Stimulus dominance in dichotic listening.
Stimulus dominance in dichotic listening.
复制标题
双耳聆听中刺激占主导地位。
DOI：
10.1044/jshr.2403.430
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
Johnson,C
中科院分区：
文献类型：
--
作者：
Speaks,C;Carney,E;Niccum,N;Johnson,C
24名受试者接受了20个自然停止元音音节的分听。听众每次对30对音节中的每一对做出两个反应，这产生了30对音节中的每一对的480对反应。主要的分析集中在“刺激优势”，其中一个显着更高的分数发生在一对竞争音节之一，无论该音节的耳朵。有30对音节，有15个可能的刺激优势的情况下，观察到11个。对15对中的9对进行了浊音特征对比。其中七对的无音塞音比浊塞音的得分明显更高（优势），一对的浊塞音得分更高，还有一对的两个成员的得分基本相同。刺激优势，但是，不能充分的特点，作为一个优势的无声停止;三个六对中，其中有声共享也产生了显着的刺激优势。一对音节的刺激优势可能会与耳朵优势相互作用，在某些情况下甚至会超越耳朵优势。在30对音节中，11对产生了显著的右耳优势（REA），9对产生了显著的左耳优势（莱亚），10对的耳朵优势与零没有显著差异。对于特定的一对音节，耳朵优势的方向通常对应于接收主导音节的耳朵。
Twenty-four listeners received 20 dichotic-listening runs of natural stop-vowel syllables. Listeners marked two responses for each of 30 pairs of syllables per run, which yielded 480 pairs of responses for each of the 30 pairs of syllables. The principal analysis focused on "stimulus dominance" wherein a significantly higher score occurs for one of the competing syllables in a pair regardless of the ear to which that syllable is presented. With 30 pairs of syllables, there were 15 possible instances of stimulus dominance; 11 were observed. The voicing feature was contrasted for 9 of the 15 pairs. Seven of those pairs resulted in significantly higher scores (dominance) for the voiceless stop than for the voiced, one resulted in a higher score for the voiced member of the pair, and for one pair the scores for the two members were essentially the same. Stimulus dominance cannot, however, be characterized sufficiently as a dominance of voiceless over voiced stops; three of the six pairs in which voicing was shared also produced significant stimulus dominance. Stimulus dominance for a given pair of syllables may interact with, and in some cases override, the ear advantage. Of the 30 pairs of syllables, 11 produced a significant right ear advantage (REA), 9 produced a significant left ear advantage (LEA), and for 10 pairs the ear advantage was not significantly different from zero. For a specific pair of syllables, the direction of ear advantage usually corresponded to the ear that received the dominant syllable.