[单卵双胞胎的听觉偏侧化：一项关于双耳辅音-元音回忆的研究]

[Auditory lateralization in monozygotic twins: a study with dichotic consonant-vowel recall].

作者信息

Jäncke L, Kaiser P, Herzog A, Steinmetz H

机构信息

Abteilung für kybernetische Psychologie und Psychobiologie, Heinrich-Heine-Universität, Düsseldorf, BRD.

出版信息

Folia Phoniatr (Basel). 1993;45(6):295-302.

PMID:8253454

Abstract

Auditory lateralization was examined in 21 monozygotic twin pairs (n = 42) and 52 singletons (healthy volunteers). Nine of the twin pairs were discordant for handedness, and 12 consisted of concordantly right-handed persons. All subjects were studied with a German dichotic consonant-vowel recall test using the syllables /ka/, /ta/, /pa/, /ga/, /da/ and /ba/ as stimuli. There was (i) a marked right-ear advantage in right handed singletons (as expected), (ii) no significant ear advantage among monozygotic twins (neither among those concordant nor those discordant handedness), and (iii) no relation between the direction of ear advantage within twin pairs. These data suggest that auditory lateralization is largely determined nongenetically.

摘要

对21对同卵双胞胎（n = 42）和52名单胎个体（健康志愿者）进行了听觉偏侧化检查。其中9对双胞胎在利手方面不一致，12对由均为右利手的个体组成。所有受试者均接受了一项德语双耳辅音 - 元音回忆测试，使用音节/ka/、/ta/、/pa/、/ga/、/da/和/ba/作为刺激。结果发现：（i）右利手的单胎个体存在明显的右耳优势（正如预期）；（ii）同卵双胞胎中没有显著的耳优势（无论是利手一致还是不一致的双胞胎）；（iii）双胞胎对中耳优势方向之间没有关联。这些数据表明，听觉偏侧化在很大程度上由非遗传因素决定。