@prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . @prefix prodotto: . unitaDiPersonaleInterno:MATRICOLA5142 pubblicazioni:autoreCNRDi prodotto:ID46732 . @prefix prodottidellaricerca: . @prefix istituto: . istituto:CDS078 prodottidellaricerca:prodotto prodotto:ID46732 . unitaDiPersonaleInterno:MATRICOLA9756 pubblicazioni:autoreCNRDi prodotto:ID46732 . @prefix modulo: . modulo:ID2656 prodottidellaricerca:prodotto prodotto:ID46732 . @prefix rdf: . prodotto:ID46732 rdf:type prodotto:TIPO1101 . @prefix retescientifica: . prodotto:ID46732 rdf:type retescientifica:ProdottoDellaRicerca . @prefix rdfs: . prodotto:ID46732 rdfs:label "Alpha rhythms in mild dements during visual delayed choice reaction time tasks. A MEG study (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID46732 pubblicazioni:anno "2005-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID46732 skos:altLabel "
Babiloni C, Cassetta E, Chiovenda P, Del Percio C, Ercolani M, Moretti DV, Moffa F, Pasqualetti P, Pizzella V, Romani GL, Tecchio F, Zappasodi F, Rossini PM (2005)
Alpha rhythms in mild dements during visual delayed choice reaction time tasks. A MEG study
in Brain research bulletin
"^^rdf:HTML ; pubblicazioni:autori "Babiloni C, Cassetta E, Chiovenda P, Del Percio C, Ercolani M, Moretti DV, Moffa F, Pasqualetti P, Pizzella V, Romani GL, Tecchio F, Zappasodi F, Rossini PM"^^xsd:string ; pubblicazioni:paginaInizio "457"^^xsd:string ; pubblicazioni:paginaFine "470"^^xsd:string ; pubblicazioni:numeroVolume "65"^^xsd:string . @prefix ns11: . prodotto:ID46732 pubblicazioni:rivista ns11:ID348758 ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:titolo "Alpha rhythms in mild dements during visual delayed choice reaction time tasks. A MEG study"^^xsd:string ; prodottidellaricerca:abstract "Can simple delayed response tasks affect latency and amplitude of magnetoencephalographic midline alpha rhythms (6\u009612 Hz) in early dementia?We recruited 15 mild Alzheimer\u0092s disease (AD) and 10 vascular dementia (VaD) patients (paired mini mental state exam of 17\u009624). The control groups comprised 18 young and 22 elderly normal subjects. In the first task, a simple \u0093cue\u0094 stimulus (one bit) was memorized along a brief delay period (3.5\u00965.5 s) up to a \u0093go\u0094 stimulus triggering (right or left) button press. In the second task, the \u0093cue\u0094 stimulus remained available along the delay period. Event-related reduction in power of the alpha rhythms indexed the cortical activation (event-related desynchronization, ERD) for the trials associated with correct behavioral responses. Behavioral performances to both tasks were lower in the AD and VaD patients than in the normal subjects. In particular, just four AD and five VaD patients executed a sufficient amount of correct responses for the alpha ERD analysis, so they were included in a unique group. In both tasks, the alpha ERD peak was later in latency in the demented and normal elderly subjects than in the normal young subjects. Furthermore, the alpha ERD peak was stronger in amplitude in the demented patients than in the normal subjects. These results suggest that simple delayed response tasks during physiological recordings are quite difficult for patients even at an early dementia stage. Such difficulty may induce the abnormal amount of the related cortical activation in dementia as revealed by the alpha ERD" ; prodottidellaricerca:prodottoDi istituto:CDS078 , modulo:ID2656 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA9756 , unitaDiPersonaleInterno:MATRICOLA5142 . ns11:ID348758 pubblicazioni:rivistaDi prodotto:ID46732 .