| Flexible transfer of knowledge in mental arithmetic--an fMRI study. | |
| | |
MedLine Citation:
|
PMID: 19027075 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Recent imaging studies could show that fact acquisition in arithmetic is associated with decreasing activation in several frontal and parietal areas, and relatively increasing activation within the angular gyrus, indicating a switch from direct calculation to retrieval of a learned fact from memory. So far, however, little is known about the transfer of learned facts between arithmetic operations. The aim of the present fMRI study was to investigate whether and how newly acquired arithmetic knowledge might transfer from trained multiplication problems to related division problems. On the day before scanning, ten complex multiplication problems were trained. Within the scanner, trained multiplication problems were compared with untrained multiplication problems, and division problems related to multiplication (transfer condition) were compared with unrelated division problems (no-transfer condition). Replicating earlier results, untrained multiplication problems activated several frontal and parietal brain areas more strongly than trained multiplication problems, while trained multiplication problems showed relatively stronger activation in the left angular gyrus than untrained multiplication problems. Concerning division, an ROI analysis indicated that activation in the left angular gyrus was relatively stronger for the transfer condition than for the no-transfer condition. We also observed distinct inter-individual differences with regard to transfer that modulated activation within the left angular gyrus. Activation within the left angular gyrus was generally higher for participants who showed a transfer effect for division problems. In conclusion, the present study yielded some evidence that successful transfer of knowledge between arithmetic operations is accompanied by modifications of brain activation patterns. The left angular gyrus seems not only to be involved in the retrieval of stored arithmetic facts, but also in the transfer between arithmetic operations. |
| | |
Authors:
|
Anja Ischebeck; Laura Zamarian; Michael Schocke; Margarete Delazer |
Related Documents
:
|
9594035 - The difficult cholecystectomy: problems during dissection and extraction. 22245865 - Role of average speed in n(2)o exhaust emissions as greenhouse gas in a huge urban zone... 16468845 - Generalizations of the hohenberg-kohn theorem: i. legendre transform constructions of v... 11001555 - Adaptive linkage crossover. 17125785 - Satisfaction with communicative participation as defined by adults with multiple sclero... 10227105 - Problem-solving and spatial working memory in patients with schizophrenia and with foca... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-11-05 |
Journal Detail:
|
Title: NeuroImage Volume: 44 ISSN: 1095-9572 ISO Abbreviation: Neuroimage Publication Date: 2009 Feb |
Date Detail:
|
Created Date: 2008-12-22 Completed Date: 2009-02-19 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9215515 Medline TA: Neuroimage Country: United States |
Other Details:
|
Languages: eng Pagination: 1103-12 Citation Subset: IM |
Affiliation:
|
Section of Applied Neuropsychology, Institute for Psychology, University of Graz, Austria. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Brain / physiology* Cognition / physiology* Female Health Knowledge, Attitudes, Practice* Humans Learning / physiology* Magnetic Resonance Imaging / methods* Male Mathematics* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Modeling neuro-vascular coupling in rat cerebellum: characterization of deviations from linearity.
Next Document: Regional DTI differences in multiple sclerosis patients.