scholarly journals Flexible viewing time when estimating time-to-contact in 3D parabolic trajectories

2021 ◽  
Vol 21 (4) ◽  
pp. 9
Author(s):  
Borja Aguado ◽  
Joan López-Moliner
Keyword(s):  
2019 ◽  
Author(s):  
Joy Lu ◽  
Uma Karmarkar ◽  
Vinod Venkatraman
Keyword(s):  

Author(s):  
Ellen Szubski M.S. ◽  
Savana King ◽  
Rick Tyrrell Ph.D.

Author(s):  
Jet Gabrielle Sanders ◽  
Yoshiyuki Ueda ◽  
Sakiko Yoshikawa ◽  
Rob Jenkins

Abstract Background Recent experimental work has shown that hyper-realistic face masks can pass for real faces during live viewing. However, live viewing embeds the perceptual task (mask detection) in a powerful social context that may influence respondents’ behaviour. To remove this social context, we assessed viewers’ ability to distinguish photos of hyper-realistic masks from photos of real faces in a computerised two-alternative forced choice (2AFC) procedure. Results In experiment 1 (N = 120), we observed an error rate of 33% when viewing time was restricted to 500 ms. In experiment 2 (N = 120), we observed an error rate of 20% when viewing time was unlimited. In both experiments we saw a significant performance cost for other-race comparisons relative to own-race comparisons. Conclusions We conclude that viewers could not reliably distinguish hyper-realistic face masks from real faces in photographic presentations. As well as its theoretical interest, failure to detect synthetic faces has important implications for security and crime prevention, which often rely on facial appearance and personal identity being related.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 311-312
Author(s):  
Katie Sakel ◽  
Joshua Grubbs

Abstract The increase of exposure to online pornography has decreased the age of initial exposure to pornography. However, very little is known about the outcomes resulting from increased pornography exposure in the Baby Boomer generation and beyond. The current study asked what predictors were significant in individuals born in 1965 and earlier when predicting the perceived pornography viewing time for the average man and woman. To answer this question, a nationally representative population (N = 1073, 510 males) completed a web-based survey measuring the age of the participant, gender of the participant, self-directed sexual behaviors (“How frequently have you masturbated while viewing pornography alone?”), partner-directed sexual behaviors (“How frequently have you viewed pornography with a partner?”), a religiosity index (“How important is your religion?”), and the predicted perceived time that a woman and man watches pornography, Results showed that perceived time that the average man spent viewing pornography was significantly predicted by age of the participant, gender of the participant, self-motivated sexual behaviors and partner-motivated sexual behaviors. Religiosity was not a significant predictor. In the regression predicting perceived time that the average woman viewed pornography were age of the participant, self-motivated sexual behaviors, and partner-motivated sexual behaviors. Gender of the participant and religiosity of the participant were not significant predictors. Further research should expand this work to a lifespan perspective and longitudinal studies.


1974 ◽  
Vol 38 (2) ◽  
pp. 511-517 ◽  
Author(s):  
Robert A. Rogers ◽  
Raymond E. Sanders

Based on the Gardner, et al. (1959) interpretation of the leveling-sharpening dimension, order of presentation and length of viewing time were manipulated on a size-estimation task. Contrary to expectation, neither variable significantly affected performance, and four different subject-estimation patterns were isolated rather than the two patterns (leveling and sharpening) expected. Both magnitude and directional properties of the four estimation patterns were explained by a modified version of Parducci's range-frequency model.


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