Department of Criminology, Bar-Ilan University, Israel; The Leslie and Susan Gonda (Goldschmied) Multidisciplinary Brain Research Center, Bar-Ilan University, Israel.
The Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, Faculty of Education, University of Haifa, Haifa, Israel.
Neuropsychologia. 2019 Mar 4;125:81-92. doi: 10.1016/j.neuropsychologia.2019.01.018. Epub 2019 Jan 31.
We use a unique environment of Whole Body Perceptual Deprivation (WBPD) to induce an altered state of consciousness (ASC) in our participants, and employ online EEG recording. We present individual EEG alpha profiles, and show how these data can be analyzed at the individual level. Our goal is to investigate to what degree subjective experience matches EEG alpha profile, and in particular, the various alpha hemispheric asymmetries observed in the frontal, parietal, and occipital lobes. Specifically, we consider positive (frontal L < R) or negative (frontal L > R) affect; a more verbal (L > R) or a more imagistic (R > L) mode of thinking; and a more trancelike (frontal > parietal) or more reflective (frontal < parietal) state of consciousness. Our results indicate that the individual alpha profiles are reflected in individual differences in subjective experience. However, the alpha profiles are confounded with the gender of the participant. Specifically, there is a predominant R > L asymmetry found for male participants, and a predominant L > R asymmetry found for female participants.
我们使用独特的全身感知剥夺（WBPD）环境来诱导参与者进入意识改变状态（ASC），并采用在线 EEG 记录。我们呈现了个体的 EEGα 图谱，并展示了如何在个体水平上分析这些数据。我们的目标是研究主观体验在多大程度上与 EEGα 图谱相匹配，特别是在前额、顶叶和枕叶中观察到的各种α 半球不对称性。具体来说，我们考虑积极（左额<右额）或消极（左额>右额）的影响；更具语言性（左>右）或更具形象性（右>左）的思维模式；以及更恍惚（额>顶）或更具反思性（额<顶）的意识状态。我们的结果表明，个体的α 图谱反映在主观体验的个体差异中。然而，α 图谱与参与者的性别有关。具体来说，对于男性参与者，发现了一种主要的右>左不对称性，而对于女性参与者，则发现了一种主要的左>右不对称性。
