A timing-based interaction between phonological working memory and long-term phonological knowledge

2016 Fiscal Year Final Research Report

• Project/Area Number: 25380980
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Experimental psychology
• Research Institution: Kyoto University
• Principal Investigator: SAITO SATORU 京都大学, 教育学研究科, 教授 (70253242)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 記憶 / 作動記憶 / 音韻的作動記憶 / 長期音韻知識 / タイミング制御

Outline of Final Research Achievements

It is well established that long-term phonological knowledge contributes to short-term retention of verbal sequences. The present project examined how temporal factors influence usage of long-term phonotactic knowledge. First, we compared recall performance for two types of nonword lists, consisting of a mixture of high- and low- frequency bi-morae sharing the same bi-mora frequency. In one type of list, temporal gaps were inserted at low-frequency bi-mora positions. In another type, temporal gaps were inserted at high-frequency bi-mora positions where we expected a disconnection of the two morae, which otherwise possessed a strong association. The latter manipulation reduced the effect of bi-mora frequency on recall performance. Second, experiments manipulated position-specific and position-free bi-mora frequency. The results indicated the presence of two types of long-term phonotactic knowledge implementation, one being more and the other being less sensitive to temporal structure.

Free Research Field

認知心理学