound effects were matched. In Experiment 2, we added matching sound effects to target actions presented by a live model. The addition of sound effects disrupted imitation performance by 6-, 12-, and 18-month-olds. Overall, imitation provides a clear behavioral measure of rapid changes in learning from television and electronic toys during infancy. These findings have practical implications for producers and parents regarding learning in the digital age and theoretical implications regarding the development of integrated action-perception representational systems. 相似文献
156.
F. Charles Mace Kevin L. Prager Karen Thomas Jane Kochy Tim J. Dyer Lora Perry Duncan Pritchard 《Journal of applied behavior analysis》2009,42(1):177-183
We evaluated the evocative effects of four conditions (high‐ and low‐preference activities, low and divided attention) and stimulant medication on the behavior of a 16‐year‐old boy with attention deficit hyperactivity disorder and moderate mental retardation. All behavior (activity engagement, activity changes, inappropriate touching, rude behaviors, and physical aggression) improved with stimulant medication in most conditions, but undesirable behaviors were not reduced to acceptable levels in all conditions. This finding suggests that stimulant medication may be a valuable adjunct to function‐based interventions. 相似文献
157.
158.
Amélie Dentz Marie-Claude Guay Bruno Gauthier Lucia Romo Véronique Parent 《Applied cognitive psychology》2020,34(3):577-589
The primary objective of this study was to examine the effects of the Cogmed training program on working memory among youths 7 to 13 years old, with attention deficit/hyperactivity disorder (ADHD) type and comorbidity controlled for. A secondary objective was to examine the generalization of effects to ADHD symptoms, nonverbal reasoning, attentional and executive functions, inhibition, reading comprehension, and mathematical reasoning. Participants were under pharmacological treatment for ADHD combined type and a comorbidity. They were randomized into an experimental group that received the Cogmed program and an active control group that received a low-intensity comparison version of the training. They were evaluated at three time points: 6 weeks prior to intervention onset (T1), immediately prior to onset (T2), and 1 week following intervention completion (T3). Results indicate no significant effect attributable to the Cogmed program. The fact that participants were on medication at the time of training and evaluation normalized their performances and limited the detection of effects. Moreover, cognitive training did not lead to a reduction in ADHD symptoms or to an improvement in the other cognitive functions measured or in academic performance. The results of this study do not demonstrate the effectiveness of the Cogmed program for youths with ADHD combined type and a comorbidity when they receive the training while under pharmacological treatment. 相似文献
159.
The ability to transfer learning across contexts is an adaptive skill that develops rapidly during early childhood. Learning from television is a specific instance of transfer of learning between a two-dimensional (2D) representation and a three-dimensional (3D) object. Understanding the conditions under which young children might accomplish this particular kind of transfer is important because by 2 years of age 90% of US children are viewing television on a daily basis. Recent research shows that children can imitate actions presented on television using the corresponding real-world objects, but this same research also shows that children learn less from television than they do from live demonstrations until they are at least 3 years old; termed the video deficit effect. At present, there is no coherent theory to account for the video deficit effect; how learning is disrupted by this change in context is poorly understood. The aims of the present review are: (1) to review the conditions under which children transfer learning between 2D images and 3D objects during early childhood and (2) to integrate developmental theories of memory processing into the transfer of learning from media literature using Hayne’s (2004) developmental representational flexibility account. The review will conclude that studies on the transfer of learning between 2D and 3D sources have important theoretical implications for general developmental theories of cognitive development, and in particular the development of a flexible representational system, as well as policy implications for early education regarding the potential use and limitations of media as effective teaching tools during early childhood. 相似文献
160.
Juan Antonio Amador-Campos Maria Forns-Santacana Joan Guàrdia-Olmos Maribel Peró-Cebollero 《Journal of psychopathology and behavioral assessment》2006,28(1):23-32
The agreement between teachers’ and parents’ ratings of the prevalence of DSM-IV attention deficit hyperactivity disorder (ADHD) symptoms and the concordance of the factor structure of ADHD symptoms was analyzed in a sample of 653 Spanish schoolchildren aged 4 to 12 divided into two age groups. The prevalence of ADHD symptoms ranged between 0.66 and 16.73% and was higher when the rater was the teacher. Agreement between parents and teachers was low. Confirmatory factor analysis (CFA) shows a slightly better fit for the three-factor model (Inattention, Hyperactivity and Impulsivity) than for the two-factor model (Inattention and Hyperactivity–impulsivity), except for parents’ ratings in the sample of children under six. CFA using a multitrait–multimethod model (CFA-MTMM) shows similar results. 相似文献