?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Attentional+and+Semantic+Anticipations&rft.creator=Lavigne%2C+Fr%C3%A9d%C3%A9ric&rft.creator=Denis%2C+Sylvain&rft.subject=Behavioral+Analysis&rft.subject=Behavioral+Biology&rft.subject=Cognitive+Psychology&rft.subject=Dynamical+Systems&rft.subject=Neural+Nets&rft.subject=Evolutionary+Psychology&rft.subject=Pragmatics&rft.subject=Semantics&rft.subject=Neural+Modelling&rft.subject=Psycholinguistics&rft.description=Why+are+attentional+processes+important+in+the+driving+of+anticipations%3F+Anticipatory+processes+are+fundamental+cognitive+abilities+of+living+systems%2C+in+order+to+rapidly+and+accurately+perceive+new+events+in+the+environment%2C+and+to+trigger+adapted+behaviors+to+the+newly+perceived+events.+To+process+anticipations+adapted+to+sequences+of+various+events+in+complex+environments%2C+the+cognitive+system+must+be+able+to+run+specific+anticipations+on+the+basis+of+selected+relevant+events.+Then+more+attention+must+be+given+to+events+potentially+relevant+for+the+living+system%2C+compared+to+less+important+events.%0AWhat+are+useful+attentional+factors+in+anticipatory+processes%3F+The+relevance+of+events+in+the+environment+depend+on+the+effects+they+can+have+on+the+survival+of+the+living+system.+The+cognitive+system+must+then+be+able+to+detect+relevant+events+to+drive+anticipations+and+to+trigger+adapted+behaviors.+The+attention+given+to+an+event+depends+on+i)+its+external+physical+relevance+in+the+environment%2C+such+as+time+duration+and+visual+quality%2C+and+ii)+on+its+internal+semantic+relevance+in+memory%2C+such+as+knowledge+about+the+event+(semantic+field+in+memory)+and+anticipatory+power+(associative+strength+to+anticipated+associates).+%0AHow+can+we+model+interactions+between+attentional+and+semantic+anticipations%3F+Specific+types+of+distributed+recurrent+neural+networks+are+able+to+code+temporal+sequences+of+events+as+associated+attractors+in+memory.+Particular+learning+protocol+and+spike+rate+transmission+through+synaptic+associations+allow+the+model+presented+to+vary+attentionally+the+amount+of+activation+of+anticipations+(by+activation+or+inhibition+processes)+as+a+function+of+the+external+and+internal+relevance+of+the+perceived+events.+This+type+of+model+offers+a+unique+opportunity+to+account+for+both+anticipations+and+attention+in+unified+terms+of+neural+dynamics+in+a+recurrent+network.%0A&rft.contributor=Dubois%2C+Daniel&rft.date=2001&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F2249%2F3%2Flavigne-denis-2001.pdf&rft.identifier=++Lavigne%2C+Fr%C3%A9d%C3%A9ric+and+Denis%2C+Sylvain++(2001)+Attentional+and+Semantic+Anticipations.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F2249%2F