Focused Attention Deficits in Patients with Alzheimer's Disease and Mild Cognitive Impairment

Autor/inn/en	Levinoff, E.J.; Saumier, D.; Chertkow, H.
Titel	Focused Attention Deficits in Patients with Alzheimer's Disease and Mild Cognitive Impairment
Quelle	In: Brain and Cognition, 57 (2005) 2, S.127-130 (4 Seiten) PDF als Volltext Verfügbarkeit
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0278-2626
DOI	10.1016/j.bandc.2004.08.058
Schlagwörter	Patients; Identification; Cues; Alzheimers Disease; Reaction Time + Suchen Sie Ihr Suchwort? Patient; Identifikation; Identifizierung; Stichwort; Reaktionsvermögen
Abstract	Reaction time (RT) tasks take various forms, and can assess psychomotor speed, (i.e., simple reaction time task), and focused attention (i.e., choice reaction time (CRT) task). If cues are provided before stimulus presentation (i.e., cued choice reaction time (CCRT) task), then a cueing effect can also be assessed. A limited number of studies have addressed the nature of focused attention impairments in Alzheimer's disease (AD). Additionally, it is unknown whether similar impairments occur in Mild Cognitive Impairment (MCI). The current study used three RT tasks to address the nature of focused attention impairments in AD and MCI subjects. The results suggest that there were significant CRT and CCRT differences in AD subjects when compared to NECs. Furthermore, slowed RTs were also present in the MCI group, which provides evidence for impaired focussed attention and the inability to benefit from a cue in both the MCI and AD groups. The implications of the impairments related to the MCI group could potentially prove useful in early diagnosis of cognitive impairments in the elderly. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10