Yousefzadeh Fateme, Pirzad Jahromi Gila, Mokari Manshadi Ehsan, Hatef Boshra
Medical Engineering, Alberta, Canada.
Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Basic Clin Neurosci. 2019 May-Jun;10(3):257-268. doi: 10.32598/bcn.9.10.195. Epub 2019 May 1.
"Sajdah", a prostration position, is part of Muslim daily prayers. It seems to have several effects on the brain and heart function. This study aimed to investigate the prefrontal brain activity after 10 seconds of Sajdah in the direction of Qibla (the direction that a Muslim prays) while putting the forehead on the ground.
Three women and two men participated in this pilot study. Linear (absolute and relative power of θ (4-8Hz), α 1 (8-10 Hz), α 2 (10-12 Hz), β 1 (12-16 Hz), β 2 (16-20 Hz), β 3 (20-30 Hz), γ 1 (30-40 Hz), γ 2 (40-50 Hz) and non-linear features (approximate entropy, Katz fractal dimension, Petrosian fractal dimension, spectral entropy, and sample entropy) from Fps channel were calculated.
The relative β to γ band, approximate and sample entropy, Petrosian fractal dimension and mean of amplitude decreased in open eye state in women. While θ to γ bands in the closed eye state decreased after Sajdah in women. The absolute γ bands in closed eye state and relative β band in open eye state increased after Sajdah in men.
The pilot study showed that 10 seconds of Sajdah has effects on brain activity and sometimes showed the opposite effect on genders.
“叩头”是一种跪拜姿势，是穆斯林日常祈祷的一部分。它似乎对大脑和心脏功能有多种影响。本研究旨在调查在面向天房（穆斯林祈祷的方向）叩头10秒且额头触地时前额叶的大脑活动。
三名女性和两名男性参与了这项初步研究。计算了来自Fps通道的线性特征（θ（4 - 8Hz）、α1（8 - 10Hz）、α2（10 - 12Hz）、β1（12 - 16Hz）、β2（16 - 20Hz）、β3（20 - 30Hz）、γ1（30 - 40Hz）、γ2（40 - 50Hz）的绝对和相对功率）以及非线性特征（近似熵、卡茨分形维数、彼得罗相分形维数、谱熵和样本熵）。
女性在睁眼状态下，相对β到γ频段、近似熵和样本熵、彼得罗相分形维数以及振幅均值降低。而女性在闭眼状态下，叩头后θ到γ频段降低。男性在叩头后，闭眼状态下的绝对γ频段和睁眼状态下的相对β频段增加。
初步研究表明，10秒的叩头对大脑活动有影响，且有时对不同性别表现出相反的效果。
