Asymmetry in Resting Alpha Activity: Effects of Handedness

• 作者: Jenna Pierce Mark W. Geisler Nathan Bellorado Ruth E. Propper Stephen D. Christman
• 来源期刊: 医学心理学(英文)
• 学科: 医学
• 关键词: EEG HANDEDNESS Asymmetry EMOTION
• 年，卷（期）: 2012,（4）
• 页码范围: 86-90
• 页数: 5页
• 分类号: R73

摘要

Study Aim: Frontal electroencephalographic (EEG) alpha band power during rest shows increased right, and/or de-creased left, hemisphere activity under conditions of state or trait withdrawal-associated affect. Non-right-handers (NRH) are more likely to have mental illnesses and dispositions that involve such withdrawal-related affect. The aim of the study was to examine whether NRH might be characterized by increased right, relative to left, hemisphere activity during rest. Methods: The present research investigated that hypothesis by examining resting EEG alpha power in consistently-right-handed (CRH) and NRH individuals. Results: In support of the hypothesis, NRH demonstrated de-creased right hemisphere alpha power, and therefore increased right hemisphere activity, during rest, compared to CRH. Conclusions: The study demonstrates further support for an association between increased right hemisphere activity and negative affect via an association between such EEG activity and NRH.