Higgins Meaghan C, Penney Sarah B, Robertson Erin K
Department of Psychology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS, BIP 6L2, Canada.
Early Intensive Behavioural Intervention Program, Nova Scotia Hearing and Speech Centres, Nova Scotia Department of Health and Wellness, Sydney, NS, Canada.
J Psycholinguist Res. 2017 Oct;46(5):1213-1235. doi: 10.1007/s10936-017-9490-2.
The roles of phonological short-term memory (pSTM) and speech perception in spoken sentence comprehension were examined in an experimental design. Deficits in pSTM and speech perception were simulated through task demands while typically-developing children (N [Formula: see text] 71) completed a sentence-picture matching task. Children performed the control, simulated pSTM deficit, simulated speech perception deficit, or simulated double deficit condition. On long sentences, the double deficit group had lower scores than the control and speech perception deficit groups, and the pSTM deficit group had lower scores than the control group and marginally lower scores than the speech perception deficit group. The pSTM and speech perception groups performed similarly to groups with real deficits in these areas, who completed the control condition. Overall, scores were lowest on noncanonical long sentences. Results show pSTM has a greater effect than speech perception on sentence comprehension, at least in the tasks employed here.
在一项实验设计中，研究了语音短期记忆（pSTM）和言语感知在口语句子理解中的作用。通过任务要求模拟pSTM和言语感知方面的缺陷，同时正常发育的儿童（N = 71）完成句子-图片匹配任务。儿童分别在控制组、模拟pSTM缺陷组、模拟言语感知缺陷组或模拟双重缺陷条件下进行测试。在长句子中，双重缺陷组的得分低于控制组和言语感知缺陷组，pSTM缺陷组的得分低于控制组，且略低于言语感知缺陷组。pSTM组和言语感知组的表现与这些领域存在实际缺陷并完成控制条件的组相似。总体而言，非规范长句子的得分最低。结果表明，至少在本研究采用的任务中，pSTM对句子理解的影响比言语感知更大。
