Abstract:
OBJECTIVE:The present study aimed to investigate prospective memory (PM) in persons with mild cognitive impairment (MCI). METHOD:Twenty individuals with MCI (10 with an amnestic profile and 10 with a dysexecutive profile of cognitive impairment) and 20 control subjects (CS) were recruited. In the PM tasks, subjects had to execute three actions after 20 min had elapsed (time-based condition) or after a timer rang (event-based condition). Separate scores were computed for correct recall of the intention to perform the actions (prospective component) and for correct execution of the actions (retrospective component). RESULTS:Although individuals with MCI were less accurate than CS in both prospective (Cohen's d ranged from 1.04 to 2.23) and retrospective (Cohen's d ranged from 0.81 to 1.06) components of the experimental task, they were significantly more impaired in the former than the latter component (Cohen's d = 0.42). Moreover, the deficit in the prospective component of the time-based task was particularly evident in MCI participants presenting with a dysexecutive impairment in respect to amnestic MCI individuals (Cohen's d = 0.99). CONCLUSIONS:Results of the present study show that the ability of subjects with MCI to comply effectively with a planned delayed intention is impaired and suggest that dysexecutive disorders are likely responsible for this deficit.
journal_name
Neuropsychologyjournal_title
Neuropsychologyauthors
Costa A,Perri R,Serra L,Barban F,Gatto I,Zabberoni S,Caltagirone C,Carlesimo GAdoi
10.1037/a0018015subject
Has Abstractpub_date
2010-05-01 00:00:00pages
327-35issue
3eissn
0894-4105issn
1931-1559pii
2010-07896-005journal_volume
24pub_type
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