Altered executive function in the welders: A functional magnetic resonance imaging study

被引：16

作者：

Seo, Jeehye ^{[1
]}

Chang, Yongmin ^{[1
,2
,3
]}

Jang, Kyung Eun ^{[1
]}

Park, Jang Woo ^{[1
]}

Kim, Yang-Tae ^{[4
]}

Park, Sin Jae ^{[5
]}

Jeong, Kyoung Sook ^{[6
]}

Kim, Ahro ^{[7
]}

Kim, Suk Hwan ^{[8
]}

Kim, Yangho ^{[9
]}

机构：

[1] Kyungpook Natl Univ, Dept Med & Biol Engn, Daegu, South Korea

[2] Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea

[3] Kyungpook Natl Univ, Sch Med, Dept Mol Med, Daegu, South Korea

[4] Keimyung Univ, Sch Med, Dept Psychiat, Daegu, South Korea

[5] Univ Ulsan, Ulsan Univ Hosp, Coll Med, Dept Psychiat, Ulsan, South Korea

[6] Dongguk Univ, Ilsan Hosp, Coll Med, Dept Occupat & Environm Med, Goyang, South Korea

[7] Inje Univ, Ilsan Paik Hosp, Dept Neurol, Goyang, South Korea

[8] POHANG POSCO Hlth Care Ctr, Pohang, South Korea

[9] Univ Ulsan, Coll Med, Ulsan Univ Hosp, Dept Occupat & Environm Med, 290-3 Cheonha Dong, Ulsan 682060, South Korea

来源：

NEUROTOXICOLOGY AND TERATOLOGY | 2016年 / 56卷

关键词：

Manganese (Mn) exposure; Wisconsin Card Sorting Task; Executive function; fMRI; CARD SORTING TEST; MANGANESE EXPOSURE; WORKING-MEMORY; OCCUPATIONAL-EXPOSURE; TEST-PERFORMANCE; HIGH SIGNAL; BRAIN; WORKERS; LESIONS; DISCRIMINATION;

D O I：

10.1016/j.ntt.2016.05.003

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Chronic exposure to manganese (Mn) can lead to impairments in motor and cognitive functions. Several recent studies reported Mn-induced executive dysfunction. The present study compared the neural correlates of ongoing executive function of welders and healthy controls. Fifty-three welders and 44 healthy controls were enrolled. Participants were given functional magnetic resonance imaging (fMRI) scans and performed two modified versions of the Wisconsin Card Sorting Task (WCST) that differed in cognitive demand, and a task that established a high-level baseline (HLB) condition. Card Sorting Test and Word-Color Test were also used to assess executive performance. Neural activation of the bilateral superior-frontal cortex, right-inferior parietal cortex, and bilateral insula cortex were greater in healthy controls than in welders when contrasting the difficult version of the WCST with the HLB. There were also correlations between executive functions by the Card Sorting Test and Word-Color Test, and brain activation in the insula cortex using the WCST. Our results indicated that welders had altered neural processing related to executive function in the prefrontal cortex under,conditions of high cognitive demand. Welders also had less activation of the insula cortex, apart of a larger network comprising the lateral prefrontal cortex and parietal cortex. (C) 2016 Elsevier Inc. All rights reserved.

引用

页码：26 / 34

页数：9

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