Microsaccade rate varies with subjective visibility during motion-i= blindness
Motion-induced blindness (MIB) occurs when a dot embedded in a motion field subjectively vanishes. Here we report the first psychophysical data concerning effects of microsaccade/eyeblink rate upon perceptual switches during MIB. We find that the rate of microsaccades/eyeblink rises before and after...
| Κύριοι συγγραφείς: | , |
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| Άλλοι συγγραφείς: | |
| Μορφή: | Άρθρο |
| Γλώσσα: | en_US |
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Public Library of Science
2010
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| Διαθέσιμο Online: | http://hdl.handle.net/1721.1/52430 |
| _version_ | 1826206714848870400 |
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| author | Hsieh, Po-Jang Tse, Peter U. |
| author2 | McGovern Institute for Brain Research at MIT |
| author_facet | McGovern Institute for Brain Research at MIT Hsieh, Po-Jang Tse, Peter U. |
| author_sort | Hsieh, Po-Jang |
| collection | MIT |
| description | Motion-induced blindness (MIB) occurs when a dot embedded in a motion field subjectively vanishes. Here we report the first psychophysical data concerning effects of microsaccade/eyeblink rate upon perceptual switches during MIB. We find that the rate of microsaccades/eyeblink rises before and after perceptual transitions from not seeing to seeing the dot, and decreases before perceptual transitions from seeing it to not seeing it. In addition, event-related fMRI data reveal that, when a dot subjectively reappears during MIB, the blood oxygen-level dependent (BOLD) signal increases in V1v and V2v and decreases in contralateral hMT+. These BOLD signal changes observed upon perceptual state changes in MIB could be driven by the change of perceptual states and/or a confounding factor, such as the microsaccade/eyeblink rate. |
| first_indexed | 2024-09-23T13:37:09Z |
| format | Article |
| id | mit-1721.1/52430 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:37:09Z |
| publishDate | 2010 |
| publisher | Public Library of Science |
| record_format | dspace |
| spelling | mit-1721.1/524302022-09-28T15:05:30Z Microsaccade rate varies with subjective visibility during motion-i= blindness Hsieh, Po-Jang Tse, Peter U. McGovern Institute for Brain Research at MIT Hsieh, Po-Jang Hsieh, Po-Jang Motion-induced blindness (MIB) occurs when a dot embedded in a motion field subjectively vanishes. Here we report the first psychophysical data concerning effects of microsaccade/eyeblink rate upon perceptual switches during MIB. We find that the rate of microsaccades/eyeblink rises before and after perceptual transitions from not seeing to seeing the dot, and decreases before perceptual transitions from seeing it to not seeing it. In addition, event-related fMRI data reveal that, when a dot subjectively reappears during MIB, the blood oxygen-level dependent (BOLD) signal increases in V1v and V2v and decreases in contralateral hMT+. These BOLD signal changes observed upon perceptual state changes in MIB could be driven by the change of perceptual states and/or a confounding factor, such as the microsaccade/eyeblink rate. 2010-03-09T19:08:42Z 2010-03-09T19:08:42Z 2009-04 2008-11 Article http://purl.org/eprint/type/JournalArticle 1932-6203 http://hdl.handle.net/1721.1/52430 Hsieh P-J, Tse PU (2009) Microsaccade Rate Varies with Subjective Visibility during Motion-Induced Blindness. PLoS ONE 4(4): e5163. doi:10.1371/journal.pone.0005163 19357789 en_US http://dx.doi.org/10.1371/journal.pone.0005163 PLoS ONE Creative Commons Attribution http://creativecommons.org/licenses/by/2.5/ application/pdf Public Library of Science PLoS |
| spellingShingle | Hsieh, Po-Jang Tse, Peter U. Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title | Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title_full | Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title_fullStr | Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title_full_unstemmed | Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title_short | Microsaccade rate varies with subjective visibility during motion-i= blindness |
| title_sort | microsaccade rate varies with subjective visibility during motion i blindness |
| url | http://hdl.handle.net/1721.1/52430 |
| work_keys_str_mv | AT hsiehpojang microsaccaderatevarieswithsubjectivevisibilityduringmotioniblindness AT tsepeteru microsaccaderatevarieswithsubjectivevisibilityduringmotioniblindness |