Age effects on semantic coherence: Latent semantic analysis applied to letter fluency data
Författare
Summary, in English
We investigated age-related changes in the semantic distance between successively generated words in two letter fluency tasks differing with respect to demands placed on executive control. The semantic distance was measured by Latent Semantic Analysis (LSA). The results show that older people have a larger semantic distance between successively generated items than young people, and that this effect is particularly pronounced in the more demanding fluency task. Taken together, our findings support the idea that elderly have a less distinct semantic network compared to young people while also demonstrating the feasibility of LSA as a powerful tool for delineating multifaceted aspects of semantic organization inherent in behavioural data from language production tasks.
Avdelning/ar
Publiceringsår
2009
Språk
Engelska
Sidor
73-76
Publikation/Tidskrift/Serie
[Host publication title missing]
Fulltext
- Available as PDF - 147 kB
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Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Psychology
Nyckelord
- latent semantic ananlysis
- cogni- tive aging
- semantic coherence
- letter fluency.
Conference name
SEMAPRO 09. The Third International Conference on Advances in Semantic Processing
Conference date
2009-10-11 - 2009-10-16
Conference place
Malta
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 978-0-7695-3833-4