Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts

We studied temporal order judgements (TOJs) of gaze shift behaviours and evaluated the impact of gaze direction (direct and averted gaze) and face context information (both eyes set within a single face or each eye within two adjacent hemifaces) on TOJ performance measures. Avatar faces initially ga...

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Main Authors: Binetti, Nicola, Harrison, Charlotte, Mareschal, Isabelle, Johnston, Alan
Format: Article
Published: SAGE Publications 2017
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Online Access:https://eprints.nottingham.ac.uk/45120/
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author Binetti, Nicola
Harrison, Charlotte
Mareschal, Isabelle
Johnston, Alan
author_facet Binetti, Nicola
Harrison, Charlotte
Mareschal, Isabelle
Johnston, Alan
author_sort Binetti, Nicola
building Nottingham Research Data Repository
collection Online Access
description We studied temporal order judgements (TOJs) of gaze shift behaviours and evaluated the impact of gaze direction (direct and averted gaze) and face context information (both eyes set within a single face or each eye within two adjacent hemifaces) on TOJ performance measures. Avatar faces initially gazed leftwards or rightwards (Starting Gaze Direction). This was followed by sequential and independent left and right eye gaze shifts with various amounts of stimulus onset asynchrony. Gaze shifts could be either Matching (both eyes end up pointing direct or averted) or Mismatching (one eye ends up pointing direct, the other averted). Matching shifts revealed an attentional cueing mechanism, where TOJs were biased in favour of the eye lying in the hemispace cued by the avatar’s Starting Gaze Direction. For example, the left eye was more likely to be judged as shifting first when the avatar initially gazed toward the left side of the screen. Mismatching shifts showed biased TOJs in favour of the eye performing the averted shift, but only in the context of two separate hemifaces that does not violate expectations of directional gaze shift congruency. This suggests a postdictive inferential strategy that prioritises eye movements based on the type of gaze shift, independently of where attention is initially allocated. Averted shifts are prioritised over direct, as these might signal the presence of behaviourally relevant information in the environment.
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spelling nottingham-451202020-05-04T18:58:24Z https://eprints.nottingham.ac.uk/45120/ Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts Binetti, Nicola Harrison, Charlotte Mareschal, Isabelle Johnston, Alan We studied temporal order judgements (TOJs) of gaze shift behaviours and evaluated the impact of gaze direction (direct and averted gaze) and face context information (both eyes set within a single face or each eye within two adjacent hemifaces) on TOJ performance measures. Avatar faces initially gazed leftwards or rightwards (Starting Gaze Direction). This was followed by sequential and independent left and right eye gaze shifts with various amounts of stimulus onset asynchrony. Gaze shifts could be either Matching (both eyes end up pointing direct or averted) or Mismatching (one eye ends up pointing direct, the other averted). Matching shifts revealed an attentional cueing mechanism, where TOJs were biased in favour of the eye lying in the hemispace cued by the avatar’s Starting Gaze Direction. For example, the left eye was more likely to be judged as shifting first when the avatar initially gazed toward the left side of the screen. Mismatching shifts showed biased TOJs in favour of the eye performing the averted shift, but only in the context of two separate hemifaces that does not violate expectations of directional gaze shift congruency. This suggests a postdictive inferential strategy that prioritises eye movements based on the type of gaze shift, independently of where attention is initially allocated. Averted shifts are prioritised over direct, as these might signal the presence of behaviourally relevant information in the environment. SAGE Publications 2017-08-01 Article PeerReviewed Binetti, Nicola, Harrison, Charlotte, Mareschal, Isabelle and Johnston, Alan (2017) Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts. i-Perception, 8 (4). pp. 1-14. ISSN 2041-6695 Temporal order judgements prior entry stimulus onset asynchrony gaze shifts gaze cueing social communication http://journals.sagepub.com/doi/10.1177/2041669517720808 doi:10.1177/2041669517720808 doi:10.1177/2041669517720808
spellingShingle Temporal order judgements
prior entry
stimulus onset asynchrony
gaze shifts
gaze cueing
social communication
Binetti, Nicola
Harrison, Charlotte
Mareschal, Isabelle
Johnston, Alan
Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title_full Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title_fullStr Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title_full_unstemmed Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title_short Temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
title_sort temporal order judgements of dynamic gaze stimuli reveal a postdictive prioritisation of averted over direct shifts
topic Temporal order judgements
prior entry
stimulus onset asynchrony
gaze shifts
gaze cueing
social communication
url https://eprints.nottingham.ac.uk/45120/
https://eprints.nottingham.ac.uk/45120/
https://eprints.nottingham.ac.uk/45120/