Appearance of high-frequency alpha band with disappearance of low-frequency alpha band in EEG is produced during voluntary abdominal breathing in an eyes-closed condition
Appearance of high-frequency alpha band with disappearance of low-frequency alpha band in EEG is produced during voluntary abdominal breathing in an eyes-closed condition
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DOI：
10.1016/j.neures.2004.08.005
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发表时间：
2004-11-01
影响因子：
2.9
通讯作者：
Arita, H
中科院分区：
文献类型：
--
作者：
Fumoto, M;Sato-Suzuki, I;Arita, H
本研究检测了22名健康受试者自主腹式呼吸（VAB）对脑电图（EEG）的影响。VAB的特征是在闭眼状态下腹部肌肉持续有节奏的收缩20分钟。指示呼吸速度非常慢，即3-4次/分钟（吸气时间6-8秒，呼气时间9-12秒）。闭眼后立即出现低频α带，但随后消失，并在VAB发病45 min后被新的高频α带所取代。通过POMS和STAI问卷得分评估，受试者在VAB期间和/或之后有活力活动的感觉，焦虑倾向减少。另一方面，在闭眼状态下休息时，低频α波段的消失被θ / δ波段的出现所取代。在这种情况下，受试者变得昏昏欲睡。因此，我们得出结论，高频α活动的增加与活跃状态和焦虑减少的趋势有关。由于VAB后尿血清素水平明显升高，我们认为脑内的血清素能神经元可能引起脑电图模式的变化。(C) 2004爱思唯尔爱尔兰有限公司和日本神经科学学会。版权所有。
This study examined the effects of voluntary abdominal breathing (VAB) on the electroencephalogram (EEG) in 22 healthy subjects. VAB was characterized by prolonged rhythmic contraction of abdominal muscles for 20 min in an eyes-closed condition. The breathing rate was instructed to be very slow, i.e., 3-4 breaths/min (inspiratory time for 6-8 s and expiratory time for 9-12 s). A low-frequency alpha band appeared immediately after eye closing, but it later disappeared and was replaced by a new development of a high-frequency alpha band 45 min after the onset of VAB. The Subjects had a feeling of vigor-activity with a tendency of reduced anxiety during and/or after VAB, as assessed by POMS and STAI questionnaire scores. On the other hand, during resting in the eye-closed condition, the disappearance of the low-frequency alpha band was replaced by the occurrence of a theta/delta band. The subjects became drowsy in this condition. We therefore conclude that the increase in high-frequency alpha activity is linked to the state of vigor-activity with a tendency of reduced anxiety. Since the urinary serotonergic level significantly increased after the VAB, we suggest that the serotonergic neurons within the brain may produce the changes in the EEG patterns. (C) 2004 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.