Effects of multitasking-training on gray matter structure and resting state neural mechanisms.
Effects of multitasking-training on gray matter structure and resting state neural mechanisms.
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DOI：
10.1002/hbm.22427
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发表时间：
2014-08
影响因子：
4.8
通讯作者：
Kawashima, Ryuta
中科院分区：
文献类型：
--
作者：
Takeuchi, Hikaru;Taki, Yasuyuki;Nouchi, Rui;Hashizume, Hiroshi;Sekiguchi, Atsushi;Kotozaki, Yuka;Nakagawa, Seishu;Miyauchi, Carlos Makoto;Sassa, Yuko;Kawashima, Ryuta
关键词：
多任务处理（MT）是指同时参与两种或多种认知活动。机器翻译训练可提高未经训练的机器翻译任务的表现，并改变机器翻译期间大脑的功能活动。然而，机器翻译训练对机器翻译相关功能之外的神经机制的影响尚不清楚。我们研究了 4 周 MT 训练对年轻人休息期间区域灰质体积 (rGMV) 和功能连接 (resting-FC) 的影响。 MT 训练与三个前额皮质区域（左侧前额叶皮质（PFC）、背外侧 PFC（DLPFC）和左侧额下交界处）、左侧后顶叶皮质、左侧颞叶和外侧枕叶区域的 rGMV 增加以及右侧 DLPFC 和解剖结构之间的静息 FC 降低相关。 聚集在腹侧前扣带皮层（ACC）周围。我们的研究结果表明，参与机器翻译训练总体上与假定在机器翻译中发挥作用的区域和网络以及各种高阶认知功能中的任务无关可塑性（即神经变化不限于某些特定任务条件）相关。由于研究的性质，我们无法将机器翻译中涉及的每个任务组成部分和不同认知过程的影响分开，这些仍有待研究。 Hum Brain Mapp 35:3646–3660, 2014。© 2013 作者。人脑图谱由 Wiley periodicals, Inc. 出版
Multitasking (MT) constitutes engaging in two or more cognitive activities at the same time. MT‐training improves performance on untrained MT tasks and alters the functional activity of the brain during MT. However, the effects of MT‐training on neural mechanisms beyond MT‐related functions are not known. We investigated the effects of 4 weeks of MT‐training on regional gray matter volume (rGMV) and functional connectivity during rest (resting‐FC) in young human adults. MT‐training was associated with increased rGMV in three prefrontal cortical regions (left lateral rostral prefrontal cortex (PFC), dorsolateral PFC (DLPFC), and left inferior frontal junction), the left posterior parietal cortex, and the left temporal and lateral occipital areas as well as decreased resting‐FC between the right DLPFC and an anatomical cluster around the ventral anterior cingulate cortex (ACC). Our findings suggest that participation in MT‐training is as a whole associated with task‐irrelevant plasticity (i.e., neural changes are not limited to certain specific task conditions) in regions and the network that are assumed to play roles in MT as well as diverse higher‐order cognitive functions. We could not dissociate the effects of each task component and the diverse cognitive processes involved in MT because of the nature of the study, and these remain to be investigated. Hum Brain Mapp 35:3646–3660, 2014. © 2013 The Authors. Human Brain Mapping Published by Wiley Periodicals, Inc.
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DOI：
10.1073/pnas.0504136102
发表时间：
2005-07-05
影响因子：
11.1
作者：
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通讯作者：
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影响因子：
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影响因子：
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作者：
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影响因子：
14.5
作者：
BADDELEY, AD;BRESSI, S;SPINNLER, H
通讯作者：
SPINNLER, H
影响因子：
1.8
作者：
Bherer L;Kramer AF;Peterson MS;Colcombe S;Erickson K;Becic E
通讯作者：
Becic E