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Auditory sensory gating in young adolescents with early-onset psychosis: a comparison with attention deficit/hyperactivity disorder.
Neuropsychopharmacology ( IF 7.6 ) Pub Date : 2019-10-24 , DOI: 10.1038/s41386-019-0555-9
Cecilie Koldbæk Lemvigh 1, 2 , Jens Richardt Møllegaard Jepsen 1, 3 , Birgitte Fagerlund 1, 2 , Anne Katrine Pagsberg 3, 4 , Birte Yding Glenthøj 1, 4 , Jacob Rydkjær 1, 3 , Bob Oranje 1, 5
Affiliation  

Numerous studies have demonstrated impaired sensory gating in schizophrenia and this impairment has been proposed as a candidate biomarker for the disorder. The typical age of onset for schizophrenia is early adulthood, however a sizable group of patients present with psychotic symptoms before the age of 18, commonly referred to as early-onset psychosis (EOP). How an earlier onset influences sensory gating is currently unknown. Impaired sensory gating may not be specific to psychosis, but rather a shared disturbance of neurodevelopmental disorders, such as attention deficit/hyperactivity disorder (ADHD). Therefore, the current study investigated P50 suppression in young adolescents (12-17 years old) with either EOP (N = 55) or ADHD (N = 28) and age and gender matched healthy controls (HC) (N = 71). In addition to P50 suppression, N100 and P200 suppression data were also analyzed. No significant group differences in either raw mean P50 amplitude or mean P50 gating ratios were observed between EOP, ADHD, and HC. Additionally, we observed no P50 suppression deficit in those EOP patients diagnosed with schizophrenia (N = 39). Similarly, we observed no differences in N100 or P200 between the three groups. Healthy levels of P50 suppression were found in both patient groups. The results are in line with some previous studies showing healthy levels of P50 suppression in the early phases of schizophrenia. Our findings do not support P50 sensory gating as a valid biomarker for EOP or ADHD.

中文翻译:

患有早发性精神病的青少年的听觉感觉门控:与注意缺陷/多动障碍的比较。

大量研究表明,精神分裂症患者的感觉门控受损,并且已提出将该损伤作为该疾病的候选生物标志物。精神分裂症的典型发作年龄是成年早期,但是有相当一部分患者在18岁之前出现精神病症状,通常称为早期发作性精神病(EOP)。目前尚不清楚较早发作如何影响感觉门控。感觉门控受损可能并非特定于精神病,而是神经发育障碍(例如注意力不足/多动症(ADHD))的共享障碍。因此,本研究调查了EOP(N = 55)或ADHD(N = 28)以及年龄和性别匹配的健康对照(HC)(N = 71)的青少年(12-17岁)的P50抑制作用。除了抑制P50外,还分析了N100和P200的抑制数据。在EOP,ADHD和HC之间,未观察到原始平均P50振幅或平均P50门控比率的显着组差异。此外,我们在诊断为精神分裂症的EOP患者中未观察到P50抑制缺陷(N = 39)。同样,我们观察到三组之间的N100或P200没有差异。在两个患者组中都发现了健康的P50抑制水平。该结果与以前的一些研究结果一致,这些研究表明精神分裂症早期阶段的P50抑制水平处于健康水平。我们的发现不支持P50感觉门控作为EOP或ADHD的有效生物标志物。我们在诊断为精神分裂症的EOP患者中未观察到P50抑制缺陷(N = 39)。同样,我们观察到三组之间的N100或P200没有差异。在两个患者组中都发现了健康的P50抑制水平。该结果与以前的一些研究结果一致,这些研究表明精神分裂症早期阶段的P50抑制水平处于健康水平。我们的发现不支持P50感觉门控作为EOP或ADHD的有效生物标志物。我们在诊断为精神分裂症的EOP患者中未观察到P50抑制缺陷(N = 39)。同样,我们观察到三组之间的N100或P200没有差异。在两个患者组中都发现了健康的P50抑制水平。该结果与以前的一些研究结果一致,这些研究表明精神分裂症早期阶段的P50抑制水平处于健康水平。我们的发现不支持P50感觉门控作为EOP或ADHD的有效生物标志物。
更新日期:2019-10-25
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