Facilitation by exogenous attention for static and dynamic gestalt groups
Attentional mechanisms allow the brain to selectively allocate its resources to stimuli of interest within the huge amount of information reaching its sensory systems. The voluntary component of attention, endogenous attention, can be allocated in a flexible manner depending on the goals and strategies of the observer. On the other hand, the reflexive component, exogenous attention, is driven by the stimulus. Here, we investigated how exogenous attention is deployed to moving stimuli that form distinct perceptual groups. We showed that exogenous attention is deployed according to a reference frame that moves along with the stimulus. Moreover, in addition to the cued stimulus, exogenous attention is deployed to all elements forming a perceptual group. These properties provide a basis for the efficient deployment of exogenous attention under ecological viewing conditions.
KeywordsObject-based attention Space-based attention Attentional capture
The first experiment was conducted as part of H.H.’s summer undergraduate research project and was supported in part by the University of Houston Summer Undergraduate Research Fellowship (SURF) program. The results of the first experiment were presented at the University of Houston 2011 SURF Conference.
- Gillebert, C. R., & Humphreys, G. W. (2014). Mutual interplay between perceptual organization and attention: A neuropsychological perspective. In J. Wagemans (Ed.), Oxford handbook of perceptual organization. Oxford, UK: Oxford University Press.Google Scholar
- Jonides, J. (1981). Voluntary vs. Automatic control over the mind’s eye’s movement. In J. Long & A. Baddeley (Eds.), Attention and performance IX (pp. 187–203). Hillsdale: Erlbaum.Google Scholar
- Koffka, K. (1922). Principles of gestalt psychology. New York: Harcourt, Brace & World, Inc.Google Scholar
- Marr, D. (1982). Vision: A computational investigation into the human representation and processing of visual information. San Francisco, CA: Freeman.Google Scholar
- Peterson, M. A., Gerhardstein, P. C., Mennemeier, M., & Rapcsak, S. Z. (1998). Object-centered attentional biases and object recognition contributions to scene segmentation in left- and right-hemisphere-damaged patients. Psychobiology, 26, 357–370.Google Scholar
- Pinna, B. (2014). What is a perceptual object? Beyond the Gestalt theory of perceptual organization. In A. Geremek, M. W. Greenlee, & S. Magnussen (Eds.), Perception beyond gestalt: Progress in vision research (pp. 48–66). Hove, UK: Psychology Press.Google Scholar
- Wagemans, J., Elder, J. H., Kubovy, M., Palmer, S. E., Peterson, M. A., Singh, M., & von der Heydt, R. (2012). A century of Gestalt psychology in visual perception: I. Perceptual grouping and figure–ground organization. Psychological Bulletin, 138, 1172–1217. doi: 10.1037/a0029333 PubMedCentralPubMedCrossRefGoogle Scholar
- Wertheimer, M. (1923). Laws of organization in perceptual forms. In: W. A. Ellis (Ed.), Sourcebook of gestalt psychology (pp. 71–88). London: Routledge & Kegan Paul.Google Scholar