Broca27s and Wernicke27saphasia

Broca sandWernicke saphasia Broca saphasia fe 布罗卡氏失语症 Broca saphasia alsokonwnascognitiveneuropsychology 认知神经心理学 andexpressiveaphasia non fluentaphasia 表达性失语症 iscausedbydamagetoordevelopmentalissuesinanterior 位于前部的 regionsofthebrain includingtheleftposteriorinferiorfrontalgyrus 回转 knownasBroca sarea Expressiveaphasiaisonesubsetofalargerfamilyofdisordersknowncollectivelyasaphasia Itischaracterizedbythelossoftheabilitytoproducelanguage spokenorwritten CausesofBroca saphasia TworeasonsofBroca saphasia1 Themostcommoncauseofexpressiveaphasiaisstroke 中风 Astrokeiscausedbyhypoperfusion lackofoxygen toanareaofthebrain whichiscommonlycausedbythrombosis 血栓 orembolism 栓塞 CausesofBroca saphasia 2 Expressiveaphasiacanalsobecausedbytrauma 损伤 tothebrain tumor 肿瘤 cerebralhemorrhage 脑出血 byextraduralhematoma 脑膜外血肿 PresentationofBroca saphasia 1 Sufferersofthisformofaphasiaexhibitthecommonproblemofagrammatism 语法缺失 Forthem speechisdifficulttoinitiate non fluent andhalting Writingisdifficult aswell Intonationandstresspatternsaredeficient Languageisreducedtodisjointedwords andsentenceconstructionispoor omittingfunctionwordsandinflections PresentationofBroca saphasia Forexample inthefollowingpassage aBroca saphasicpatientistryingtoexplainhowhecametothehospitalfordentalsurgery Yes ah Monday er DadandPeterH hisownname andDad er hospital andah Wednesday Wednesday nineo clock andoh Thursday teno clock ahdoctors two an doctors ander teeth Yah PresentationofBroca saphasia 2 Whilewordcomprehensionisgenerallypreserved meaninginterpretationdependentonsyntaxandphrasestructureissubstantiallyimpaired Thiscanbedemonstratedbyusingphraseswithunusualstructures AtypicalBroca saphasicpatientwillmisinterpret thedogisbittenbytheman byswitchingthesubjectandobject Patientswhorecovergoontosaythattheyknewwhattheywantedtosaybutcouldnotexpressthemselves Residualdeficitswilloftenbeseen Wernicke saphasia 韦尼克氏失语 Wernicke saphasia alsoknownasreceptiveaphasia 感觉性失语症 fluentaphasia isatypeofaphasiatraditionallyassociatedwithneurologicaldamagetoWernicke sareainthebrain However thekeydeficitsofreceptiveaphasiadonotcomefromdamagetoWernicke sarea instead mostofthecoredifficultiesareproposedtocomefromdamagetothemedialtemporallobe 内侧颞叶 andunderlyingwhitematter 白质 Wernicke saphasia Damageinthisareanotonlydestroyslocallanguageregionsbutalsocutsoffmostoftheoccipital 枕骨的 temporal andparietal 顶骨的 regionsfromthecorelanguageregion Peoplewithreceptiveaphasiacanspeakwithnormalgrammar syntax rate intonation andstress buttheyareunabletounderstandlanguageinitswrittenorspokenform RepresentationofWernicke saphasia Apersonwiththisaphasiaspeaksnormallybutusesrandomorinventedwords leavesoutkeywords substituteswordsorverbtenses pronouns orprepositions andutterssentencesthatdonotmakesense Theycanalsohaveatendencytotalkexcessively RepresentationofWernicke saphasia Apersonwiththisaphasiacannotunderstandthespokenwordsofothersorreadwrittenwords Speechispreserved butlanguagecontentisincorrect Substitutionsofonewordforanother paraphasias e g telephone for television arecommon Comprehensionandrepetitionarepoor RepresentationofWernicke saphasia ThesymptomsofWernicke sAphasiarevealhowimportantlanguageisbecausepeoplewi