This study investigated to what extent rod-dominated vision affects motion and form perception accuracy. Twenty-nine healthy subjects took part in the experiment. Form coherence (FC), form-from-motion (FFM) and motion coherence (MC) tests were assessed in low-light (rod-dominated vision) and high-light (cone-dominated vision) conditions. For each test we determined the accuracy by evaluating the correct detection obtained in five levels of coherence (corresponding to different signal-to-noise ratio). The results evidenced that motion, form and form-from-motion accuracy decreased in low-light condition. Furthermore, light condition effect was differently mediated by noise according to the type of task. The motion perception is affected only at high noise levels, while form discrimination was globally affected at all the levels, also in absence of noise, both for static (FC) and dynamic stimuli (FFM). We conclude that in rod-dominated vision form-from-motion perception is more defected than form and motion perception. We hypothesized that our results are due to the integration between M and P cells in FFM test increases the form perception accuracy in high-light condition but this advantage is completely lost during low-light condition, when the rods need to integrate information both from M and P cells.
Published in | American Journal of Applied Psychology (Volume 6, Issue 6) |
DOI | 10.11648/j.ajap.20170606.14 |
Page(s) | 158-165 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Low-Light Level, Form Perception, Form-from-Motion Perception, Motion Perception, Coherence
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APA Style
Giovagnoli Sara, Pansell Tony, Bolzani Roberto, Hellgren Kerstin, Benassi Mariagrazia. (2017). The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception. American Journal of Applied Psychology, 6(6), 158-165. https://doi.org/10.11648/j.ajap.20170606.14
ACS Style
Giovagnoli Sara; Pansell Tony; Bolzani Roberto; Hellgren Kerstin; Benassi Mariagrazia. The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception. Am. J. Appl. Psychol. 2017, 6(6), 158-165. doi: 10.11648/j.ajap.20170606.14
AMA Style
Giovagnoli Sara, Pansell Tony, Bolzani Roberto, Hellgren Kerstin, Benassi Mariagrazia. The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception. Am J Appl Psychol. 2017;6(6):158-165. doi: 10.11648/j.ajap.20170606.14
@article{10.11648/j.ajap.20170606.14, author = {Giovagnoli Sara and Pansell Tony and Bolzani Roberto and Hellgren Kerstin and Benassi Mariagrazia}, title = {The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception}, journal = {American Journal of Applied Psychology}, volume = {6}, number = {6}, pages = {158-165}, doi = {10.11648/j.ajap.20170606.14}, url = {https://doi.org/10.11648/j.ajap.20170606.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajap.20170606.14}, abstract = {This study investigated to what extent rod-dominated vision affects motion and form perception accuracy. Twenty-nine healthy subjects took part in the experiment. Form coherence (FC), form-from-motion (FFM) and motion coherence (MC) tests were assessed in low-light (rod-dominated vision) and high-light (cone-dominated vision) conditions. For each test we determined the accuracy by evaluating the correct detection obtained in five levels of coherence (corresponding to different signal-to-noise ratio). The results evidenced that motion, form and form-from-motion accuracy decreased in low-light condition. Furthermore, light condition effect was differently mediated by noise according to the type of task. The motion perception is affected only at high noise levels, while form discrimination was globally affected at all the levels, also in absence of noise, both for static (FC) and dynamic stimuli (FFM). We conclude that in rod-dominated vision form-from-motion perception is more defected than form and motion perception. We hypothesized that our results are due to the integration between M and P cells in FFM test increases the form perception accuracy in high-light condition but this advantage is completely lost during low-light condition, when the rods need to integrate information both from M and P cells.}, year = {2017} }
TY - JOUR T1 - The Effect of Luminance Condition on Form, Form-from-Motion and Motion Perception AU - Giovagnoli Sara AU - Pansell Tony AU - Bolzani Roberto AU - Hellgren Kerstin AU - Benassi Mariagrazia Y1 - 2017/11/08 PY - 2017 N1 - https://doi.org/10.11648/j.ajap.20170606.14 DO - 10.11648/j.ajap.20170606.14 T2 - American Journal of Applied Psychology JF - American Journal of Applied Psychology JO - American Journal of Applied Psychology SP - 158 EP - 165 PB - Science Publishing Group SN - 2328-5672 UR - https://doi.org/10.11648/j.ajap.20170606.14 AB - This study investigated to what extent rod-dominated vision affects motion and form perception accuracy. Twenty-nine healthy subjects took part in the experiment. Form coherence (FC), form-from-motion (FFM) and motion coherence (MC) tests were assessed in low-light (rod-dominated vision) and high-light (cone-dominated vision) conditions. For each test we determined the accuracy by evaluating the correct detection obtained in five levels of coherence (corresponding to different signal-to-noise ratio). The results evidenced that motion, form and form-from-motion accuracy decreased in low-light condition. Furthermore, light condition effect was differently mediated by noise according to the type of task. The motion perception is affected only at high noise levels, while form discrimination was globally affected at all the levels, also in absence of noise, both for static (FC) and dynamic stimuli (FFM). We conclude that in rod-dominated vision form-from-motion perception is more defected than form and motion perception. We hypothesized that our results are due to the integration between M and P cells in FFM test increases the form perception accuracy in high-light condition but this advantage is completely lost during low-light condition, when the rods need to integrate information both from M and P cells. VL - 6 IS - 6 ER -