A mechanism of deficient interregional neural communication in schizophrenia.

A mechanism of deficient interregional neural communication in schizophrenia.
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精神分裂症区域间神经通讯缺陷的机制

DOI:
10.1111/psyp.12393
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Rockstroh
Rockstroh
中科院分区:
心理学3区
文献类型:
--
作者:
Wienbruch;Meissner;Miller;Rockstroh

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精神分裂症(SZ)的认知干扰控制被破坏。神经影像学研究将干扰控制与前额叶、前扣带回(ACC)和顶叶皮层网络中的4-7 Hz(theta)神经活动联系起来。这个网络中的通讯机制以及它在精神分裂症中是如何被破坏的尚不清楚。在Stroop色词干扰任务中检查了17名健康对照(HC)和14名SZ患者的行为表现和EEG θ振荡。在ACC、左额中回(MFG)和顶下区,颜色词不一致在词开始后400 ms和600-900 ms左右诱导SZ比HC更少的θ功率增加。耦合ACC θ相位MFG γ振幅,索引区域间通信,是在SZ比HC弱。结果表明,ACC-MFG θ功率调制作为支持执行功能的干扰控制机制,在精神分裂症中被破坏。
Cognitive interference control is disrupted in schizophrenia (SZ). Neuroimaging studies relate interference control to 4–7 Hz (theta) neural activity in a network spanning prefrontal, anterior cingulate (ACC), and parietal cortices. The mechanism of communication in this network and how it is disrupted in schizophrenia are unclear. Behavioral performance and EEG theta oscillations were examined in a Stroop color‐word interference task in 17 healthy controls (HC) and 14 SZ patients. Color‐word incongruence induced less theta power increase in SZ than in HC around 400 ms and 600–900 ms after word onset in ACC, left middle frontal gyrus (MFG), and inferior parietal regions. Coupling of ACC theta phase to MFG gamma amplitude, indexing interregional communication, was weaker in SZ than in HC. Results suggest ACC‐MFG theta power modulation as a mechanism of interference control that supports executive function and is disrupted in schizophrenia.
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