TY - JOUR
T1 - The Effect of Optical Flow Motion Direction on Vection Strength
AU - Fujii, Yoshitaka
AU - Seno, Takeharu
N1 - Funding Information:
The authors would like to thank Chihiro Hiramatsu, PhD, from Kyushu University for helpful advice and comments. The authors would also like to thank Adam Phillips, PhD, from Edanz Group for editing a draft of this manuscript. Part of this work was carried out under the Cooperative Research Project Program of the Research Institute of Electrical Communication at Tohoku University.
Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by MEXT KAKENHI (Grant numbers JP26700016, JP17K12869, and JP18H01100) the Advanced Research Program of Ritsumeikan University.
Publisher Copyright:
© The Author(s) 2020.
PY - 2020/1
Y1 - 2020/1
N2 - In some phenomena of visual perception, the motion direction of visual stimuli can affect perception. In particular, asymmetries between oblique directions and cardinal (horizontal and vertical) directions have been reported and are known as oblique effects (e.g., contrast sensitivity and motion threshold). In this study, we investigated how vection strength depends on motion direction. Participants observed random-dot optical flow in a circular field and rated the perceived vection strength. Dot movement was systematically controlled using the following angles: 0° (up), 30°, 45°, 60°, 90°, 120°, 135°, 150°, and 180° (down). We found that vection strength depended on motion direction and was weaker in the oblique directions than cardinal directions. Thus, the effect of motion direction on vection strength was variable, as seen in the shape of the oblique effect.
AB - In some phenomena of visual perception, the motion direction of visual stimuli can affect perception. In particular, asymmetries between oblique directions and cardinal (horizontal and vertical) directions have been reported and are known as oblique effects (e.g., contrast sensitivity and motion threshold). In this study, we investigated how vection strength depends on motion direction. Participants observed random-dot optical flow in a circular field and rated the perceived vection strength. Dot movement was systematically controlled using the following angles: 0° (up), 30°, 45°, 60°, 90°, 120°, 135°, 150°, and 180° (down). We found that vection strength depended on motion direction and was weaker in the oblique directions than cardinal directions. Thus, the effect of motion direction on vection strength was variable, as seen in the shape of the oblique effect.
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U2 - 10.1177/2041669519899108
DO - 10.1177/2041669519899108
M3 - Article
AN - SCOPUS:85077910805
SN - 2041-6695
VL - 11
JO - i-Perception
JF - i-Perception
IS - 1
ER -