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dc.contributor.authorKokmotou, K.en
dc.contributor.authorSoto, V.en
dc.contributor.authorWright, H.en
dc.contributor.authorFallon, N.en
dc.contributor.authorThomas, Aen
dc.contributor.authorGiesbrecht, T.en
dc.contributor.authorField, M.en
dc.contributor.authorStancak, A.en
dc.contributor.authorCook, Stephanieen
dc.date.accessioned2018-08-07T13:29:03Z
dc.date.available2018-08-07T13:29:03Z
dc.date.issued2018-02-18
dc.identifier.citationCook, S., Kokmotou, K., Soto, V., Wright, H., Fallon, N., Thomas, A., Giesbrecht, T., Field, M., Stancak, A. (2018) Simultaneous odour-face presentation strengthens hedonic evaluations and event-related potential responses influenced by unpleasant odour. Neuroscience Letters, 672, pp. 22-27.en
dc.identifier.urihttp://hdl.handle.net/2086/16435
dc.descriptionopen access articleen
dc.description.abstractOdours alter evaluations of concurrently presented visual stimuli, such as faces. Stimulus onset asynchrony (SOA) is known to affect evaluative priming in various sensory modalities. However, effects of SOA on odour priming of visual stimuli are not known. The present study aimed to analyse whether subjective and cortical activation changes during odour priming would vary as a function of SOA between odours and faces. Twenty-eight participants rated faces under pleasant, unpleasant, and no-odour conditions using visual analogue scales. In half of trials, faces appeared one-second after odour offset (SOA 1). In the other half of trials, faces appeared during the odour pulse (SOA 2). EEG was recorded continuously using a 128-channel system, and event-related potentials (ERPs) to face stimuli were evaluated using statistical parametric mapping (SPM). Faces presented during unpleasant-odour stimulation were rated significantly less pleasant than the same faces presented one-second after offset of the unpleasant odour. Scalp-time clusters in the late-positive-potential (LPP) time-range showed an interaction between odour and SOA effects, whereby activation was stronger for faces presented simultaneously with the unpleasant odour, compared to the same faces presented after odour offset. Our results highlight stronger unpleasant odour priming with simultaneous, compared to delayed, odour-face presentation. Such effects were represented in both behavioural and neural data. A greater cortical and subjective response during simultaneous presentation of faces and unpleasant odour may have an adaptive role, allowing for a prompt and focused behavioural reaction to a concurrent stimulus if an aversive odour would signal danger, or unwanted social interaction.en
dc.language.isoenen
dc.publisherElsevieren
dc.subjectOlfactionen
dc.subjectEEGen
dc.subjectPerceptionen
dc.subjectTimeen
dc.titleSimultaneous odour-face presentation strengthens hedonic evaluations and event-related potential responses influenced by unpleasant odouren
dc.typeArticleen
dc.identifier.doihttps://doi.org/10.1016/j.neulet.2018.02.032
dc.peerreviewedYesen
dc.funderESRC (Economic and Social Research Council)en
dc.funderUnileveren
dc.projectidES/J500094/1en
dc.cclicenceCC-BY-NCen
dc.date.acceptance2018-02-15en
dc.exception.reasonThe output was published as gold open accessen
dc.researchinstituteInstitute for Psychological Scienceen


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