Pupillary dilation response reflects surprising moments in music

There are indications that the pupillary dilation response (PDR) reflects surprising moments in an auditory sequence such as the appearance of a deviant noise against repetitively presented pure tones (Liao, Yoneya, Kidani, Kashino, & Furukawa, 2016), and salient and loud sounds that are evaluat...

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Main Authors: Hsin-I Liao, Yoneya Makoto, Makio Kashino, Shigeto Furukawa
Format: Article
Language:English
Published: Bern Open Publishing 2018-12-01
Series:Journal of Eye Movement Research
Subjects:
Online Access:https://bop.unibe.ch/JEMR/article/view/4289
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author Hsin-I Liao
Yoneya Makoto
Makio Kashino
Shigeto Furukawa
author_facet Hsin-I Liao
Yoneya Makoto
Makio Kashino
Shigeto Furukawa
author_sort Hsin-I Liao
collection DOAJ
description There are indications that the pupillary dilation response (PDR) reflects surprising moments in an auditory sequence such as the appearance of a deviant noise against repetitively presented pure tones (Liao, Yoneya, Kidani, Kashino, & Furukawa, 2016), and salient and loud sounds that are evaluated by human participants subjectively (Liao, Kidani, Yoneya, Kashino, & Furukawa, 2016). In the current study, we further examined whether the reflection of PDR in auditory surprise can be accumulated and revealed in complex and yet structured auditory stimuli, i.e., music, and when the surprise is defined subjectively. Participants listened to 15 excerpts of music while their pupillary responses were recorded. In the surprise-rating session, participants rated how surprising an instance in the excerpt was, i.e., rich in variation versus monotonous, while they listened to it. In the passive-listening session, they listened to the same 15 excerpts again but were not involved in any task. The pupil diameter data obtained from both sessions were time-aligned to the rating data obtained from the surprise-rating session. Results showed that in both sessions, mean pupil diameter was larger at moments rated more surprising than unsurprising. The result suggests that the PDR reflects surprise in music automatically.
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spelling doaj.art-8c7a35b91ff84b1585941359265211ff2022-12-21T19:45:18ZengBern Open PublishingJournal of Eye Movement Research1995-86922018-12-0111210.16910/jemr.11.2.13Pupillary dilation response reflects surprising moments in musicHsin-I LiaoYoneya MakotoMakio KashinoShigeto FurukawaThere are indications that the pupillary dilation response (PDR) reflects surprising moments in an auditory sequence such as the appearance of a deviant noise against repetitively presented pure tones (Liao, Yoneya, Kidani, Kashino, & Furukawa, 2016), and salient and loud sounds that are evaluated by human participants subjectively (Liao, Kidani, Yoneya, Kashino, & Furukawa, 2016). In the current study, we further examined whether the reflection of PDR in auditory surprise can be accumulated and revealed in complex and yet structured auditory stimuli, i.e., music, and when the surprise is defined subjectively. Participants listened to 15 excerpts of music while their pupillary responses were recorded. In the surprise-rating session, participants rated how surprising an instance in the excerpt was, i.e., rich in variation versus monotonous, while they listened to it. In the passive-listening session, they listened to the same 15 excerpts again but were not involved in any task. The pupil diameter data obtained from both sessions were time-aligned to the rating data obtained from the surprise-rating session. Results showed that in both sessions, mean pupil diameter was larger at moments rated more surprising than unsurprising. The result suggests that the PDR reflects surprise in music automatically.https://bop.unibe.ch/JEMR/article/view/4289pupilmusicsurprisesaliencedecision makingfamiliarity
spellingShingle Hsin-I Liao
Yoneya Makoto
Makio Kashino
Shigeto Furukawa
Pupillary dilation response reflects surprising moments in music
Journal of Eye Movement Research
pupil
music
surprise
salience
decision making
familiarity
title Pupillary dilation response reflects surprising moments in music
title_full Pupillary dilation response reflects surprising moments in music
title_fullStr Pupillary dilation response reflects surprising moments in music
title_full_unstemmed Pupillary dilation response reflects surprising moments in music
title_short Pupillary dilation response reflects surprising moments in music
title_sort pupillary dilation response reflects surprising moments in music
topic pupil
music
surprise
salience
decision making
familiarity
url https://bop.unibe.ch/JEMR/article/view/4289
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AT yoneyamakoto pupillarydilationresponsereflectssurprisingmomentsinmusic
AT makiokashino pupillarydilationresponsereflectssurprisingmomentsinmusic
AT shigetofurukawa pupillarydilationresponsereflectssurprisingmomentsinmusic