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Speech planning depends on next-speaker selection: evidence from pupillometry in question–answer sequences in naturalistic triadic conversation.

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Title: Speech planning depends on next-speaker selection: evidence from pupillometry in question–answer sequences in naturalistic triadic conversation.
Authors: Rühlemann, Christoph (AUTHOR), Barthel, Mathias (AUTHOR)
Source: Discourse Processes. Dec2025, Vol. 62 Issue 10, p765-786. 22p.
Subjects: Pupillometry, Conversation, Communication planning, Cognitive psychology
Abstract: Next-speaker selection, which controls who should speak next, is fundamental to turn taking. While it is central in Conversation Analysis, little is known about its cognitive repercussions. We draw on turn-taking and pupillometric data in triadic interaction, investigating open-floor questions, which license more than one participant to respond, and closed-floor questions, which license only a single participant to answer. Comparing pupil size changes in answerers versus not-answerers at turn transitions, we find that answerers' pupils dilate irrespective of question type, while not-answerers' pupils dilate only in open-floor questions, indicating that in closed-floor questions not-selected participants do not prepare a response, whereas in open-floor questions both recipients engage in response planning, even if only one responds. Mutual gaze, by contrast, is not found to have an effect on pupil size at turn transitions. We propose an extension to the current model of language processing in turn taking, including next-speaker selection as a relevant variable impacting interlocutors' behavior and their mental processes. [ABSTRACT FROM AUTHOR]
Copyright of Discourse Processes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Speech planning depends on next-speaker selection: evidence from pupillometry in question–answer sequences in naturalistic triadic conversation.
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  Data: <searchLink fieldCode="AR" term="%22Rühlemann%2C+Christoph%22">Rühlemann, Christoph</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Barthel%2C+Mathias%22">Barthel, Mathias</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Discourse+Processes%22">Discourse Processes</searchLink>. Dec2025, Vol. 62 Issue 10, p765-786. 22p.
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  Data: <searchLink fieldCode="DE" term="%22Pupillometry%22">Pupillometry</searchLink><br /><searchLink fieldCode="DE" term="%22Conversation%22">Conversation</searchLink><br /><searchLink fieldCode="DE" term="%22Communication+planning%22">Communication planning</searchLink><br /><searchLink fieldCode="DE" term="%22Cognitive+psychology%22">Cognitive psychology</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Next-speaker selection, which controls who should speak next, is fundamental to turn taking. While it is central in Conversation Analysis, little is known about its cognitive repercussions. We draw on turn-taking and pupillometric data in triadic interaction, investigating open-floor questions, which license more than one participant to respond, and closed-floor questions, which license only a single participant to answer. Comparing pupil size changes in answerers versus not-answerers at turn transitions, we find that answerers' pupils dilate irrespective of question type, while not-answerers' pupils dilate only in open-floor questions, indicating that in closed-floor questions not-selected participants do not prepare a response, whereas in open-floor questions both recipients engage in response planning, even if only one responds. Mutual gaze, by contrast, is not found to have an effect on pupil size at turn transitions. We propose an extension to the current model of language processing in turn taking, including next-speaker selection as a relevant variable impacting interlocutors' behavior and their mental processes. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Discourse Processes is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=189686080
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      – Type: doi
        Value: 10.1080/0163853X.2025.2544109
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      – Code: eng
        Text: English
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      – SubjectFull: Pupillometry
        Type: general
      – SubjectFull: Conversation
        Type: general
      – SubjectFull: Communication planning
        Type: general
      – SubjectFull: Cognitive psychology
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      – TitleFull: Speech planning depends on next-speaker selection: evidence from pupillometry in question–answer sequences in naturalistic triadic conversation.
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              Text: Dec2025
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              Y: 2025
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