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  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

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작업기억의 음운루프에서 내현적 조음억제행동의 자동화에 대한 연구

A Study on Automatization of Covert Articulatory Suppression Behaviors with Phonological Loop of Working Memory

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2015, v.27 no.2, pp.275-290
https://doi.org/10.22172/cogbio.2015.27.2.010
정용석 (진주교육대학교 교육학과)
박주용 (서울대학교)
박창호 (전북대학교)

초록

작업기억의 음운루프가 음운저장고와 조음시연장치로 구성된다는 Baddeley의 연구는 즉시순차회상 과제에서 기억항목에 대한 조음을, 이와 무관한 음절을 시연시킴으로써, 억제시키는 기법을 사용하였다. 이때 조음억제를 외현적으로 하는지 내현적으로 하는지는 심각하게 고찰하지 않았는데, 정용석 등(2013)은 내현적 조음억제가 조건에 따라 자동화되어 작업기억 수행이 영향을 받을 수 있다는 결과를 얻었다. 언어중재이론(Vygotsky, 1962)에서 보면 내현적 조음억제에서는 반복이 언어자동화를 촉진시키지만, 외현적 조음억제에서는 반복이 언어 자동화에 방해가 될 것이다. 그리고 조음억제행동의 자동화가 일어난다면 그 효과는 기억항목 전체로 확산될 가능성이 있다. 실험 1은 기억항목 간의 음운유사효과를 조음억제 유형에 따라 제시위치별로 살펴보았다. 그 결과, 내현적 조음억제 조건에서 외현적 조음억제 조건에 비해 정반응수가 전반적으로 더 좋았으며, 내현적 조건에서는 중간 제시위치 항목에 대해서도 음운유사효과가 관찰되었다. 실험 2는 기억과제의 반복 수행 효과를 살펴보았는데, 내현적 조건의 수행이 전반적으로 우수하였지만, 조음억제 유형과 반복 여부의 상호작용 경향성이 관찰되었다. 두 실험의 결과는 대체로 언어 자동화 가설로 설명될 수 있으며, 이는 Baddeley의 음운루프 모형이 조음억제행동의 자동화를 고려하여 수정될 필요가 있음을 시사한다. 본 연구의 제한점과 후속 연구에의 제안 등을 다루었다.

keywords
working memory, articulatory suppression behaviors, phonological loop, phonological store, speech automatization, 작업기억, 조음억제행동, 음운루프, 음운저장고, 언어 자동화

Abstract

Baddeley’s study (1986, 2000) suggesting that phonological loop of working memory consists of phonological store and articulatory rehearsal system used the paradigm that articulation of memory items could be suppressed by rehearsing irrelevant syllables simultaneously in the immediate serial recall task. He did not consider seriously whether articulatory suppression should be covert or overt. Chung et al. (2013) obtained the result that covert articulatory suppression could be automatized and working memory performance could be influenced by this. From the viewpoint of verbal mediation theory (Vygotsky, 1962), repetitive performance could facilitate speech automatization in the covert articulatory suppression condition, but inhibit it in the overt condition. And the effect of speech automatization, if it happens, could be distributed over all the memory items. Experiment 1 probed phonological similarity effect at each serial position of memory items in the covert and overt articulatory suppression condition. The result showed that the covert condition observed generally more accurate responses, and phonological similarity effect at the middle position as well as the late (recent) positions. Experiment 2 probed the repetition effect of performing memory tasks, which showed that the covert condition resulted in generally better performance and the tendency of interaction between articulatory suppression condition and repetition. The results of both experiments could be explained roughly by the speech automatization hypothesis, which suggests that Baddeley’s model of phonological loop should be modified in consideration of automatization of articulatory suppression behaviors. Limitations of this study and suggestions for further study were discussed.

keywords
working memory, articulatory suppression behaviors, phonological loop, phonological store, speech automatization, 작업기억, 조음억제행동, 음운루프, 음운저장고, 언어 자동화

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한국심리학회지: 인지 및 생물