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Article: Memory deficits after resection from left or right anterior temporal lobe in humans: A meta-analytic review

TitleMemory deficits after resection from left or right anterior temporal lobe in humans: A meta-analytic review
Authors
KeywordsDissociation
Epilepsy
Memory
Meta-analysis
Temporal lobectomy
Issue Date2002
PublisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.epilepsia.com/
Citation
Epilepsia, 2002, v. 43 n. 3, p. 283-291 How to Cite?
AbstractPurpose: Memory deficits in epileptic patients have been found in some, but not all studies assessing the effects of side of seizures and resection from a temporal lobe on cognitive performance. The purpose of this study was to provide a quantitative review of previous studies on this issue. Methods: Based on conventional meta-analytic procedures, we identified 33 studies that assessed verbal and nonverbal memory performance before and after anterior temporal lobectomy. The Logical Memory and Visual Reproduction subtests from the Wechsler Memory Scale were used. These studies were then subjected to two levels of analyses: (a) vote-counting procedure, and (b) effect-size calculations and comparisons. Results: Overall, the data confirmed previous findings that verbal memory tasks are sensitive to left hemisphere dysfunction. The efficacy of a "nonverbal" task for tapping function in the nondominant (right) hemisphere was not confirmed, although a trend supporting this speculation was observed. With regard to the comparison of changes in verbal and nonverbal memory before and after resection from a temporal lobe, a clear trend was observed for decline in verbal memory function after resection from the left, especially significant for immediate verbal recall. A trend for contralateral improvement on non-verbal memory also was observed. The pattern of memory change after resection from the right temporal lobe was less clear. Conclusions: The findings of this study suggest that side of epileptic seizure and surgical resection from a temporal lobe affect verbal memory functions. The relations between the laterality of epileptic seizure, surgical resection from the temporal lobe, and nonverbal memory are to be verified by further research.
Persistent Identifierhttp://hdl.handle.net/10722/89388
ISSN
2015 Impact Factor: 4.706
2015 SCImago Journal Rankings: 2.579
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLee, TMCen_HK
dc.contributor.authorYip, JTHen_HK
dc.contributor.authorJonesGotman, Men_HK
dc.date.accessioned2010-09-06T09:56:23Z-
dc.date.available2010-09-06T09:56:23Z-
dc.date.issued2002en_HK
dc.identifier.citationEpilepsia, 2002, v. 43 n. 3, p. 283-291en_HK
dc.identifier.issn0013-9580en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89388-
dc.description.abstractPurpose: Memory deficits in epileptic patients have been found in some, but not all studies assessing the effects of side of seizures and resection from a temporal lobe on cognitive performance. The purpose of this study was to provide a quantitative review of previous studies on this issue. Methods: Based on conventional meta-analytic procedures, we identified 33 studies that assessed verbal and nonverbal memory performance before and after anterior temporal lobectomy. The Logical Memory and Visual Reproduction subtests from the Wechsler Memory Scale were used. These studies were then subjected to two levels of analyses: (a) vote-counting procedure, and (b) effect-size calculations and comparisons. Results: Overall, the data confirmed previous findings that verbal memory tasks are sensitive to left hemisphere dysfunction. The efficacy of a "nonverbal" task for tapping function in the nondominant (right) hemisphere was not confirmed, although a trend supporting this speculation was observed. With regard to the comparison of changes in verbal and nonverbal memory before and after resection from a temporal lobe, a clear trend was observed for decline in verbal memory function after resection from the left, especially significant for immediate verbal recall. A trend for contralateral improvement on non-verbal memory also was observed. The pattern of memory change after resection from the right temporal lobe was less clear. Conclusions: The findings of this study suggest that side of epileptic seizure and surgical resection from a temporal lobe affect verbal memory functions. The relations between the laterality of epileptic seizure, surgical resection from the temporal lobe, and nonverbal memory are to be verified by further research.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing, Inc.. The Journal's web site is located at http://www.epilepsia.com/en_HK
dc.relation.ispartofEpilepsiaen_HK
dc.subjectDissociationen_HK
dc.subjectEpilepsyen_HK
dc.subjectMemoryen_HK
dc.subjectMeta-analysisen_HK
dc.subjectTemporal lobectomyen_HK
dc.titleMemory deficits after resection from left or right anterior temporal lobe in humans: A meta-analytic reviewen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0013-9580&volume=43&spage=283&epage=291&date=2002&atitle=Memory+deficits+after+resection+from+left+or+right+anterior+temporal+lobe+in+humans:+A+meta-analytic+reviewen_HK
dc.identifier.emailLee, TMC:tmclee@hku.hken_HK
dc.identifier.authorityLee, TMC=rp00564en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1528-1157.2002.09901.xen_HK
dc.identifier.pmid11906514-
dc.identifier.scopuseid_2-s2.0-0036203554en_HK
dc.identifier.hkuros82882en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036203554&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume43en_HK
dc.identifier.issue3en_HK
dc.identifier.spage283en_HK
dc.identifier.epage291en_HK
dc.identifier.isiWOS:000174557800011-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLee, TMC=7501437381en_HK
dc.identifier.scopusauthoridYip, JTH=7006651184en_HK
dc.identifier.scopusauthoridJonesGotman, M=7003996070en_HK

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