| The neural basis of analogical reasoning: an event-related potential study. | |
| | |
MedLine Citation:
|
PMID: 18602933 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The spatiotemporal analysis of brain activation during the execution of easy analogy (EA) and difficult analogy (DA) tasks was investigated using high-density event-related brain potentials (ERPs). Results showed that reasoning tasks (schema induction) elicited a more negative ERP deflection (N500-1000) than did the baseline task (BS) between 500 and 1000 ms. Dipole source analysis of difference waves (EA-BS and DA-BS) indicated that the negative components were both localized near the left thalamus, possibly associated with the retrieval of alphabetical information. Furthermore, DA elicited a more positive ERP component (P600-1000) than did EA in the same time window. Two generators of P600-1000 were located in the medial prefrontal cortex (BA10) and the left frontal cortex (BA6) which was possibly involved in integrating information in schema abstraction. In the stage of analogy mapping, a greater negativity (N400-600) in the reasoning tasks as compared to BS was found over fronto-central scalp regions. A generator of this effect was located in the left fusiform gyrus and was possibly related to associative memory and activation of schema. Then, a greater negativity in the reasoning tasks, in comparison to BS task, developed between 900-1200 ms (LNC1) and 2000-2500 ms (LNC2). Dipole source analysis (EA-BS) localized the generator of LNC1 in the left prefrontal cortex (BA 10) which was possibly related to mapping the schema to the target problem, and the generator of LNC2 in the left prefrontal cortex (BA 9) which was possibly related to deciding whether a conclusion correctly follows from the schema. |
| | |
Authors:
|
Jiang Qiu; Hong Li; Antao Chen; Qinglin Zhang |
Related Documents
:
|
9028023 - Event-related potentials differentiate the effects of aging on word and nonword repetit... 8513143 - Effects of transient spatial attention on auditory event-related potentials. 21747773 - Why would musical training benefit the neural encoding of speech? the opera hypothesis. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-06-18 |
Journal Detail:
|
Title: Neuropsychologia Volume: 46 ISSN: 0028-3932 ISO Abbreviation: Neuropsychologia Publication Date: 2008 Oct |
Date Detail:
|
Created Date: 2008-08-04 Completed Date: 2008-10-21 Revised Date: 2009-11-11 |
Medline Journal Info:
|
Nlm Unique ID: 0020713 Medline TA: Neuropsychologia Country: England |
Other Details:
|
Languages: eng Pagination: 3006-13 Citation Subset: IM |
Affiliation:
|
Key Laboratory of Cognition and Personality SWU, Ministry of Education, Chongqing, China. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Association Learning / physiology Brain Mapping* Cerebral Cortex / physiology* Concept Formation / physiology* Discrimination (Psychology) / physiology Evoked Potentials Female Humans Magnetic Resonance Imaging Male Mental Processes / physiology* Problem Solving / physiology* Reference Values |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The selective delta opioid agonist SNC80 enhances amphetamine-mediated efflux of dopamine from rat s...
Next Document: Functional reorganization of the human auditory pathways following hemispherectomy: an fMRI demonstr...