The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods.
As time plays a fundamental role in our social activities, scholars have studied temporal perception since the earliest days of experimental psychology. Since the 1960s, the ubiquity of color has been driving research on the potential effects of the colors red and blue on temporal perception and on...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2022-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0270110 |
| _version_ | 1818191481700089856 |
|---|---|
| author | Yuya Kinzuka Fumiaki Sato Tetsuto Minami Shigeki Nakauchi |
| author_facet | Yuya Kinzuka Fumiaki Sato Tetsuto Minami Shigeki Nakauchi |
| author_sort | Yuya Kinzuka |
| collection | DOAJ |
| description | As time plays a fundamental role in our social activities, scholars have studied temporal perception since the earliest days of experimental psychology. Since the 1960s, the ubiquity of color has been driving research on the potential effects of the colors red and blue on temporal perception and on its underlying mechanism. However, the results have been inconsistent, which could be attributed to the difficulty of controlling physical properties such as hue and luminance within and between studies. Therefore, we conducted a two-interval duration-discrimination task to evaluate the perceived duration of color stimuli under different equiluminant conditions: subjective or pupillary light reflex (PLR)-based equiluminance. The results, based on psychometric functional analyses and simultaneous pupillary recordings, showed that the perceived duration of red was overestimated compared with blue even when the intensity of the stimulus was controlled based on subjective equiluminance (Experiment 1). However, since blue is known to induce a larger PLR than red despite equiluminance, we conducted a controlled study to distinguish the indirect effect of pupillary response to temporal perception. Interestingly, the effect observed in Experiment 1 faded when the luminance levels of the two stimuli were matched based on PLR response (Experiment 2). These results indicate that duration judgement can be affected not only by the hue but also by different equiluminance methods. Furthermore, this causality between the equiluminance method and temporal perception can be explained by the fluctuations in incident light entering the pupil. |
| first_indexed | 2024-12-12T00:15:18Z |
| format | Article |
| id | doaj.art-e2c594ba106d49b7a0ac69a03e2d6261 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-12T00:15:18Z |
| publishDate | 2022-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-e2c594ba106d49b7a0ac69a03e2d62612022-12-22T00:44:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01176e027011010.1371/journal.pone.0270110The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods.Yuya KinzukaFumiaki SatoTetsuto MinamiShigeki NakauchiAs time plays a fundamental role in our social activities, scholars have studied temporal perception since the earliest days of experimental psychology. Since the 1960s, the ubiquity of color has been driving research on the potential effects of the colors red and blue on temporal perception and on its underlying mechanism. However, the results have been inconsistent, which could be attributed to the difficulty of controlling physical properties such as hue and luminance within and between studies. Therefore, we conducted a two-interval duration-discrimination task to evaluate the perceived duration of color stimuli under different equiluminant conditions: subjective or pupillary light reflex (PLR)-based equiluminance. The results, based on psychometric functional analyses and simultaneous pupillary recordings, showed that the perceived duration of red was overestimated compared with blue even when the intensity of the stimulus was controlled based on subjective equiluminance (Experiment 1). However, since blue is known to induce a larger PLR than red despite equiluminance, we conducted a controlled study to distinguish the indirect effect of pupillary response to temporal perception. Interestingly, the effect observed in Experiment 1 faded when the luminance levels of the two stimuli were matched based on PLR response (Experiment 2). These results indicate that duration judgement can be affected not only by the hue but also by different equiluminance methods. Furthermore, this causality between the equiluminance method and temporal perception can be explained by the fluctuations in incident light entering the pupil.https://doi.org/10.1371/journal.pone.0270110 |
| spellingShingle | Yuya Kinzuka Fumiaki Sato Tetsuto Minami Shigeki Nakauchi The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. PLoS ONE |
| title | The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. |
| title_full | The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. |
| title_fullStr | The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. |
| title_full_unstemmed | The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. |
| title_short | The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods. |
| title_sort | effect of red blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods |
| url | https://doi.org/10.1371/journal.pone.0270110 |
| work_keys_str_mv | AT yuyakinzuka theeffectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT fumiakisato theeffectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT tetsutominami theeffectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT shigekinakauchi theeffectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT yuyakinzuka effectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT fumiakisato effectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT tetsutominami effectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods AT shigekinakauchi effectofredbluecolorstimuliontemporalperceptionunderdifferentpupillaryresponsesinducedbydifferentequiluminantmethods |