{"title":"[The functional significance of alpha activity in the visual cortex for the recognition of images and movement].","authors":"I A Shevelev","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The idea of the EEG alpha-waves as a rhythmically spreading scanning process was tested in 27 subjects. The stimuli presentation was not synchronised with the alpha-wave phase in control. In experimental group, recognition of different-shape figures and size coincided with one of four phases of the EEG alpha-wave in occipital area. Under flicker stimulation through closed eyes with the alpha-frequency, 11 of the 12 subjects perceived distinct illusory visual objects. The optimal stimulation frequency was always within the alpha-range and closely correlated with the individual predominant alpha-frequency. The data obtained corroborate the theory that the alpha-wave in the visual cortex reflects a uniformity of the spreading scanning process which plays a major part in the process of visual recognition.</p>","PeriodicalId":77130,"journal":{"name":"Fiziologicheskii zhurnal imeni I.M. Sechenova","volume":"82 10-11","pages":"20-33"},"PeriodicalIF":0.0000,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fiziologicheskii zhurnal imeni I.M. Sechenova","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The idea of the EEG alpha-waves as a rhythmically spreading scanning process was tested in 27 subjects. The stimuli presentation was not synchronised with the alpha-wave phase in control. In experimental group, recognition of different-shape figures and size coincided with one of four phases of the EEG alpha-wave in occipital area. Under flicker stimulation through closed eyes with the alpha-frequency, 11 of the 12 subjects perceived distinct illusory visual objects. The optimal stimulation frequency was always within the alpha-range and closely correlated with the individual predominant alpha-frequency. The data obtained corroborate the theory that the alpha-wave in the visual cortex reflects a uniformity of the spreading scanning process which plays a major part in the process of visual recognition.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
