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Visual search asymmetry for angular figures

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Authors
Marković, Slobodan
Blanuša, Jelena
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Abstract
The well-described phenomenon of preference for curved shapes could be explained by the fluency hypothesis, which states that curvature enables their fluent processing in the visual field. According to this hypothesis, curved figures should be faster recognized among angular, while the opposite would not be the case. In order to test the fluency hypothesis, we used a classical visual search task, with two types of the target (curved and angular), three set sizes (1, 6, 12 elements), and two set types (positive and negative). In addition, we made three experimental designs: (1) classical, where the complexity of curved and angular figures was not controlled, (2) matched, where curved and angular figures were matched by the number of changes in shape, and (3) symmetrical, consisting curved and angular figures balanced by participants’ subjective ratings of complexity. Reaction time was recorded. 31 participants took part in the experiment. The results of Generalized estim...ating equations analysis revealed search asymmetry for curved stimulus in classical design (Wald χ2(1)=14.96; p<.001), while the angular figure is faster recognized in both matched (Wald χ2(1)=9.54; p<.01) and symmetrical design (Wald χ2(1) 218 Perception 50(1S) =86.66; p<.001). This difference was particularly noticeable in negative and large sets. Our results indicate that the hypothesis of fluency could be rejected when curved and angular stimuli are equally complex, and that angularity should be considered as a basic stimuli feature which pops out in the visual field.

Keywords:
visual perception / visual search task / asymmetry / angular figures
Source:
Perception (Supplement), 2021, 50, 218-219

DOI: doi:10.1177/03010066211059887

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URI
http://reff.f.bg.ac.rs/handle/123456789/4521
Collections
  • Radovi istraživača / Researcher's publications - Odeljenje za psihologiju
Institution/Community
Psihologija / Psychology
TY  - CONF
AU  - Marković, Slobodan
AU  - Blanuša, Jelena
PY  - 2021
UR  - http://reff.f.bg.ac.rs/handle/123456789/4521
AB  - The well-described phenomenon of preference for curved
shapes could be explained by the fluency hypothesis, which
states that curvature enables their fluent processing in the
visual field. According to this hypothesis, curved figures
should be faster recognized among angular, while the opposite
would not be the case. In order to test the fluency
hypothesis, we used a classical visual search task, with two
types of the target (curved and angular), three set sizes (1,
6, 12 elements), and two set types (positive and negative).
In addition, we made three experimental designs: (1) classical,
where the complexity of curved and angular figures
was not controlled, (2) matched, where curved and angular
figures were matched by the number of changes in shape,
and (3) symmetrical, consisting curved and angular figures
balanced by participants’ subjective ratings of complexity.
Reaction time was recorded. 31 participants took part in
the experiment. The results of Generalized estimating equations
analysis revealed search asymmetry for curved stimulus
in classical design (Wald χ2(1)=14.96; p<.001), while the
angular figure is faster recognized in both matched (Wald
χ2(1)=9.54; p<.01) and symmetrical design (Wald χ2(1)
218 Perception 50(1S)
=86.66; p<.001). This difference was particularly noticeable
in negative and large sets. Our results indicate that the
hypothesis of fluency could be rejected when curved and
angular stimuli are equally complex, and that angularity
should be considered as a basic stimuli feature which pops
out in the visual field.
C3  - Perception (Supplement)
T1  - Visual search asymmetry for angular figures
VL  - 50, 218-219
DO  - doi:10.1177/03010066211059887
ER  - 
@conference{
author = "Marković, Slobodan and Blanuša, Jelena",
year = "2021",
abstract = "The well-described phenomenon of preference for curved
shapes could be explained by the fluency hypothesis, which
states that curvature enables their fluent processing in the
visual field. According to this hypothesis, curved figures
should be faster recognized among angular, while the opposite
would not be the case. In order to test the fluency
hypothesis, we used a classical visual search task, with two
types of the target (curved and angular), three set sizes (1,
6, 12 elements), and two set types (positive and negative).
In addition, we made three experimental designs: (1) classical,
where the complexity of curved and angular figures
was not controlled, (2) matched, where curved and angular
figures were matched by the number of changes in shape,
and (3) symmetrical, consisting curved and angular figures
balanced by participants’ subjective ratings of complexity.
Reaction time was recorded. 31 participants took part in
the experiment. The results of Generalized estimating equations
analysis revealed search asymmetry for curved stimulus
in classical design (Wald χ2(1)=14.96; p<.001), while the
angular figure is faster recognized in both matched (Wald
χ2(1)=9.54; p<.01) and symmetrical design (Wald χ2(1)
218 Perception 50(1S)
=86.66; p<.001). This difference was particularly noticeable
in negative and large sets. Our results indicate that the
hypothesis of fluency could be rejected when curved and
angular stimuli are equally complex, and that angularity
should be considered as a basic stimuli feature which pops
out in the visual field.",
journal = "Perception (Supplement)",
title = "Visual search asymmetry for angular figures",
volume = "50, 218-219",
doi = "doi:10.1177/03010066211059887"
}
Marković, S.,& Blanuša, J.. (2021). Visual search asymmetry for angular figures. in Perception (Supplement), 50, 218-219.
https://doi.org/doi:10.1177/03010066211059887
Marković S, Blanuša J. Visual search asymmetry for angular figures. in Perception (Supplement). 2021;50, 218-219.
doi:doi:10.1177/03010066211059887 .
Marković, Slobodan, Blanuša, Jelena, "Visual search asymmetry for angular figures" in Perception (Supplement), 50, 218-219 (2021),
https://doi.org/doi:10.1177/03010066211059887 . .

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