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Encoding perceptual ensembles during visual search in peripheral vision

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dc.contributor.author Tanrikulu, Ömer Daglar
dc.contributor.author Chetverikov, Andrey
dc.contributor.author Kristjánsson, Árni
dc.date.accessioned 2022-09-09T01:00:30Z
dc.date.available 2022-09-09T01:00:30Z
dc.date.issued 2020
dc.identifier.citation Tanrikulu , Ö D , Chetverikov , A & Kristjánsson , Á 2020 , ' Encoding perceptual ensembles during visual search in peripheral vision ' , Journal of Vision , vol. 20 , no. 8 , 820 , pp. 1-18 . https://doi.org/10.1167/JOV.20.8.20
dc.identifier.issn 1534-7362
dc.identifier.other PURE: 30057283
dc.identifier.other PURE UUID: 4dab9dc8-42d1-4dc3-9c04-bde9ef181d7c
dc.identifier.other Scopus: 85089649691
dc.identifier.uri https://hdl.handle.net/20.500.11815/3436
dc.description Funding Information: The authors thank Sabrina Hansmann-Roth for valuable feedback on the data analysis and the interpretation of the data. ODT and AK were supported by grant IRF #173947-052 from the Icelandic Research Fund, and by a grant from the Research Fund of the University of Iceland. AC is supported by Radboud Excellence Fellowship. Publisher Copyright: © The Authors.
dc.description.abstract Observers can learn complex statistical properties of visual ensembles, such as their probability distributions. Even though ensemble encoding is considered critical for peripheral vision, whether observers learn such distributions in the periphery has not been studied. Here, we used a visual search task to investigate how the shape of distractor distributions influences search performance and ensemble encoding in peripheral and central vision. Observers looked for an oddly oriented bar among distractors taken from either uniform or Gaussian orientation distributions with the same mean and range. The search arrays were either presented in the foveal or peripheral visual fields. The repetition and role reversal effects on search times revealed observers' internal model of distractor distributions. Our results showed that the shape of the distractor distribution influenced search times only in foveal, but not in peripheral search. However, role reversal effects revealed that the shape of the distractor distribution could be encoded peripherally depending on the interitem spacing in the search array. Our results suggest that, although peripheral vision might rely heavily on summary statistical representations of feature distributions, it can also encode information about the distributions themselves.
dc.format.extent 18
dc.format.extent 1-18
dc.language.iso en
dc.relation.ispartofseries Journal of Vision; 20(8)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Ensemble perception
dc.subject Peripheral vision
dc.subject Priming of pop-out
dc.subject Summary statistics
dc.subject Visual search
dc.subject Ophthalmology
dc.subject Sensory Systems
dc.title Encoding perceptual ensembles during visual search in peripheral vision
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
dc.description.version Peer reviewed
dc.identifier.pmid 32810275
dc.identifier.doi https://doi.org/10.1167/JOV.20.8.20
dc.relation.url http://www.scopus.com/inward/record.url?scp=85089649691&partnerID=8YFLogxK
dc.contributor.department Faculty of Psychology
dc.contributor.school Health Sciences

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