Neurophysiological measures of sensory registration, stimulus discrimination, and selection in schizophrenia patients.

Neurophysiological measures of sensory registration, stimulus discrimination, and selection in schizophrenia patients.
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精神分裂症患者的感觉登记、刺激辨别和选择的神经生理学测量。

DOI:
10.1007/7854_2010_59
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发表时间:
2010
影响因子:
--
通讯作者:
Light,GregoryA
Light,GregoryA
中科院分区:
--
文献类型:
--
作者:
Rissling,AnthonyJ;Light,GregoryA

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皮层神经生理事件相关电位(ERPs)是信息处理的多维测量,非常适合于有效地解析跨越精神分裂症患者表现出的缺陷范围的认知的自动和受控成分。刺激后的成分反映了由刺激触发的神经过程的序列,从早期的自动感觉过程开始,通过受控的决策和反应相关过程进行。以前使用事件相关电位范式的研究已经报道了精神分裂症患者通过注意力依赖的过程进行信息处理的缺陷,这些过程包括感觉注册(N1)、自动变化检测(MMN)、将注意力定向或隐蔽地转移到新的或不频繁的刺激(P3a),以及成功的目标检测过程后的注意分配(P3b)。在精神分裂症和相关神经精神障碍的新治疗开发背景下,这些自动和注意力依赖的信息成分开始被认为是干预的有效目标。在这篇综述中,我们描述了三个被广泛研究的事件相关电位成分(N1,失配负性,P300),它们在精神分裂症患者中一直是缺陷的,可能作为遗传内表型和反应结果的定量生物学标志。
Cortical Neurophysiological event related potentials (ERPs) are multidimensional measures of information processing that are well suited to efficiently parse automatic and controlled components of cognition that span the range of deficits exhibited in schizophrenia patients. Components following a stimulus reflect the sequence of neural processes triggered by the stimulus, beginning with early automatic sensory processes and proceeding through controlled decision and response related processes. Previous studies employing ERP paradigms have reported deficits of information processing in schizophrenia across automatic through attention dependent processes including sensory registration (N1), automatic change detection (MMN), the orienting or covert shift of attention towards novel or infrequent stimuli (P3a), and attentional allocation following successful target detection processes (P3b). These automatic and attention dependent information components are beginning to be recognized as valid targets for intervention in the context of novel treatment development for schizophrenia and related neuropsychiatric disorders. In this review, we describe three extensively studied ERP components (N1, mismatch negativity, P300) that are consistently deficient in schizophrenia patients and may serve as genetic endophenotypes and as quantitative biological markers of response outcome.
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