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Modeling ADHD-type arousal with unilateral frontal cortex damage in rats and beneficial effects of play therapy

机译:大鼠单侧额叶皮质损伤引起的多动症型唤醒模型及游戏疗法的有益效果

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摘要

It has been recently shown that human adolescents with Attention Deficit/Hyperactivity Disorder (ADHD) have frontal lobe deficits, especially on the right sides of their brains (Castellanos et al., 1996). ADHD is commonly treated with psychostimulants which may have adverse consequences. Hence, less invasive therapies need to be developed. In the present work, we tested the ability of right frontal lesions to induce hyperactivity in rats. We also evaluated the effects of chronic play therapy during early adolescence to reduce both hyperactivity and the elevated playfulness later in development. Play therapy was able to reduce both hyperactivity and excessive playfulness. In additional work, we found that access to rough-and-tumble play in normal animals could enhance subsequent behavioral indices of behavioral inhibition (i.e., freezing in response to a startle stimulus) that appeared to be independent of increased fearfulness and fatigue. Overall, these results suggest that (1) neonatal frontal lobe lesions can be used as an animal model of the overactivity in ADHD and (2) rough-and-tumble play therapy may be a new useful treatment for ADHD.
机译:最近显示,患有注意力缺陷/多动症(ADHD)的青少年有额叶缺陷,尤其是在他们的大脑右侧(Castellanos等,1996)。通常用精神兴奋药治疗多动症,这可能会产生不良后果。因此,需要开发侵入性较小的疗法。在目前的工作中,我们测试了右额额叶皮损诱导大鼠过度活跃的能力。我们还评估了青春期早期慢性游戏疗法的作用,以减少过度活跃和后期开发中增加的嬉戏。游戏疗法能够减少过度活跃和过度嬉戏。在其他工作中,我们发现在正常动物中玩弄粗暴的行为可以增强随后的行为抑制行为指标(即响应惊吓刺激而冻结),而这些行为指标似乎与恐惧和疲劳的增加无关。总体而言,这些结果表明:(1)新生儿额叶病变可用作ADHD过度活跃的动物模型;(2)粗打法治疗可能是ADHD的一种新的有用治疗方法。

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