Distinct load effects by set-size and target-distractor similarity in visual search

Using the simultaneous-sequential presentation search paradigm, we investigated how different types of load manipulation would tap into attentional resources and the concrete mechanism by which search would be performed. Search display perceptual load was manipulated by set-size and target-distractor similarity. The benefit of sequential presentation was larger when the load was increased by number of search items than when target-distractor discrimination was made more demanding. Considering that the load effect could be result from both perceptual load and statistical decision noise, the current results are explained by suggesting that set-size will determine whether the search process will be serial or parallel, regardless of perceptual difficulty. Factors that can set the limit of attentional resources are also discussed.

keywords: visual search, capacity limit, serial process, parallel process, 시각 탐색, 용량제한, 순차 처리, 병렬 처리

참고문헌

Duncan, J. (1980). The locus of interference in the perception of simultaneous stimuli. Psychological Review, 87, 272-300.

Duncan, J., & Humphreys, G. W. (1989). Visual search and stimulus similarity. Psychological Review, 96, 433-458.

Fisher, D. L. (1982). Limited-channel models of automatic detection: Capacity and scanning in visual search. Psychological Review, 89, 662-692.

Fisher, D. L., Duffy, S. A., Young, C., & Pollatsek, A. (1988). Understanding the central processing limit in consistent-mapping visual search tasks. Journal of Experimental Psychology: Human Perception and Performance, 14, 253-266.

Huang, L., & Pashler, H. (2005). Attention capacity and task difficulty in visual search. Cognition, 94, 101-111.

Jiang, Y., & Chun, M. M. (2001). Selective attention modulates implicit learning. Quarterly Journal of Experimental Psychology, 54, 1105- 1124.

Lavie, N. (1995). Perceptual load as a necessary condition for selective attention. Journal of Experimental Psychology: Human Perception and Performance, 21, 451-468.

Lavie, N., & DeFockert, J. W. (2003). Contrasting effects of sensory limits and capacity limits in visual selective attention. Perception & Psychophysics, 65, 202-212.

Lavie, N., Hirst, A., DeFockert, J. W., & Essi, V. (2004). Load theory of selective attention and cogntivie control. Journal of Experimental Psychology: Human Perception and Performance, 133, 339-354.

10.

Palmer, J. (1994). Set-size effects in visual search: The effect of attention is independent of the stimulus for simple tasks. Vision Research, 13, 1703-1721.

11.

Shaw, M. L. (1982). Attending to multiple sources of information. Cognitive Psychology, 14, 353- 409.

12.

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

바로가기메뉴

논문 상세

Vol.27 No.3

자극 개수와 해상도가 시각탐색의 부하효과에 미치는 영향

Distinct load effects by set-size and target-distractor similarity in visual search

Abstract

참고문헌

한국심리학회지: 인지 및 생물