Learning auditory space: Generalization and Long-Term Effects

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Mendonça, Catarina
dc.contributor.author Campos, Guilherme
dc.contributor.author Dias, Paulo
dc.contributor.author Santos, Jorge A.
dc.date.accessioned 2017-05-11T08:24:35Z
dc.date.available 2017-05-11T08:24:35Z
dc.date.issued 2013
dc.identifier.citation Mendonça , C , Campos , G , Dias , P & Santos , J A 2013 , ' Learning auditory space: Generalzations and long-term effects ' PLOS ONE , vol 8 , no. 10 , e77900 , pp. 1-14 . DOI: 10.1371/journal.pone.0077900 en
dc.identifier.issn 1932-6203
dc.identifier.other PURE UUID: 6cd67428-4bba-425b-8d80-24d582059cef
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/learning-auditory-space-generalization-and-longterm-effects(6cd67428-4bba-425b-8d80-24d582059cef).html
dc.identifier.other PURE LINK: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0077900
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/12865609/journal.pone.0077900.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/25593
dc.description.abstract Background Previous findings have shown that humans can learn to localize with altered auditory space cues. Here we analyze such learning processes and their effects up to one month on both localization accuracy and sound externalization. Subjects were trained and retested, focusing on the effects of stimulus type in learning, stimulus type in localization, stimulus position, previous experience, externalization levels, and time. Method We trained listeners in azimuth and elevation discrimination in two experiments. Half participated in the azimuth experiment first and half in the elevation first. In each experiment, half were trained in speech sounds and half in white noise. Retests were performed at several time intervals: just after training and one hour, one day, one week and one month later. In a control condition, we tested the effect of systematic retesting over time with post-tests only after training and either one day, one week, or one month later. Results With training all participants lowered their localization errors. This benefit was still present one month after training. Participants were more accurate in the second training phase, revealing an effect of previous experience on a different task. Training with white noise led to better results than training with speech sounds. Moreover, the training benefit generalized to untrained stimulus-position pairs. Throughout the post-tests externalization levels increased. In the control condition the long-term localization improvement was not lower without additional contact with the trained sounds, but externalization levels were lower. Conclusion Our findings suggest that humans adapt easily to altered auditory space cues and that such adaptation spreads to untrained positions and sound types. We propose that such learning depends on all available cues, but each cue type might be learned and retrieved differently. The process of localization learning is global, not limited to stimulus-position pairs, and it differs from externalization processes. en
dc.format.extent 1-14
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PLOS ONE en
dc.relation.ispartofseries Volume 8, issue 10 en
dc.rights openAccess en
dc.subject.other 213 Electronic, automation and communications engineering, electronics en
dc.subject.other 113 Computer and information sciences en
dc.subject.other 114 Physical sciences en
dc.subject.other 111 Mathematics en
dc.title Learning auditory space: Generalization and Long-Term Effects en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Signal Processing and Acoustics en
dc.subject.keyword 213 Electronic, automation and communications engineering, electronics
dc.subject.keyword 113 Computer and information sciences
dc.subject.keyword 114 Physical sciences
dc.subject.keyword 111 Mathematics
dc.identifier.urn URN:NBN:fi:aalto-201705113977
dc.identifier.doi 10.1371/journal.pone.0077900
dc.type.version publishedVersion


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