Background Activity of the Cerebral Cortex and Superficial Muscles of the Fingers in Men with Different Levels of Individual EEG a-Frequency
Background Activity of the Cerebral Cortex and Superficial Muscles of the Fingers in Men with Different Levels of Individual EEG a-Frequency作者机构：Lesia Ukrainka Eastern European National University Lutsk 43001 Ukraine
出 版 物：《Journal of Life Sciences》 (生命科学（英文版）)
年 卷 期：2013年第7卷第10期
页 面：1048-1052页
学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学] 10[医学]
主 题：Functional status of rest individual alpha-frequency EEG power and coherency muscle tone.
摘 要：A test group consisting of 104 healthy men from the ages of 19 to 21 was divided into two groups according to the magnitude of their IAF （individual EEG Gt-ffequency） median--groups with high （n = 53, IA 〉 10.04 Hz） and low （n = 51, IAF 〈 10.03 Hz） levels of IAF. Differences between the groups in terms of the power and coherence of EEG oscillations and the EMG signal average amplitude at rest were estimated. It was found that the dominant role of the thalamocortical interactions （thalamus and cortex） in the group of testees having a high IAF causes the greater differentiation and rationality of the downstream effects on muscles and provides more economic baselines and contractile capabilities of the leading hand flexor muscles. Increased non-specific influences of the limbic system and reticular formation in providing the testees＇ cortical activity under conditions of a low frequency are accompanied by a smaller lateral and reciprocal specificity in the downstream impacts, and by a lower performance of supraspinal irmervations.
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