Watson, Derrick G. and Maylor, Elizabeth A.. (2006) Effects of color heterogeneity on subitization. Perception & Psychophysics, Vol.68 (No.2). pp. 319-326. ISSN 0031-5117

Full text not available from this repository.

Abstract

Small numbers of items can be enumerated rapidly and accurately via a process termed subitizing. In two experiments, we examined the effect of target color heterogeneity on subitizing efficiency. In contrast to the findings of Puts and de Weert (1997), we found that observers were no less efficient at subitizing displays containing red and green items than they were at subitizing displays of a single color. We propose that these findings are consistent with subitization operating on items represented within a location master map that codes where objects are but not what they are. The data are discussed in relation to recent findings concerning the detection of single-feature targets and the functional architecture of early visual processing.

Item Type:	Journal Article
Subjects:	B Philosophy. Psychology. Religion > BF Psychology
Divisions:	Faculty of Science > Psychology
Library of Congress Subject Headings (LCSH):	Visual perception, Color — Physiological effect, Color — Psychological aspects, Psychophysiology
Journal or Publication Title:	Perception & Psychophysics
Publisher:	Psychonomic Society
ISSN:	0031-5117
Date:	February 2006
Volume:	Vol.68
Number:	No.2
Number of Pages:	8
Page Range:	pp. 319-326
Identification Number:	10.3758/BF03193679
Status:	Peer Reviewed
Publication Status:	Published
Funder:	Economic and Social Research Council (Great Britain) (ESRC)
Grant number:	R000239180 (ESRC)
References:	Atkinson, J., Campbell, F. W., & Francis, M. R. (1976). The magic number 4+0: A new look at visual numerosity judgements. Perception, 5, 327-334. Found, A., & Müller, H. J. (1996). Searching for unknown feature targets on more than one dimension: Investigating a “dimensionweighting” account. Perception & Psychophysics, 58, 88-101. Frick, R. W. (1987). The homogeneity effect in counting. Perception & Psychophysics, 41, 8-16. Hunter, W. S., & Sigler, M. (1940). The span of visual discrimination as a function of time and intensity of stimulation. Journal of Experimental Psychology, 26, 160-179. Intriligator, J., & Cavanagh, P. (1997). Individuation and the resolution of attention [Abstract]. Investigative Ophthalmology & Visual Science, 38, 3209. Kaufman, E. L., Lord, M. W., Reese, T. W., & Volkman, J. (1949). The discrimination of visual number. American Journal of Psychology, 62, 498-525. Maljkovic, V., & Nakayama, K. (1994). Priming of pop-out: I. Role of features. Memory & Cognition, 22, 657-672. Maljkovic, V., & Nakayama, K. (1996). Priming of pop-out: II. The role of position. Perception & Psychophysics, 58, 977-991. Mandler, G., & Shebo, B. J. (1982). Subitizing: An analysis of its component processes. Journal of Experimental Psychology: General, 111, 1-22. Müller, H. J., Heller, D., & Ziegler, J. (1995). Visual search for singleton feature targets within and across feature dimensions. Perception & Psychophysics, 57, 1-17. Puts, M. J. H., & de Weert, C. M. M. (1997). Does color influence subitization? Acta Psychologica, 97, 71-78. Pylyshyn, Z. W. (1989). The role of location indexes in spatial perception: A sketch of the FINST spatial-index model. Cognition, 32, 65-97. Pylyshyn, Z. W. (2000). Situating vision in the world. Trends in Cognitive Sciences, 4, 197-207. Pylyshyn, Z. W. (2001). Visual indexes, preconceptual objects, and situated vision. Cognition, 80, 127-158. Pylyshyn, Z. W., & Storm, R. W. (1988). Tracking multiple independent targets: Evidence for a parallel tracking mechanism. Spatial Vision, 3, 179-197. Randall, G. (1998). The temporal binding of visual features and their role in enumeration. Unpublished doctoral thesis, University of Birmingham, U.K. Rastle, K., & Davis, M. H. (2002). On the complexities of measuring naming. Journal of Experimental Psychology: Human Perception & Performance, 28, 307-314. Svenson, O., & Sjöberg, K. (1983). Speeds of subitizing and counting processes in different age groups. Journal of Genetic Psychology, 142, 203-211. Treisman, A. [M.] (1988). Features and objects: The Fourteenth Bartlett Memorial Lecture. Quarterly Journal of Experimental Psychology, 40A, 201-237. Treisman, A. M., & Gelade, G. (1980). A feature-integration theory of attention. Cognitive Psychology, 12, 97-136. Treisman, A. [M.], & Sato, S. (1990). Conjunction search revisited. Journal of Experimental Psychology: Human Perception & Performance, 16, 459-478. Trick, L. M., & Enns, J. T. (1997). Clusters precede shapes in perceptual organization. Psychological Science, 8, 124-129. Trick, L. M., & Pylyshyn, Z. W. (1993). What enumeration studies can show us about spatial attention: Evidence for limited capacity preattentive processing. Journal of Experimental Psychology: Human Perception & Performance, 19, 331-351. Trick, L. M., & Pylyshyn, Z. W. (1994). Why are small and large numbers enumerated differently? A limited-capacity preattentive stage in vision. Psychological Review, 101, 80-102. Watson, D. G., & Humphreys, G. W. (1998). Visual marking of moving objects: A role for top-down feature-based inhibition in selection. Journal of Experimental Psychology: Human Perception & Performance, 24, 946-962. Watson, D. G., & Humphreys, G. W. (1999). The magic number four and temporo-parietal damage: Neurological impairments in counting targets amongst distractors. Cognitive Neuropsychology, 16, 609- 629. Watson, D. G., Maylor, E. A., & Bruce, L. A. M. (2005a). Effects of age on searching for and enumerating targets that cannot be detected efficiently. Quarterly Journal of Experimental Psychology, 58A, 1119-1142. Watson, D. G., Maylor, E. A., & Bruce, L. A. M. (2005b). The efficiency of feature-based subitization and counting. Journal of Experimental Psychology: Human Perception & Performance, 31, 1449-1462. Watson, D. G., Maylor, E. A., & Manson, N. J. (2002). Aging and enumeration: A selective deficit for the subitization of targets among distractors. Psychology & Aging, 17, 496-504. Wolfe, J. M. (1994). Guided Search 2.0: A revised model of visual search. Psychonomic Bulletin & Review, 1, 202-238. Wolfe, J. M., Butcher, S. J., Lee, C., & Hyle, M. (2003). Changing your mind: On the contributions of top-down and bottom-up guidance in visual search for feature singletons. Journal of Experimental Psychology: Human Perception & Performance, 29, 483-502. Wolfe, J. M., Cave, K. R., & Franzel, S. L. (1989). Guided search: An alternative to the feature integration model for visual search. Journal of Experimental Psychology: Human Perception & Performance, 15, 419-433.
URI:	http://wrap.warwick.ac.uk/id/eprint/33495

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item