Cortical Arousal Strategies in Left-Handers during the Aural Perception and Manual Playback of Mono-and Polyphonic Rhythmical Patterns  

作　　者：Pavlovych Olga Sergiyivna Morenko Alevtyna Grigorivna Kotyk Olena Adamivna Vlasjuk Svitlana Sergiyivna 

机构地区：[1]Lesia Ukrainka Volyn National University, Lutsk 0668262723, Ukraine

出　　处：《Journal of Life Sciences》2012年第12期1408-1413,共6页生命科学（英文版）

摘　　要：The actual purpose of this study is to establish the cortical arousal strategies （according to the power of the EEG （electroencephalogram） a-oscillations） during the aural perception as well as manual playback of mono- and polyphonic rhythmical patterns in men with left profile. The study involved 35 men from 19 to 21 years old with the left profile of the manual and aural asymmetries. EEG was recorded in the functional status of rest： during the aural perception and playback of mono- and polyphonic rhythmical patterns with the left and right hand fingers. The monophony in the rhythmical pattern sounding relative to monophonic patterns is followed by more expressed and widespread cortical processes of the EEG a-oscillation depression. Given patterns indicate a greater intensity of ascending nonspecific arousal strategies of data processing by men on conditions of the sound and harmonious complications of the pattern structure. The aural perception and playback of rhythmical patterns with both hands were accompanied by the increased significance of arousal processes in the right hemisphere. This may be due to the dominant role of the hemisphere during the formation of the innervation impacts on the left-hander＇s neuro-motor apparatus. More differentiated changes in the cerebral cortex were installed during the left hand activation.

关 键 词：LEFT-HANDERS mono- and polyphonic sounding alpha rhythm rhythmic sense. 

分 类 号：TN912.34[电子电信—通信与信息系统] Q98[电子电信—信息与通信工程]