The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion.
Often multisensory information is integrated in a statistically optimal fashion where each sensory source is weighted according to its precision. This integration scheme isstatistically optimal because it theoretically results in unbiased perceptual estimates with the highest precisionpossible.There...
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| Language: | English |
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Public Library of Science (PLoS)
2014-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0089339&type=printable |
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| author | Jess Hartcher-O'Brien Massimiliano Di Luca Marc O Ernst |
| author_facet | Jess Hartcher-O'Brien Massimiliano Di Luca Marc O Ernst |
| author_sort | Jess Hartcher-O'Brien |
| collection | DOAJ |
| description | Often multisensory information is integrated in a statistically optimal fashion where each sensory source is weighted according to its precision. This integration scheme isstatistically optimal because it theoretically results in unbiased perceptual estimates with the highest precisionpossible.There is a current lack of consensus about how the nervous system processes multiple sensory cues to elapsed time.In order to shed light upon this, we adopt a computational approach to pinpoint the integration strategy underlying duration estimationof audio/visual stimuli. One of the assumptions of our computational approach is that the multisensory signals redundantly specify the same stimulus property. Our results clearly show that despite claims to the contrary, perceived duration is the result of an optimal weighting process, similar to that adopted for estimates of space. That is, participants weight the audio and visual information to arrive at the most precise, single duration estimate possible. The work also disentangles how different integration strategies - i.e. consideringthe time of onset/offset ofsignals - might alter the final estimate. As such we provide the first concrete evidence of an optimal integration strategy in human duration estimates. |
| format | Article |
| id | doaj-art-1c8dbfe2fc244ab2b6dba165b515676b |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-1c8dbfe2fc244ab2b6dba165b515676b2025-08-20T03:25:47ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0193e8933910.1371/journal.pone.0089339The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion.Jess Hartcher-O'BrienMassimiliano Di LucaMarc O ErnstOften multisensory information is integrated in a statistically optimal fashion where each sensory source is weighted according to its precision. This integration scheme isstatistically optimal because it theoretically results in unbiased perceptual estimates with the highest precisionpossible.There is a current lack of consensus about how the nervous system processes multiple sensory cues to elapsed time.In order to shed light upon this, we adopt a computational approach to pinpoint the integration strategy underlying duration estimationof audio/visual stimuli. One of the assumptions of our computational approach is that the multisensory signals redundantly specify the same stimulus property. Our results clearly show that despite claims to the contrary, perceived duration is the result of an optimal weighting process, similar to that adopted for estimates of space. That is, participants weight the audio and visual information to arrive at the most precise, single duration estimate possible. The work also disentangles how different integration strategies - i.e. consideringthe time of onset/offset ofsignals - might alter the final estimate. As such we provide the first concrete evidence of an optimal integration strategy in human duration estimates.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0089339&type=printable |
| spellingShingle | Jess Hartcher-O'Brien Massimiliano Di Luca Marc O Ernst The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. PLoS ONE |
| title | The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. |
| title_full | The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. |
| title_fullStr | The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. |
| title_full_unstemmed | The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. |
| title_short | The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion. |
| title_sort | duration of uncertain times audiovisual information about intervals is integrated in a statistically optimal fashion |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0089339&type=printable |
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