Word position affects stimulus recognition: Evidence for early ERP short-term plastic modulation (Articolo in rivista)

Type
Label
  • Word position affects stimulus recognition: Evidence for early ERP short-term plastic modulation (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.ijpsycho.2011.08.009 (literal)
Alternative label
  • Spironelli, Chiara; Galfano, Giovanni; Umilta, Carlo; Angrilli, Alessandro (2011)
    Word position affects stimulus recognition: Evidence for early ERP short-term plastic modulation
    in International journal of psychophysiology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Spironelli, Chiara; Galfano, Giovanni; Umilta, Carlo; Angrilli, Alessandro (literal)
Pagina inizio
  • 217 (literal)
Pagina fine
  • 224 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.ncbi.nlm.nih.gov/pubmed/21924299 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 82 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1, 3: Department of General Psychology, University of Padova, via Venezia 8, 35131 Padova, Italy; 2: Department of Developmental Psychology, University of Padova, via Venezia 8, 35131 Padova, Italy; 4: Department of General Psychology, University of Padova, via Venezia 8, 35131 Padova, Italy / c CNR Institute of Neuroscience, Viale G. Colombo 3, 35121 Padova, Italy (literal)
Titolo
  • Word position affects stimulus recognition: Evidence for early ERP short-term plastic modulation (literal)
Abstract
  • The present study was aimed at investigating the short-term plastic changes that follow word learning at a neurophysiological level. The main hypothesis was that word position (left or right visual field. LVF/RH or RVF/LH) in the initial learning phase would leave a trace that affected, in the subsequent recognition phase, the Recognition Potential (i.e.. the first negative component distinguishing words from other stimuli) elicited 220-240 ms after centrally presented stimuli. Forty-eight students were administered, in the learning phase, 125 words for 4 s, randomly presented half in the left and half in the right visual field. In the recognition phase, participants were split into two equal groups, one was assigned to the Word task, the other to the Picture task (in which half of the 125 pictures were new, and half matched prior studied words). During the Word task, old RVF/LH words elicited significantly greater negativity in left posterior sites with respect to old LVF/RH words, which in turn showed the same pattern of activation evoked by new words. Therefore, correspondence between stimulus spatial position and hemisphere specialized in automatic word recognition created a robust prime for subsequent recognition. During the Picture task, pictures matching old RVF/LH words showed no differences compared with new pictures, but evoked significantly greater negativity than pictures matching old LVF/RH words. Thus, the priming effect vanished when the task required a switch from visual analysis to stored linguistic information, whereas the lack of correspondence between stimulus position and network specialized in automatic word recognition (i.e., when words were presented to the LVF/RH) revealed the implicit costs for recognition. Results support the view that short-term plastic changes occurring in a linguistic learning task interact with both stimulus position and modality (written word vs. picture representation). (C) 2011 Elsevier B.V. All rights reserved. (literal)
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