Local and global orientation in visual search

Six experiments investigated the role of global (shape) and local (contour) orientation in visual search for an orientation target. Experiment 1 demonstrated thatsearch for a conjunction of local contours with a distinct global orientation was less efficient than search for a target featurally distinct in terms of both global and local contour orientation. However, Experiments 2 and 4 demonstrated that the presence of a unique line contour was neither sufficient nor necessary to allow efficient search. Experiment 5 found thatsearch for a local orientation difference was strongly impeded by irrelevant variation in global orientation, arguing for a preeminent role for global orientation. Finally, Experiment 6 demonstrated that the orientation search asymmetry holds for the global orientation of stimuli. Taken together, the results are consistent with visual search processes guided predominately by a representation of global orientation.

[1]  A. Treisman,et al.  Conjunction search revisited. , 1990, Journal of experimental psychology. Human perception and performance.

[2]  W. D. Ross,et al.  A Neural Theory of Attentive Visual Search : Interactions of Boundary , Surface , Spatial , and Object Representations By : Stephen Grossberg , 2004 .

[3]  J. Bergen,et al.  A four mechanism model for threshold spatial vision , 1979, Vision Research.

[4]  A Treisman,et al.  Feature analysis in early vision: evidence from search asymmetries. , 1988, Psychological review.

[5]  Maryanne Martin.  Local and global processing: The role of sparsity , 1979 .

[6]  J. Wolfe,et al.  Limitations on the Parallel Guidance of Visual Search : Color x Color and Orientation x Orientation Conjuctions , 2004 .

[7]  P. Cavanagh,et al.  Effect of surface medium on visual search for orientation and size features. , 1990, Journal of experimental psychology. Human perception and performance.

[8]  J. Wolfe,et al.  The order of visual processing: “Top-down,” “bottom-up,” or “middle-out” , 1979, Perception & psychophysics.

[9]  H. Nothdurft.  Feature analysis and the role of similarity in preattentive vision , 1992, Perception & psychophysics.

[10]  J Saarinen,et al.  Visual Search for Global and Local Stimulus Features , 1994, Perception.

[11]  Ronald A. Rensink,et al.  Preattentive recovery of three-dimensional orientation from line drawings. , 1991, Psychological review.

[12]  J. Baird,et al.  Global precedence in visual pattern recognition , 1984, Perception & psychophysics.

[13]  James T. Enns,et al.  Preemption effects in visual search: evidence for low-level grouping. , 1995 .

[14]  R. Watt.  Scanning from coarse to fine spatial scales in the human visual system after the onset of a stimulus. , 1987, Journal of the Optical Society of America. A, Optics and image science.

[15]  D. Foster,et al.  Asymmetries in oriented-line detection indicate two orthogonal filters in early vision , 1991, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[16]  S Grossberg,et al.  3-D vision and figure-ground separation by visual cortex , 2010, Perception & psychophysics.

[17]  G W Humphreys,et al.  Grouping processes in visual search: effects with single- and combined-feature targets. , 1989, Journal of experimental psychology. General.

[18]  D. Watt.  Visual Processing: Computational Psychophysical and Cognitive Research , 1990 .

[19]  R Kimchi,et al.  The Role of Wholistic/Configural Properties versus Global Properties in Visual Form Perception , 1994, Perception.

[20]  J. Duncan,et al.  Visual search and stimulus similarity. , 1989, Psychological review.

[21]  J. Wolfe,et al.  Guided Search 2.0 A revised model of visual search , 1994, Psychonomic bulletin & review.

[22]  D. Navon.  Forest before trees: The precedence of global features in visual perception , 1977, Cognitive Psychology.

[23]  H. C. Nothdurft,et al.  Texture segmentation and pop-out from orientation contrast , 1991, Vision Research.

[24]  M. Bravo,et al.  Preattentive Vision and Perceptual Groups , 1990, Perception.