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@ARTICLE{Zimmermann:1037610,
author = {Zimmermann, Juliane T. and Ellison, T. Mark and Cangemi,
Francesco and Wehrle, Simon and Vogeley, Kai and Grice,
Martine},
title = {{L}ookers and listeners on the autism spectrum: the roles
of gaze duration and pitch height in inferring mental
states},
journal = {Frontiers in communication},
volume = {9},
issn = {2297-900X},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {FZJ-2025-00781},
pages = {1483135},
year = {2024},
abstract = {Although mentalizing abilities in autistic adults without
intelligence deficits are similar to those of control
participants in tasks relying on verbal information, they
are dissimilar in tasks relying on non-verbal information.
The current study aims to investigate mentalizing behavior
in autism in a paradigm involving two important nonverbal
means to communicate mental states: eye gaze and speech
intonation. In an eye-tracking experiment, participants with
ASD and a control group watched videos showing a virtual
character gazing at objects while an utterance was presented
auditorily. We varied the virtual character’s gaze
duration toward the object (600 or 1800 ms) and the height
of the pitch peak on the accented syllable of the word
denoting the object. Pitch height on the accented syllable
was varied by 45 Hz, leading to high or low prosodic
emphasis. Participants were asked to rate the importance of
the given object for the virtual character. At the end of
the experiment, we assessed how well participants recognized
the objects they were presented with in a recognition task.
Both longer gaze duration and higher pitch height increased
the importance ratings of the object for the virtual
character overall. Compared to the control group, ratings of
the autistic group were lower for short gaze, but higher
when gaze was long but pitch was low. Regardless of an ASD
diagnosis, participants clustered into three behaviorally
different subgroups, representing individuals whose ratings
were influenced (1) predominantly by gaze duration, (2)
predominantly by pitch height, or (3) by neither,
accordingly labelled “Lookers,” “Listeners” and
“Neithers” in our study. “Lookers” spent more time
fixating the virtual character’s eye region than
“Listeners,” while both “Listeners” and
“Neithers” spent more time fixating the object than
“Lookers.” Object recognition was independent of the
virtual character’s gaze duration towards the object and
pitch height. It was also independent of an ASD diagnosis.
Our results show that gaze duration and intonation are
effectively used by autistic persons for inferring the
importance of an object for a virtual character. Notably,
compared to the control group, autistic participants were
influenced more strongly by gaze duration than by pitch
height.},
cin = {INM-3},
ddc = {380},
cid = {I:(DE-Juel1)INM-3-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525) / DFG project 281511265 - SFB 1252: Prominenz in
Sprache (281511265)},
pid = {G:(DE-HGF)POF4-5251 / G:(GEPRIS)281511265},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001360545700001},
doi = {10.3389/fcomm.2024.1483135},
url = {https://juser.fz-juelich.de/record/1037610},
}