ApraxiaFromWikipedia,thefreeencyclopediaJumptonavigationJumptosearchMedicalconditionApraxiaApraxiaischaracterizedbylossoftheabilitytoexecuteorcarryoutlearnedpurposefulmovementsSpecialtyNeurology,PsychiatryTreatmentPhysicaltherapyApraxiaisamotordisordercausedbydamagetothebrain(specificallytheposteriorparietalcortexorcorpuscallosum[1])inwhichtheindividualhasdifficultywiththemotorplanningtoperformtasksormovementswhenasked,providedthattherequestorcommandisunderstoodandtheindividualiswillingtoperformthetask.Thenatureofthebraindamagedeterminestheseverity,andtheabsenceofsensorylossorparalysishelpstoexplainthelevelofdifficulty.[2]Somechildrenmaybebornwithapraxiaalthoughthecauseisunknown.Symptomsareusuallynoticedintheearlystagesoflifeasthechilddevelops.Apraxiathatresultsfromabraininjuryoraneurodegenerativeillnessisknownasacquiredapraxia.Acquiredapraxiaistypicallycausedbyatraumaticbraininjury,stroke,dementia,Alzheimer'sdisease,braintumor,andotherneurodegenerativedisorders.[3]Therearemultipletypesofapraxiaandarecategorizedbywhatspecificabilityorbodypartisaffected.ThetermcomesfromtheGreekἀ-a-("without")andπρᾶξιςpraxis("action").[4]Contents1Types2Causes3Diagnosis4Treatment5Prognosis6Seealso7References8Furtherreading9ExternallinksTypes[edit]Thereareseveraltypesofapraxiaincluding:Apraxiaofspeech(AOS):Difficultyplanningandcoordinatingthemovementsnecessaryforspeech(e.g.Potato=Totapo,Topato).[5]AOScanindependentlyoccurwithoutissuesinareassuchasverbalcomprehension,readingcomprehension,writing,articulationorprosody.[6]Buccofacialororofacialapraxia:Thisisthemostcommontypeofapraxiaandistheinabilitytocarryoutfacialmovementsondemand.Forexample,aninabilitytolickone'slips,wink,orwhistlewhenrequestedtodoso.Thissuggestsaninabilitytocarryoutvolitionalmovementsofthetongue,cheeks,lips,pharynx,orlarynxoncommand.[7][8]Constructionalapraxia:Theinabilitytodraw,construct,orcopysimpleconfigurations,suchasintersectingshapes.Thesepatientshavedifficultycopyingasimplediagramordrawingbasicshapes.[7]Gaitapra