Late development of audio-visual integration in the vertical plane
It is not clear how multisensory skills develop and how visual experience impacts on multisensory spatial development. Conflicting results show that visual calibration precedes multisensory integration for the audio-visual spatial bisection task (Gori et al., 2012a, 2012b) while in other tasks such...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-11-01
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| Series: | Current Research in Behavioral Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666518221000309 |
| _version_ | 1818965420577652736 |
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| author | Monica Gori Claudio Campus Giulia Cappagli |
| author_facet | Monica Gori Claudio Campus Giulia Cappagli |
| author_sort | Monica Gori |
| collection | DOAJ |
| description | It is not clear how multisensory skills develop and how visual experience impacts on multisensory spatial development. Conflicting results show that visual calibration precedes multisensory integration for the audio-visual spatial bisection task (Gori et al., 2012a, 2012b) while in other tasks such as spatial localization, visual calibration occurs after multisensory development (Rohlf et al., 2020). Results in blind individuals can say something about the role of vision on perceptual development. Scientific evidences show that blind individuals have impairments in bisecting the auditory space (Gori et al., 2014) but not in localizing auditory sources (Lessard et al., 1998). Such results suggest that sensory calibration and impairment are linked. We studied the development of audio-visual multisensory localization in the vertical plane in sighted individuals from 5 years to adulthood to address this hypothesis. We hypothesize that typical children would show late audio-visual integration for the vertical plane, preceded by visual dominance. Unimodal and bimodal audio-visual thresholds and PSEs were measured and compared with the Bayesian optimal-integration model (maximum likelihood estimation). Results show that the development of multisensory integration in the vertical plane is not evident at 5 years, suggesting visual dominance for vertical audio-visual localization. These results support the idea that multisensory perception in the vertical domain depends on sensory calibration. We discuss these scientific results proposing that the process of cross-sensory calibration is task-specific and highlighting the importance of linking the impairment and development to better determine how our brain works. |
| first_indexed | 2024-12-20T13:16:44Z |
| format | Article |
| id | doaj.art-46836b9aefd74812ac73481841c3823f |
| institution | Directory Open Access Journal |
| issn | 2666-5182 |
| language | English |
| last_indexed | 2024-12-20T13:16:44Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Current Research in Behavioral Sciences |
| spelling | doaj.art-46836b9aefd74812ac73481841c3823f2022-12-21T19:39:31ZengElsevierCurrent Research in Behavioral Sciences2666-51822021-11-012100043Late development of audio-visual integration in the vertical planeMonica Gori0Claudio Campus1Giulia Cappagli2Corresponding author.; Unit for Visually Impaired People, Istituto Italiano di Tecnologia (IIT), Via Melen 85, Genova 16163, ItalyUnit for Visually Impaired People, Istituto Italiano di Tecnologia (IIT), Via Melen 85, Genova 16163, ItalyUnit for Visually Impaired People, Istituto Italiano di Tecnologia (IIT), Via Melen 85, Genova 16163, ItalyIt is not clear how multisensory skills develop and how visual experience impacts on multisensory spatial development. Conflicting results show that visual calibration precedes multisensory integration for the audio-visual spatial bisection task (Gori et al., 2012a, 2012b) while in other tasks such as spatial localization, visual calibration occurs after multisensory development (Rohlf et al., 2020). Results in blind individuals can say something about the role of vision on perceptual development. Scientific evidences show that blind individuals have impairments in bisecting the auditory space (Gori et al., 2014) but not in localizing auditory sources (Lessard et al., 1998). Such results suggest that sensory calibration and impairment are linked. We studied the development of audio-visual multisensory localization in the vertical plane in sighted individuals from 5 years to adulthood to address this hypothesis. We hypothesize that typical children would show late audio-visual integration for the vertical plane, preceded by visual dominance. Unimodal and bimodal audio-visual thresholds and PSEs were measured and compared with the Bayesian optimal-integration model (maximum likelihood estimation). Results show that the development of multisensory integration in the vertical plane is not evident at 5 years, suggesting visual dominance for vertical audio-visual localization. These results support the idea that multisensory perception in the vertical domain depends on sensory calibration. We discuss these scientific results proposing that the process of cross-sensory calibration is task-specific and highlighting the importance of linking the impairment and development to better determine how our brain works.http://www.sciencedirect.com/science/article/pii/S2666518221000309MultisensorySpatial developmentAuditory localizationSensory calibrationVerticality perception |
| spellingShingle | Monica Gori Claudio Campus Giulia Cappagli Late development of audio-visual integration in the vertical plane Current Research in Behavioral Sciences Multisensory Spatial development Auditory localization Sensory calibration Verticality perception |
| title | Late development of audio-visual integration in the vertical plane |
| title_full | Late development of audio-visual integration in the vertical plane |
| title_fullStr | Late development of audio-visual integration in the vertical plane |
| title_full_unstemmed | Late development of audio-visual integration in the vertical plane |
| title_short | Late development of audio-visual integration in the vertical plane |
| title_sort | late development of audio visual integration in the vertical plane |
| topic | Multisensory Spatial development Auditory localization Sensory calibration Verticality perception |
| url | http://www.sciencedirect.com/science/article/pii/S2666518221000309 |
| work_keys_str_mv | AT monicagori latedevelopmentofaudiovisualintegrationintheverticalplane AT claudiocampus latedevelopmentofaudiovisualintegrationintheverticalplane AT giuliacappagli latedevelopmentofaudiovisualintegrationintheverticalplane |