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Istituto di scienze e tecnologie della cognizione

Torna all'elenco Contributi in rivista anno 2014

Contributo in rivista

Tipo: Articolo in rivista

Titolo: Emotion Based Attentional Priority for Storage in Visual Short-Term Memory

Anno di pubblicazione: 2014

Formato: Elettronico

Autori: Simione, Luca; Calabrese, Lucia; Marucci, Francesco S.; Belardinelli, Marta Olivetti; Raffone, Antonino; Maratos, Frances A.

Affiliazioni autori: Sapienza University Rome; Institute of Cognitive Sciences and Technologies, CNR; Interuniv Ctr; University of Derby

Autori CNR:

  • LUCA SIMIONE

Lingua: inglese

Abstract: A plethora of research demonstrates that the processing of emotional faces is prioritised over non-emotive stimuli when cognitive resources are limited (this is known as 'emotional superiority'). However, there is debate as to whether competition for processing resources results in emotional superiority per se, or more specifically, threat superiority. Therefore, to investigate prioritisation of emotional stimuli for storage in visual short-term memory (VSTM), we devised an original VSTM report procedure using schematic (angry, happy, neutral) faces in which processing competition was manipulated. In Experiment 1, display exposure time was manipulated to create competition between stimuli. Participants (n = 20) had to recall a probed stimulus from a set size of four under high (150 ms array exposure duration) and low (400 ms array exposure duration) perceptual processing competition. For the high competition condition (i.e. 150 ms exposure), results revealed an emotional superiority effect per se. In Experiment 2 (n = 20), we increased competition by manipulating set size (three versus five stimuli), whilst maintaining a constrained array exposure duration of 150 ms. Here, for the five-stimulus set size (i.e. maximal competition) only threat superiority emerged. These findings demonstrate attentional prioritisation for storage in VSTM for emotional faces. We argue that task demands modulated the availability of processing resources and consequently the relative magnitude of the emotional/threat superiority effect, with only threatening stimuli prioritised for storage in VSTM under more demanding processing conditions. Our results are discussed in light of models and theories of visual selection, and not only combine the two strands of research (i.e. visual selection and emotion), but highlight a critical factor in the processing of emotional stimuli is availability of processing resources, which is further constrained by task demands.

Lingua abstract: inglese

Pagine totali: 8

Rivista:

PloS one Public Library of Science
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 1932-6203

Numero volume: 9

Numero fascicolo: 5

DOI: 10.1371/journal.pone.0095261

Referee: Sė: Internazionale

Indicizzato da: ISI Web of Science (WOS) [000335510600030]

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