Effect of one-session focused attention meditation on the working memory capacity of meditation novices: A functional near-infrared spectroscopy study.
Effect of one-session focused attention meditation on the working memory capacity of meditation novices: A functional near-infrared spectroscopy study.
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一项集中注意力冥想对冥想新手的工作记忆能力的影响：一项功能性近红外光谱研究。
DOI：
10.1002/brb3.2288
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发表时间：
2021-08
影响因子：
3.1
通讯作者：
Tozato F
中科院分区：
文献类型：
--
作者：
Yamaya N;Tsuchiya K;Takizawa I;Shimoda K;Kitazawa K;Tozato F
以往的研究表明，单次集中注意力冥想（FAM）可以改善自上而下的注意力控制，这是工作记忆容量（WMC）的因素之一。此外，FAM与WMC共享各种神经基质，包括背外侧前额叶皮层（DLPFC）。因此，我们假设一个会话FAM将通过激活由自上而下的注意力控制引起的DLPFC来改善WMC。在这项研究中，我们研究了FAM是否改变了几乎没有冥想经验的个体的WMC。参与者被随机分配到FAM组（N = 13）或对照组（N = 17），他们从事随机思维（即，mind-wandering）.在每次15分钟干预前后，根据阅读广度测试中正确答案的总数测量参与者的WMC。在每次干预期间，使用功能性近红外光谱测量参与者DLPFC的血流量，并确定自上而下的注意力控制效果。在FAM组，WMC增加，双侧DLPFC在干预过程中被激活。对照组干预后WMC降低，双侧DLPFC未激活。在所有参与者中，WMC的增加与双侧DLPFC的激活之间也存在相关性。研究结果表明，FAM期间自上而下的注意力控制可以激活双侧DLPFC并增加冥想新手的WMC。在集中注意力冥想过程中，自上而下的注意力控制可以激活双侧DLPFC，并增加冥想新手的工作记忆容量。
Previous studies have revealed that one‐session focused attention meditation (FAM) can improve top‐down attention control, which is one of the factors of working memory capacity (WMC). In addition, FAM shares various neural substrates, including the dorsolateral prefrontal cortex (DLPFC), with WMC. Thus, we hypothesized that one‐session FAM would improve WMC by activating the DLPFC evoked by the top‐down attention control. In this study, we examined whether FAM modified WMC in individuals with little to no meditation experience. The participants were randomly assigned to either the FAM group (N = 13) or the control group (N = 17) who engaged in random thinking (i.e., mind‐wandering). Before and after each 15‐min intervention, the participants’ WMC was measured according to the total number of correct answers in the Reading Span Test. During each intervention, functional near‐infrared spectroscopy was employed to measure the blood flow in the participants’ DLPFC and determine the top‐down attention control effect. In the FAM group, WMC increased, and the bilateral DLPFC was activated during the intervention. As for the control group, WMC decreased after the intervention, and the bilateral DLPFC was not activated during the intervention. A correlation was also found among all participants between the increase in WMC and the activation of the bilateral DLPFC. The study findings suggest that top‐down attention control during FAM can activate the bilateral DLPFC and increase WMC among meditation novices. Top‐down attentional control during focused attention meditation can activate the bilateral DLPFC and increase working memory capacity among meditation novices.
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影响因子：
3
作者：
Dunn, BR;Hartigan, JA;Mikulas, WL
通讯作者：
Mikulas, WL
影响因子：
2.5
作者：
Berryhill, Marian E.;Jones, Kevin T.
通讯作者：
Jones, Kevin T.
DOI：
10.1016/j.cortex.2012.05.022
发表时间：
2013-05
期刊：
Cortex; a journal devoted to the study of the nervous system and behavior
影响因子：
--
作者：
Barbey AK;Koenigs M;Grafman J
通讯作者：
Grafman J
影响因子：
2.4
作者：
Colzato, Lorenza S.;Sellaro, Roberta;Hommel, Bernhard
通讯作者：
Hommel, Bernhard
影响因子：
5.2
作者：
Andrews-Hanna JR;Smallwood J;Spreng RN
通讯作者：
Spreng RN