Shifting attention between modalities: Revisiting the modality-shift effect in autism
AuthorsPoole, Daniel; orcid: 0000-0002-7399-2499; email: firstname.lastname@example.org
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AbstractAbstract: Selective attention to a sensory modality has been observed experimentally in studies of the modality-shift effect – a relative performance benefit for targets preceded by a target in the same modality, compared to a different modality. Differences in selective attention are commonly observed in autism and we investigated whether exogenous (automatic) shift costs between modalities are increased. Autistic adults and neurotypical controls made speeded discrimination responses to simple visual, tactile and auditory targets. Shift costs were observed for each target modality in participant response times and were largest for auditory targets, reflective of fast responses on auditory repeat trials. Critically, shift costs were similar between the groups. However, integrating speed and accuracy data using drift-diffusion modelling revealed that shift costs in drift rates (reflecting the quality of information extracted from the stimulus) were reduced for autistic participants compared with neurotypicals. It may be that, unlike neurotypicals, there is little difference between attention within and between sensory modalities for autistic people. This finding also highlights the benefit of combining reaction time and accuracy data using decision models to better characterise selective attention in autism.
CitationAttention, Perception, & Psychophysics, volume 83, issue 6, page 2498-2509
DescriptionFrom Springer Nature via Jisc Publications Router
History: accepted 2021-03-14, registration 2021-03-16, online 2021-04-30, pub-electronic 2021-04-30, pub-print 2021-08
Publication status: Published