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<p>In separate lines of work, facility in detail-focused local processing and reduced left visual field (LVF) bias have been associated with autism. Plausibly, local-processing facility and reduced LVF bias could reflect a common neurocognitive mechanism – most likely reduced right-hemisphere dominance in visual attention. To test this possibility, undergraduate students selected to differ systematically in social and non-social autistic traits completed tasks assessing local-processing facility (Leuven Embedded Figures) and LVF bias (greyscales task). Participants with more pronounced social difficulties showed greater local-processing ability and reduced LVF bias compared to participants with less pronounced social difficulties. Local-processing ability also correlated negatively with LVF bias. This is the first study to examine both LVF bias and local-processing preference in the context of autism. The finding of relationship between these two cognitive features is behavioural evidence supporting the notion of a common underlying neurocognitive mechanism and of potential alterations in right hemisphere activation as a function of autism.</p>

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Figure disembedding facility and reduced left visual field bias are linked to the social dimension of autistic traits

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月9日

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  • Michael C. W. English,
  • Isabelle M. Raiter,
  • Nigel T. M. Chen,
  • Diana W. Tan,
  • Fabrice B. R. Parmentier,
  • Troy A. W. Visser,
  • Murray T. Maybery

摘要

In separate lines of work, facility in detail-focused local processing and reduced left visual field (LVF) bias have been associated with autism. Plausibly, local-processing facility and reduced LVF bias could reflect a common neurocognitive mechanism – most likely reduced right-hemisphere dominance in visual attention. To test this possibility, undergraduate students selected to differ systematically in social and non-social autistic traits completed tasks assessing local-processing facility (Leuven Embedded Figures) and LVF bias (greyscales task). Participants with more pronounced social difficulties showed greater local-processing ability and reduced LVF bias compared to participants with less pronounced social difficulties. Local-processing ability also correlated negatively with LVF bias. This is the first study to examine both LVF bias and local-processing preference in the context of autism. The finding of relationship between these two cognitive features is behavioural evidence supporting the notion of a common underlying neurocognitive mechanism and of potential alterations in right hemisphere activation as a function of autism.