P50 suppression in children with selective mutism: a preliminary report.
نویسندگان
چکیده
Evidence suggests that children with selective mutism (SM) display significant aberrations in auditory efferent activity at the brainstem level that may underlie inefficient auditory processing during vocalization, and lead to speech avoidance. The objective of the present study was to explore auditory filtering processes at the cortical level in children with SM. The classic paired-click paradigm was utilized to assess suppression of the P50 event-related potential to the second, of two sequentially-presented clicks, in ten children with SM and 10 control children. A significant suppression of P50 to the second click was evident in the SM group, whereas no suppression effect was observed in controls. Suppression was evident in 90% of the SM group and in 40% of controls, whereas augmentation was found in 10% and 60%, respectively, yielding a significant association between group and suppression of P50. P50 to the first click was comparable in children with SM and controls. The adult-like, mature P50 suppression effect exhibited by children with SM may reflect a cortical mechanism of compensatory inhibition of irrelevant repetitive information that was not properly suppressed at lower levels of their auditory system. The current data extends our previous findings suggesting that differential auditory processing may be involved in speech selectivity in SM.
منابع مشابه
Integrated Behavior Therapy for Selective Mutism: a randomized controlled pilot study.
OBJECTIVE To evaluate the feasibility, acceptability, and preliminary efficacy of a novel behavioral intervention for reducing symptoms of selective mutism and increasing functional speech. METHOD A total of 21 children ages 4 to 8 with primary selective mutism were randomized to 24 weeks of Integrated Behavior Therapy for Selective Mutism (IBTSM) or a 12-week Waitlist control. Clinical outco...
متن کاملSelective Mutism Group~Childhood Anxiety Network Speaking Out for Our Children Top Ten Myths About Selective Mutism
Although it was first described 125 years ago (and labeled aphasis voluntaria at that time by a German doctor, Kussmaul), relatively little has been studied or written about the childhood anxiety disorder now known as selective mutism. In reading through the sparse body of literature in textbooks and journals, it is not difficult to see why so many selectively mute children are being misdiagnos...
متن کاملCase Report: Evaluation strategies and cognitive intervention: the case of a monovular twin child affected by selective mutism
The present work describes the assessment process, evaluation strategies, and cognitive intervention on a 9 years old child with selective mutism (SM), a monovular twin of a child also affected by mutism. Currently, the cognitive behavioral multimodal treatment seems the most effective therapeutic approach for children diagnosed with selective mutism (Capobianco & Cerniglia, 2018). The illustra...
متن کاملGroup therapy for selective mutism - a parents' and children's treatment group.
OBJECTIVE To evaluate the feasibility and effectiveness of group therapy for children with selective mutism and their parents. METHOD Five children (mean age 6.1 years) with a diagnosis of selective mutism were administered group therapy over an 8-week period. Parents simultaneously attended a second group, aimed at providing education and advice on managing selective mutism in everyday situa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of abnormal child psychology
دوره 38 1 شماره
صفحات -
تاریخ انتشار 2010