权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Interpretation of hemodynamic reaction pattern during mental stress based on attention-affect model

基于注意力-影响模型解读精神应激时血流动力学反应模式

基本信息

批准号：
16530472
负责人：
SAWADA Yukihiro
金额：
$ 0.58万
依托单位：
Sapporo Medical University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

项目摘要

It is well-known that mean blood pressure (MBP) is usually elevated during mental stress ; and according to Ohm's law, this elevation is attributed mainly to increases in cardiac output (CO) or to those in total peripheral resistance (TPR). They are referred to as cardiac-dominant (Cd : CO↑→MBP↑) and vascular-dominant (Vd : TPR↑→MBP↑) reaction patterns, respectively. It has been insisted that active and passive coping would contribute differently to provoking the Cd and Vd reaction patterns. However, there have been a fairly substantial amount of previous findings contradictory to the active-passive coping model. In the present research, it is assumed that during mental stress, the Vd reaction pattern is provoked when attention is relatively heightened compared with affect, whereas the Cd reaction pattern is provoked when the reverse is true. Four studies have been conducted on in order to demonstrate the superiority of attention-affect model to the active-passive coping model. In the … More first study, Attention-Affect Check List ‘AACL) was developed for the purpose of enabling individual facing mental stress to assess attention and affect. Following factor analyzing and reliability testing, four factors with four items each were extracted, including attention and affect. In the second study, two groups of subjects underwent mental arithmetic in an active or a passive coping condition. The active coping group exhibited the Cd reaction pattern ; and albeit less obviously, the passive coping group showed the same pattern. In the third study, active and passive coping situations were set up by preparing two mental stresses.(one expected to heighten attention and the other expected to heighten affect : both active coping conditions) and their yoked controls (both passive ones). Attention-affect ratio was quantified, based on AACL data. Albeit with some reservations, correlation analysis suggested that the results were in line with our mode. In the fourth study, the possibility that attentive and affective neural networks could exist differently was examined. Although preliminary, we have been getting positive evidence of this possibility using fMRI technique. Less

众所周知，平均血压（MBP）通常在精神紧张时升高;根据欧姆定律，这种升高主要归因于心输出量（CO）或总外周阻力（TPR）的增加。这两种反应模式分别被称为心脏优势反应模式（Cd：CO↑→MBP↑）和血管优势反应模式（Vd：TPR↑→MBP↑）。有人坚持认为，主动和被动的应对将有助于不同的挑起镉和Vd的反应模式。然而，有相当数量的先前的研究结果与主动-被动应对模式相矛盾。在本研究中，它是假设，在精神压力，Vd反应模式被挑起时，注意力相对提高相比，影响，而Cd反应模式被挑起时，反之亦然。为了证明注意-情感模式比主动-被动应对模式的优越性，我们进行了四个研究。在 ...更多信息第一项研究，注意力-情感检查表（Attention-AffectCheckList，AACL）是为了使面临精神压力的个体能够评估注意力和情感而开发的。经过因素分析和信度检验，共提取出四个因素，包括注意力和情感。在第二项研究中，两组受试者在积极或消极的应对条件下进行心算。积极应对组表现出镉反应模式，虽然不太明显，被动应对组表现出相同的模式。在研究三中，通过准备两种心理应激，设置了主动和被动应对情境。(one预期提高注意力，另一个预期提高影响：两者都是积极应对条件）和他们的轭控制（都是被动的）。根据AACL数据，对注意力-情感比率进行量化。相关性分析表明，尽管有一些保留，但结果与我们的模式一致。在第四项研究中，研究了注意神经网络和情感神经网络存在差异的可能性。虽然是初步的，我们已经得到了积极的证据，这种可能性使用功能磁共振成像技术。少