An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration
Despite having equal duration, stimuli in physical motion are perceived to last longer than static ones. Here, we investigate whether illusory motion stimuli produce a time-dilation effect similar to physical motion. Participants performed a duration discrimination task that compared the perceived d...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Vision |
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| Online Access: | https://www.mdpi.com/2411-5150/7/3/61 |
| _version_ | 1797576377805832192 |
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| author | Giulio Contemori Giulia Meneghini Luca Battaglini |
| author_facet | Giulio Contemori Giulia Meneghini Luca Battaglini |
| author_sort | Giulio Contemori |
| collection | DOAJ |
| description | Despite having equal duration, stimuli in physical motion are perceived to last longer than static ones. Here, we investigate whether illusory motion stimuli produce a time-dilation effect similar to physical motion. Participants performed a duration discrimination task that compared the perceived duration of static stimuli with and without illusory motion to a reference stimulus. In the first experiment, we observed a 4% increase in the number of “longer” responses for the illusory motion images than static stimuli with equal duration. The time-dilation effect, quantified as a shift in the Point of Subjective Equality (PSE), was approximately 55 ms for a 2-second stimulus. Although small, the effect was replicated in a second experiment in which the total number of standard-duration repetitions was reduced from 73 to 19. In the third experiment, we found a positive linear trend between the strength of the illusory motion and the magnitude of the time-dilation effect. These results demonstrate that, similar to physical motion stimuli, illusory motion stimuli are perceived to last longer than static stimuli. Furthermore, the strength of the illusion influences the extent of the lengthening of perceived duration. |
| first_indexed | 2024-03-10T21:51:19Z |
| format | Article |
| id | doaj.art-395f3bee2764441f9b9395614569a661 |
| institution | Directory Open Access Journal |
| issn | 2411-5150 |
| language | English |
| last_indexed | 2024-03-10T21:51:19Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Vision |
| spelling | doaj.art-395f3bee2764441f9b9395614569a6612023-11-19T13:24:32ZengMDPI AGVision2411-51502023-09-01736110.3390/vision7030061An Illusory Motion in Stationary Stimuli Alters Their Perceived DurationGiulio Contemori0Giulia Meneghini1Luca Battaglini2Department of General Psychology, University of Padova, Via Venezia 8, 35131 Padova, ItalyPadova Neuroscience Center, University of Padova, 35131 Padova, ItalyDepartment of General Psychology, University of Padova, Via Venezia 8, 35131 Padova, ItalyDespite having equal duration, stimuli in physical motion are perceived to last longer than static ones. Here, we investigate whether illusory motion stimuli produce a time-dilation effect similar to physical motion. Participants performed a duration discrimination task that compared the perceived duration of static stimuli with and without illusory motion to a reference stimulus. In the first experiment, we observed a 4% increase in the number of “longer” responses for the illusory motion images than static stimuli with equal duration. The time-dilation effect, quantified as a shift in the Point of Subjective Equality (PSE), was approximately 55 ms for a 2-second stimulus. Although small, the effect was replicated in a second experiment in which the total number of standard-duration repetitions was reduced from 73 to 19. In the third experiment, we found a positive linear trend between the strength of the illusory motion and the magnitude of the time-dilation effect. These results demonstrate that, similar to physical motion stimuli, illusory motion stimuli are perceived to last longer than static stimuli. Furthermore, the strength of the illusion influences the extent of the lengthening of perceived duration.https://www.mdpi.com/2411-5150/7/3/61illusionvisiontimeperceptiondiscriminationmovement |
| spellingShingle | Giulio Contemori Giulia Meneghini Luca Battaglini An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration Vision illusion vision time perception discrimination movement |
| title | An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration |
| title_full | An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration |
| title_fullStr | An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration |
| title_full_unstemmed | An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration |
| title_short | An Illusory Motion in Stationary Stimuli Alters Their Perceived Duration |
| title_sort | illusory motion in stationary stimuli alters their perceived duration |
| topic | illusion vision time perception discrimination movement |
| url | https://www.mdpi.com/2411-5150/7/3/61 |
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