酒精对半球差异和信号检测阈值的影响。

Alcohol influence on hemisphere differences and signal detection thresholds.

作者信息

Damkot D K, Frysinger R C

出版信息

Psychopharmacology (Berl). 1978 Mar 1;56(2):173-7. doi: 10.1007/BF00431845.

Abstract

Six right- and six left-handed subjects were run in a repeated measures design to determine the influences of alcohol on hemiretina detection thresholds. Stimuli were presented tachistoscopically to the hemiretinae at blood alcohol concentrations (BACs) of 0, 50, and 100 mg%. The nasal hemiretinae had higher thresholds than the temporal hemiretinae and this difference was independent of alcohol. Alcohol interacted with visual field and handedness. The results showed that the highest alcohol dose (100 mg%) raised detection thresholds more for the hemifield contralateral to the subject's preferred hand than the ipsilateral hemified. Results are discussed in terms of lateral dominance and attention.

摘要

六名右利手和六名左利手受试者参与了一项重复测量设计实验，以确定酒精对视网膜半侧检测阈值的影响。在血液酒精浓度（BAC）为0、50和100mg%时，通过速示器向视网膜半侧呈现刺激。鼻侧视网膜半侧的阈值高于颞侧视网膜半侧，且这种差异与酒精无关。酒精与视野和利手存在交互作用。结果表明，最高酒精剂量（100mg%）使受试者优势手对侧半视野的检测阈值升高幅度大于同侧半视野。从侧化优势和注意力方面对结果进行了讨论。