scholarly journals The linear separability effect in color visual search: Ruling out the additive color hypothesis

1998 ◽  
Vol 60 (6) ◽  
pp. 1083-1093 ◽  
Author(s):  
Ben Bauer ◽  
Pierre Jolicoeur ◽  
William B. Cowan
Keyword(s):  
Visual Search ◽  
Linear Separability

Linear Separability and Visual Search

1994 ◽  
Author(s):  
Ben Bauer ◽  
Pierre Jolicoeur ◽  
William Cowan
Keyword(s):  
Visual Search ◽  
Linear Separability

scholarly journals Convex hull test of the linear separability hypothesis in visual search

1999 ◽  
Vol 39 (16) ◽  
pp. 2681-2695 ◽  
Author(s):  
Ben Bauer ◽  
Pierre Jolicœur ◽  
William B. Cowan
Keyword(s):  
Visual Search ◽  
Convex Hull ◽  
Linear Separability

scholarly journals Investigating Linear Separability in Visual Search for Orientation

2016 ◽  
Vol 16 (12) ◽  
pp. 1280
Author(s):  
Garry Kong ◽  
David Alais ◽  
Erik Van der Burg
Keyword(s):  
Visual Search ◽  
Linear Separability

Distractor Heterogeneity versus Linear Separability in Colour Visual Search

Perception ◽  
1996 ◽  
Vol 25 (11) ◽  
pp. 1281-1293 ◽  
Author(s):  
Ben Bauer ◽  
Pierre Jolicoeur ◽  
William B Cowan
Keyword(s):  
Visual Search ◽  
Search Display ◽  
Search Performance ◽  
Set Size ◽  
Linear Separability

D'Zmura, and Bauer, Jolicoeur, and Cowan demonstrated that a target whose chromaticity was linearly separable from distractor chromaticities was relatively easy to detect in a search display, whereas a target that was not linearly separable from the distractor chromaticities resulted in steep search slopes. This linear separability effect suggests that efficient colour visual search is mediated by a chromatically linear mechanism. Failure of this mechanism leads to search performance strongly influenced by number of search items (set size). In their studies, linear separability was confounded with distractor heterogeneity and thus the results attributed to linear separability were also consistent with the model of visual search proposed by Duncan and Humphreys in which search performance is determined in part by distractor heterogeneity. We contrasted the predictions based on linear separability and on the Duncan and Humphreys model by varying the ratios of the quantities of the two distractors and demonstrated the potent effects of linear separability in a design that deconfounded linear separability and distractor heterogeneity.

scholarly journals Re-examining the linear separability effect in visual search for oriented targets

2020 ◽  
Vol 20 (11) ◽  
pp. 1244
Author(s):  
Simona Buetti ◽  
Yujie Shao ◽  
Zoe Jing Xu ◽  
Alejandro Lleras
Keyword(s):  
Visual Search ◽  
Linear Separability

Linear separability and redundant colour coding in visual search displays

Displays ◽  
1997 ◽  
Vol 18 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Ben Bauer ◽  
Sharon McFadden
Keyword(s):  
Visual Search ◽  
Linear Separability ◽  
Colour Coding

The Influences of Goal and Laterality of a Prepared Hand Response on a Co-Occurring Visual Search

2015 ◽  
Vol 74 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Alexandre Coutté ◽  
Gérard Olivier ◽  
Sylvane Faure
Keyword(s):  
Visual Search ◽  
Visual Target ◽  
Motor Planning ◽  
Search Performance ◽  
Response Preparation ◽  
Manual Response ◽  
Response Hand ◽  
Computer Screen ◽  
Left Hand ◽  
Manual Interaction

Computer use generally requires manual interaction with human-computer interfaces. In this experiment, we studied the influence of manual response preparation on co-occurring shifts of attention to information on a computer screen. The participants were to carry out a visual search task on a computer screen while simultaneously preparing to reach for either a proximal or distal switch on a horizontal device, with either their right or left hand. The response properties were not predictive of the target’s spatial position. The results mainly showed that the preparation of a manual response influenced visual search: (1) The visual target whose location was congruent with the goal of the prepared response was found faster; (2) the visual target whose location was congruent with the laterality of the response hand was found faster; (3) these effects have a cumulative influence on visual search performance; (4) the magnitude of the influence of the response goal on visual search is marginally negatively correlated with the rapidity of response execution. These results are discussed in the general framework of structural coupling between perception and motor planning.

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