Mental conditions reflected by the chaos of pulsation in capillary vessels
Mental conditions reflected by the chaos of pulsation in capillary vessels
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DOI：
10.1142/s0218127400001407
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发表时间：
2000-09-01
影响因子：
2.2
通讯作者：
Iwanaga, H
中科院分区：
文献类型：
--
作者：
Sumida, T;Arimitu, Y;Iwanaga, H
毛细血管脉动时间序列中确定性混沌的存在已通过实验得到澄清[Tsuda et al., 1992]。在本文中，我们首先通过替代数据测试重新确认了毛细血管脉动时间序列的非线性。其次，我们研究了处于不同自主神经系统状态的正常受试者和精神病患者的毛细血管数据的混沌特征。结果，正常受试者的交感神经支配状态的混乱波动减少。相反，正常人副交感神经占优势的状态，混沌波动增加。我们还发现，在精神病患者的症状阶段，混沌波动有所减少。对此事实的解释如下。 精神病患者在症状期处于边缘系统情绪灵活性和动机行为较差的状态。这种情况会影响下丘脑自主神经系统的调节。所以即使有轻微的压力，也很容易陷入自主神经系统的失衡。此外，在毛细血管混沌吸引子中，我们发现了两个部分，分别显示了交感神经系统刺激的起源作用和副交感神经系统刺激的起源作用。拓扑的几何变化是由两部分的相互作用引起的。根据我们的研究，我们得出的结论是，毛细血管脉动的混乱通过自主神经系统反映了精神状况。
The presence of deterministic chaos has been clarified experimentally in the time series of pulsation of capillary vessels [Tsuda et al., 1992]. In this paper, first we reconfirmed the nonlinearity of the time series of pulsation of capillary vessels with surrogate data testing. Second, we investigated the characteristics of chaos of capillary data on normal subjects in different states of the autonomic nervous system and on psychiatric patients. As a result, the chaotic fluctuations decreased for the state of sympathetic dominance of normal subjects. On the contrary, the chaotic fluctuations increased for the state of parasympathetic predominance of normal subjects. We also found that the chaotic fluctuations decreased in the symptomatic phase of psychiatric patients. Interpretation of this fact is as follows.Psychiatric patients in symptomatic phase are in a condition of poor flexibility of emotion and motivated behavior in the limbic system. This condition affects the regulation of the autonomic nervous system in the hypothalamus. So it is easy to fall into the imbalance of the autonomic nervous system even with slight stress. Furthermore, in the attractor of capillary chaos we found two parts that showed the role of origin of stimulation of the sympathetic nervous system and that of stimulation of the parasympathetic nervous system, respectively. The geometrical change of topology was caused by the interplay of two parts. From our study we concluded that chaos of pulsation in capillary vessels reflected mental conditions through the autonomic nervous system.