Age-related deficits of manual grasping in a laboratory versus in an everyday-like setting
Deutscher übersetzter Titel: | Altersbedingte Defizite bei Greifbewegungen im Vergleich von Laborumgebung zu Alltagsumfeld |
---|---|
Autor: | Bock, Otmar Leo; Steinberg, Fabian |
Erschienen in: | Ageing research |
Veröffentlicht: | 3 (2012), 1, S. 48-52, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 2036-7376, 2036-7384 |
DOI: | 10.4081/ar.2012.e7 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201409009122 |
Quelle: | BISp |
Abstract des Autors
This study compared the grasping performance of 24 younger (20-30 years of age) and 24 older subjects (60-70 years of age) in a typical laboratory task (L) where movements were repetitive, externally triggered, purposeless and attention-attracting, and in an everyday-like task (E) where movements were part of a rich behavioral repertoire, internally initiated, purposive and little attended. We registered a wide range of kinematic and force parameters, and calculated their within-subject means and variation coefficients. Multiple differences emerged between the parameter values in L and E. Factor analysis reduced them to five independent effects. We also found multiple differences between the two age groups, with seniors responding more slowly and in a more stereotyped fashion.
Multiple significant task x age interactions emerged as well, with age differences being more pronounced in E than in L. The latter finding is of practical relevance,
since it suggests that age-related deficits in some real-life situations may be underestimated in laboratory research. It also is of theoretical relevance: it indicates that brain regions which are particularly vulnerable to aging may contribute to task E more than to task L. Verf.-Referat