A three-year prospective study of spontaneous eye-blink rate in first-episode schizophrenia: relationship with relapse and neurocognitive function.

A three-year prospective study of spontaneous eye-blink rate in first-episode schizophrenia: relationship with relapse and neurocognitive function.
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首发精神分裂症自发眨眼率的三年前瞻性研究:与复发和神经认知功能的关系。

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发表时间:
2010
影响因子:
--
通讯作者:
E. Chen
E. Chen
中科院分区:
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文献类型:
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作者:
K. Chan;C. Hui;M. Lam;J. Y. M. Tang;G. Wong;S. K. Chan;E. Chen

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客观化 研究首发精神分裂症患者3年的自发性眨眼率及其与临床和认知的相关性。 方法 本研究对93例首发精神分裂症、分裂样和分裂情感性精神障碍患者进行了3年的前瞻性跟踪调查。纵向评估患者的眨眼率、阳性和阴性症状,以及一系列认知特征,包括言语流利性、言语记忆、视觉记忆和威斯康星卡分类测试成绩。结果。与匹配的对照组相比,在他们3年的随访中,眨眼率明显更高,但在最初出现时并不是这样。随着时间的推移,眨眼率的增加与复发的次数呈正相关。它还与威斯康星卡片分类测试中的逻辑记忆、语言流畅性、完成类别和持久性错误相关。眨眼频率的增加也与发病前的分裂型和分裂型特征有关。所有这些相关性在统计上都是显著的。 结论 眨眼频率随时间的变化可能反映了多巴胺能系统参与调节复发和认知功能的潜在参与。
OBJECTIVE To examine the spontaneous blink rate over a 3-year period and its clinical and cognitive correlates among patients with first-episode schizophrenia. METHODS This study prospectively followed 93 patients with first-episode schizophrenia, schizophreniform and schizoaffective disorders for 3 years. Patients were longitudinally assessed for blink rate, their positive and negative symptoms, and a range of cognitive features including verbal fluency, verbal memory, visual memory, and the Wisconsin Card Sorting Test performance. RESULTS. When compared with a matched control group, there was a significantly higher blink rate at their 3-year follow-up but not at initial presentation. The increase in blink rate over time correlated positively with the number of relapses. It also correlated with logical memory, verbal fluency, categories completed, and perseverative errors in the Wisconsin Card Sorting Test. The increased blink rate also correlated with pre-morbid schizoid and schizotypal traits. All these correlations were statistically significant. CONCLUSION The change in the blink rate over time may reflect underlying involvement of the dopaminergic system in mediating relapse and cognitive functions.
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