Alterseffekte bei der erweiterten Form des Rivermead Behavioural Memory Tests (RBMT-E)
Abstract
Im Alter kommt es häufig zu Gedächtnisbeeinträchtigungen. Mit der erweiterten Form des Rivermead Behavioural Memory Tests (RBMT-E) existiert eine aktuelle Weiterentwicklung des RBMT, die es möglich machen soll, geringfügige Gedächtnisdefizite zu identifizieren. In der folgenden Untersuchung wurde der Frage nachgegangen, inwieweit der RBMT-E zwischen den Gedächtnisleistungen von jungen und älteren gesunden Personen in einer deutschen Stichprobe differenziert. Es wurden drei Altersgruppen (20-39, 40-59, 60-80 Jahre; N = 172) jeweils zur Hälfte mit Version 1 und Version 2 des RBMT-E untersucht. Beide Versionen waren hinsichtlich des Schwierigkeitsgrads der Untertests größtenteils vergleichbar. In Abhängigkeit vom Bildungsgrad war die Parallelität beider Versionen jedoch unzureichend. Die Untertests unterschieden sich teilweise in ihrem Potenzial zur Differenzierungsfähigkeit altersbedingter Gedächtnisveränderungen sowohl mit als auch ohne Berücksichtigung der Schulbildung. Die Untertests des RBMT-E zeigten sich allerdings sensitiv gegenüber Alterseffekten. Der Gesamtwert des RBMT-E ermöglichte ebenfalls eine sehr gute Differenzierung der altersbedingten Gedächtnisleistungen. Der RBMT-E ist somit eine sinnvolle Weiterentwicklung und Ergänzung des RBMT und erlaubt eine differenzierte Diagnostik altersassoziierter Gedächtnisveränderungen.
Normal aging is closely associated with memory changes. The extended version of the Rivermead Behavioural Memory Test (RBMT-E) was developed to identify subtle memory impairments. The goal of the present study was to investigate whether the RBMT-E differentiates between memory performance of younger and older participants in a German population. We investigated three age-groups (20-39, 40-59, 60-80 years; N = 172). Subjects were randomly assigned to either Version 1 or 2 of the RBMT-E. The total score of the RBMT-E allows a good differentiation of age related memory changes. Memory changes were partly dependent on level of education in some subtests. In summary, the RBMT-E is a useful revision of the RBMT which allows a good differentiation of age related memory changes.
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