바로가기메뉴

본문 바로가기 주메뉴 바로가기

ACOMS+ 및 학술지 리포지터리 설명회

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

logo

ISSN : 1226-9654

논문 상세

이전 다음
논문 투고

Vol.21 No.4

Citation Share

기억 표상과 지각적 입력 간 비교 과정을 통해 본 시각작업기억 표상의 특성

Properties of Visual Working Memory Representations as Examined by Memory-Perception Comparison Process

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2009, v.21 no.4, pp.265-282
https://doi.org/10.22172/cogbio.2009.21.4.002
현주석 (중앙대학교)
현주석. (2009). 기억 표상과 지각적 입력 간 비교 과정을 통해 본 시각작업기억 표상의 특성. 한국심리학회지: 인지 및 생물, 21(4), 265-282, https://doi.org/10.22172/cogbio.2009.21.4.002

초록

시각 작업 기억에 저장되는 정보의 표상 특성을 조사하기 위해, 변화 탐지 과제에서 기억 항목과 검사 항목이 비교되는 과정을 사건 관련 전위 측정법을 통해 관찰하였다. 피험자는 기억 항목으로 제시된 막대들의 방위 변화를 검사 항목과의 비교를 통해 탐지하도록 요구되었으며, 각 변화 탐지 시행 내에서 기억해야 할 항목의 개수는 1~6개로 변화되었다. 기억과 검사 항목 간 차이에 의해 촉발되는 주의 전환 시점을 N2pc 성분의 발현 시간을 통해 추정한 결과, 항목 개수 증가에 관계없이 주의 전환 시점은 일정하였다. 이는 기억과 검사 항목 간 비교 처리 과정이 매우 신속하며 즉각적으로 수행됨을 의미하며, 기억에 저장된 정보의 표상이 3~4개의 독립된 고정해상도 슬롯들에 저장됨을 시사한다.

keywords
시각작업기억, 변화 탐지, 비교, N2pc, 고정해상도 슬롯, visual working memory, change-detection, comparison, N2pc, fixed-resolution slot, visual working memory, change-detection, comparison, N2pc, fixed-resolution slot

Abstract

To examine properties of visual working memory (VWM) representations, event-related potentials were measured during the comparison process between memory and perception in a change-detection task. Subjects were asked to detect an orientation change upon a memory display onset after remembering a few orientation bars, and the memory set size was varied from 1 to 6. Onset latencies of attention shift triggered by a memory-perception difference were measured by N2pc component onset time, and the latencies were constant regardless of the number of items in the display. The results indicate that the comparison between VWM representations and perceptual inputs occurs very rapidly and is accomplished immediately upon a test display onset, and further that the representations in VWM are stored into 3-4 fixed-resolution slots.

keywords
시각작업기억, 변화 탐지, 비교, N2pc, 고정해상도 슬롯, visual working memory, change-detection, comparison, N2pc, fixed-resolution slot, visual working memory, change-detection, comparison, N2pc, fixed-resolution slot

참고문헌

1.

현주석 (2008a). 시각적 탐색에서 표적에 의해 유발된 N2pc 성분의 특성 및 측정. 한국심리학회지: 실험, 20(4), 247-263.

2.

현주석 (2008b). 차폐 자극이 시각 작업 기억 비교 과정에 미치는 영향. 한국심리학회지: 실험, 20(3), 167-178.

3.

Agam, Y., Hyun, J. -S., Danker, J. F., Zhou F., Kahana, M., & Sekuler, R. (2009). Early neural signature of visual short-term memory. NeuroImage, 44(2). 531-536.

4.

Alvarez, G. A., & Cavanagh, P. (2004). The capacity of visual short-term memory is set both by information load and by number of objects. Psychological Science, 15, 106-111.

5.

Baddeley, A. D. (1986). Working Memory. Oxford: Clarendon.

6.

Cowan, N. (2001). The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behavioral and Brain Sciences, 24, 87-185.

7.

Eimer, M. (1996). The N2pc component as an indicator of attentional selectivity. Electroencephalography and Clinical Neurophysiology, 99, 225-234.

8.

Hyun, J.-S., Hollingworth, A., & Luck, S. J. (2006). How change-detection is related to visual search: A change in a remembered object is like a simple feature. [Abstract]. Journal of Vision, 6(6), 985a.

9.

Hyun, J.-S., & Luck, S. J. (2007). Visual working memory as the substrate for mental rotation. Psychonomic Bulletin & Review, 14(1), 154-158.

10.

Hyun, J.-S., Woodman, G. F., Vogel, E. K., Hollingworth, A., & Luck, S. J. (2009). The comparison of visual working memory representations with perceptual inputs. Journal of Experimental Psychology: Human Perception and Performance, 35, 1140-1160.

11.

Hyun, J.-S., Woodman, G. F., Vogel, E. K., Niese, A. T., & Luck, S. J. (2003). How are visual inputs compared with memory representations in the change-detection paradigm? [Abstract]. Journal of Vision, 3(9), 322a.

12.

Jennings, J. R., & Wood, C. C. (1976). The e-adjustment procedure for repeated-measures analyses of variance. Psychophysiology, 13, 277-278.

13.

Jonides, J. (1981). Voluntary versus automatic control over the mind's eye's movement. In J. B. Long & A. D. Baddeley (Eds.), Attention and Performance IX (pp.187-203). Hillsdale, New Jersey: Erlbaum.

14.

Kok, A. (2001). On the utility of P3 amplitude as a measure of processing capacity. Psychophysiology, 38, 557-577.

15.

Loftus, G. R., & Masson, M. E. J. (1994). Using confidence intervals in within-subject designs. Psychonomic Bulletin & Review, 1(4), 476-490.

16.

Luck, S. J. (2005). An Introduction to the Event-Related Potential Technique. Cambridge, MA: MIT Press.

17.

Luck, S. J., & Ford, M. A. (1998). On the role of selective attention in visual perception. Proceedings of the National Academy of Sciences, U.S.A., 95, 825-830.

18.

Luck, S. J., Girelli, M., McDermott, M. T., & Ford, M. A. (1997). Bridging the gap between monkey neurophysiology and human perception: An ambiguity resolution theory of visual selective attention. Cognitive Psychology, 33, 64-87.

19.

Luck, S. J., & Hillyard, S. A. (1990). Electrophysiological evidence for parallel and serial processing during visual search. Perception and Psychophysics, 48, 603-617.

20.

Luck, S. J., & Hillyard, S. A. (1994). Electrophysiological correlates of feature analysis during visual search. Psychophysiology, 31, 291-308.

21.

Luck, S. J., & Vogel, E. K. (1997). The capacity of visual working memory for features and conjunctions. Nature, 390, 279-281.

22.

Luck, S. J., Woodman, G. F., & Vogel, E. K. (2000). Event-related potential studies of attention. Trends in Cognitive Sciences, 4, 432-440.

23.

Mueller, H. J., & Rabbit, P. M. A. (1989). Reflexive and voluntary orienting of visual attention: Time course of activation and resistance to interruption. Journal of Experimental Psychology: Human Perception and Performance, 15, 315-330.

24.

Nakayama, K., & Mackeben, M. (1989). Sustained and transient components of focal visual attention. Vision Research, 29, 1631-1647.

25.

Verleger, R. (1997). On the utility of P3 latency as an index of mental chronometry. Psychophysiology, 34, 131-156.

26.

Vogel, E. K., & Machizawa, M. G. (2004). Neural activity predicts individual differences in visual working memory capacity. Nature, 428, 748-751.

27.

Vogel, E. K., Woodman, G. F., & Luck, S. J. (2001). Storage of features, conjunctions, and objects in visual working memory. Journal of Experimental Psychology: Human Perception and Performance, 27, 92-114.

28.

Woodman, G. F., & Luck, S. J. (1999). Electrophysiological measurement of rapid shifts of attention during visual search. Nature, 400, 867-869.

29.

Woodman, G. F., & Luck, S. J. (2003). Serial deployment of attention during visual search. Journal of Experimental Psychology: Human Perception and Performance, 29, 121-138.

30.

Zhang, W., & Luck, S. J. (2003). Slot-like versus continuous representations in visual working memory. Journal of Vision, 3, 681a.

31.

Zhang, W., & Luck, S. J. (2008). Discrete fixed-resolution representations in visual working memory. Nature, 453, 233-235.

한국심리학회지: 인지 및 생물

논문 투고 OA 정책