ELECTROPALATOGRAPHIC ANALYSIS OF APRAXIA OF SPEECH IN A LEFT HANDER AND IN A RIGHT HANDER
Two cases with ‘pure’ apraxia of speech are reported. The articulatory disturbances were quite similar. One of the two cases was a left-handed male with a subcortical haemorrhage and the other a right-handed male with a cerebral infaret. The MRI and CT scans showed that the first case had a lesion t...
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Veröffentlicht in: | Brain (London, England : 1878) England : 1878), 1987-10, Vol.110 (5), p.1393-1417 |
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description | Two cases with ‘pure’ apraxia of speech are reported. The articulatory disturbances were quite similar. One of the two cases was a left-handed male with a subcortical haemorrhage and the other a right-handed male with a cerebral infaret. The MRI and CT scans showed that the first case had a lesion that mainly involved the right precentral gyrus and its deep white matter, and that the second had a lesion mainly affecting the lower parts of the left precentral and postcentral gyri and their deep white matter. These findings and a literature review suggest that a corticosubcortical lesion of the lower part of the left precentral gyrus in most right handers and a lesion of the symmetric region in the right hemisphere in some left handers cause apraxia of speech. The omission errors for sounds articulated by the tongue and the hard palate were analysed using electropalatography, which records visually the dynamics of the palatolingual contact. The results demonstrated that there were three kinds of omission errors: true omissions (no palatolingual contact); omissions with incorrect contact (palatolingual contact for a different sound or undifferentiated sound); and omissions with correct contact (correct palatolngual contact for a target sound). The latter two types of omission error were observed for initial consonants and thery were probably caused by a delay in air flow. The patients also showed a tendency to substitute one of the two consonants /t, t⊺/ for other sounds, which suggested that they had difficulty in the inhibition of tongue activity. |
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The articulatory disturbances were quite similar. One of the two cases was a left-handed male with a subcortical haemorrhage and the other a right-handed male with a cerebral infaret. The MRI and CT scans showed that the first case had a lesion that mainly involved the right precentral gyrus and its deep white matter, and that the second had a lesion mainly affecting the lower parts of the left precentral and postcentral gyri and their deep white matter. These findings and a literature review suggest that a corticosubcortical lesion of the lower part of the left precentral gyrus in most right handers and a lesion of the symmetric region in the right hemisphere in some left handers cause apraxia of speech. The omission errors for sounds articulated by the tongue and the hard palate were analysed using electropalatography, which records visually the dynamics of the palatolingual contact. The results demonstrated that there were three kinds of omission errors: true omissions (no palatolingual contact); omissions with incorrect contact (palatolingual contact for a different sound or undifferentiated sound); and omissions with correct contact (correct palatolngual contact for a target sound). The latter two types of omission error were observed for initial consonants and thery were probably caused by a delay in air flow. The patients also showed a tendency to substitute one of the two consonants /t, t⊺/ for other sounds, which suggested that they had difficulty in the inhibition of tongue activity.</description><identifier>ISSN: 0006-8950</identifier><identifier>EISSN: 1460-2156</identifier><identifier>DOI: 10.1093/brain/110.5.1393</identifier><identifier>PMID: 3676707</identifier><identifier>CODEN: BRAIAK</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Adult ; Apraxias - diagnostic imaging ; Apraxias - pathology ; Apraxias - physiopathology ; Biological and medical sciences ; Brain - diagnostic imaging ; Brain - pathology ; Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes ; Electrophysiology ; Functional Laterality ; Humans ; Magnetic Resonance Imaging ; Male ; Medical sciences ; Middle Aged ; Nervous system (semeiology, syndromes) ; Neurology ; Palate - physiopathology ; Phonetics ; Speech Articulation Tests ; Speech Disorders - physiopathology ; Tomography, X-Ray Computed</subject><ispartof>Brain (London, England : 1878), 1987-10, Vol.110 (5), p.1393-1417</ispartof><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-eb373b5d872c68506f0f9ac81f301009e64c86809e0f9de0c3957bbe784ebe213</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7514711$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/3676707$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>SUGISHITA, MORIHIRO</creatorcontrib><creatorcontrib>KONNO, KANAE</creatorcontrib><creatorcontrib>KABE, SUMIE</creatorcontrib><creatorcontrib>YUNOKI, KAZUTA</creatorcontrib><creatorcontrib>TOGASHI, OSAMU</creatorcontrib><creatorcontrib>KAWAMURA, MITSURU</creatorcontrib><title>ELECTROPALATOGRAPHIC ANALYSIS OF APRAXIA OF SPEECH IN A LEFT HANDER AND IN A RIGHT HANDER</title><title>Brain (London, England : 1878)</title><addtitle>Brain</addtitle><description>Two cases with ‘pure’ apraxia of speech are reported. The articulatory disturbances were quite similar. One of the two cases was a left-handed male with a subcortical haemorrhage and the other a right-handed male with a cerebral infaret. The MRI and CT scans showed that the first case had a lesion that mainly involved the right precentral gyrus and its deep white matter, and that the second had a lesion mainly affecting the lower parts of the left precentral and postcentral gyri and their deep white matter. These findings and a literature review suggest that a corticosubcortical lesion of the lower part of the left precentral gyrus in most right handers and a lesion of the symmetric region in the right hemisphere in some left handers cause apraxia of speech. The omission errors for sounds articulated by the tongue and the hard palate were analysed using electropalatography, which records visually the dynamics of the palatolingual contact. The results demonstrated that there were three kinds of omission errors: true omissions (no palatolingual contact); omissions with incorrect contact (palatolingual contact for a different sound or undifferentiated sound); and omissions with correct contact (correct palatolngual contact for a target sound). The latter two types of omission error were observed for initial consonants and thery were probably caused by a delay in air flow. The patients also showed a tendency to substitute one of the two consonants /t, t⊺/ for other sounds, which suggested that they had difficulty in the inhibition of tongue activity.</description><subject>Adult</subject><subject>Apraxias - diagnostic imaging</subject><subject>Apraxias - pathology</subject><subject>Apraxias - physiopathology</subject><subject>Biological and medical sciences</subject><subject>Brain - diagnostic imaging</subject><subject>Brain - pathology</subject><subject>Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes</subject><subject>Electrophysiology</subject><subject>Functional Laterality</subject><subject>Humans</subject><subject>Magnetic Resonance Imaging</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neurology</subject><subject>Palate - physiopathology</subject><subject>Phonetics</subject><subject>Speech Articulation Tests</subject><subject>Speech Disorders - physiopathology</subject><subject>Tomography, X-Ray Computed</subject><issn>0006-8950</issn><issn>1460-2156</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkEtPwzAQhC0EglK4c0HKAXELXcfxI0crpE2kqI3SIgEXy0kdKdAHxK0E_x6Xll45eT3zzUo7CN1geMAQkUHV6XY1wO5LHzCJyAnq4ZCBH2DKTlEPAJgvIgoX6NLaNwAckoCdo3PCOOPAe-glyZN4Vk4KmcvZZFTKIs1iT45l_jLNpt5k6MmilM-Z3I3TIkni1MvGnvTyZDjzUjl-TEqHP-7FMhulf-oVOmv0wprrw9tHT8NkFqd-Phllscz9mkTBxjcV4aSic8GDmgkKrIEm0rXADQEMEBkW1oIJNzh9bsClKK8qw0VoKhNg0kf3-70f3fpza-xGLVtbm8VCr8x6a5WgYURIEP4PuhoFAXAg7MG6W1vbmUZ9dO1Sd98Kg9rVrn5rV45XVO1qd5Hbw-5ttTTzY-DQs_PvDr62tV40nV7VrT1inOKQ490t_h5r7cZ8HW3dvSvGCacqfX5VLIVCFGysQvID2bWQog</recordid><startdate>19871001</startdate><enddate>19871001</enddate><creator>SUGISHITA, MORIHIRO</creator><creator>KONNO, KANAE</creator><creator>KABE, SUMIE</creator><creator>YUNOKI, KAZUTA</creator><creator>TOGASHI, OSAMU</creator><creator>KAWAMURA, MITSURU</creator><general>Oxford University Press</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7T9</scope></search><sort><creationdate>19871001</creationdate><title>ELECTROPALATOGRAPHIC ANALYSIS OF APRAXIA OF SPEECH IN A LEFT HANDER AND IN A RIGHT HANDER</title><author>SUGISHITA, MORIHIRO ; KONNO, KANAE ; KABE, SUMIE ; YUNOKI, KAZUTA ; TOGASHI, OSAMU ; KAWAMURA, MITSURU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-eb373b5d872c68506f0f9ac81f301009e64c86809e0f9de0c3957bbe784ebe213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>Adult</topic><topic>Apraxias - diagnostic imaging</topic><topic>Apraxias - pathology</topic><topic>Apraxias - physiopathology</topic><topic>Biological and medical sciences</topic><topic>Brain - diagnostic imaging</topic><topic>Brain - pathology</topic><topic>Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes</topic><topic>Electrophysiology</topic><topic>Functional Laterality</topic><topic>Humans</topic><topic>Magnetic Resonance Imaging</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neurology</topic><topic>Palate - physiopathology</topic><topic>Phonetics</topic><topic>Speech Articulation Tests</topic><topic>Speech Disorders - physiopathology</topic><topic>Tomography, X-Ray Computed</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>SUGISHITA, MORIHIRO</creatorcontrib><creatorcontrib>KONNO, KANAE</creatorcontrib><creatorcontrib>KABE, SUMIE</creatorcontrib><creatorcontrib>YUNOKI, KAZUTA</creatorcontrib><creatorcontrib>TOGASHI, OSAMU</creatorcontrib><creatorcontrib>KAWAMURA, MITSURU</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Linguistics and Language Behavior Abstracts (LLBA)</collection><jtitle>Brain (London, England : 1878)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SUGISHITA, MORIHIRO</au><au>KONNO, KANAE</au><au>KABE, SUMIE</au><au>YUNOKI, KAZUTA</au><au>TOGASHI, OSAMU</au><au>KAWAMURA, MITSURU</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>ELECTROPALATOGRAPHIC ANALYSIS OF APRAXIA OF SPEECH IN A LEFT HANDER AND IN A RIGHT HANDER</atitle><jtitle>Brain (London, England : 1878)</jtitle><addtitle>Brain</addtitle><date>1987-10-01</date><risdate>1987</risdate><volume>110</volume><issue>5</issue><spage>1393</spage><epage>1417</epage><pages>1393-1417</pages><issn>0006-8950</issn><eissn>1460-2156</eissn><coden>BRAIAK</coden><abstract>Two cases with ‘pure’ apraxia of speech are reported. The articulatory disturbances were quite similar. One of the two cases was a left-handed male with a subcortical haemorrhage and the other a right-handed male with a cerebral infaret. The MRI and CT scans showed that the first case had a lesion that mainly involved the right precentral gyrus and its deep white matter, and that the second had a lesion mainly affecting the lower parts of the left precentral and postcentral gyri and their deep white matter. These findings and a literature review suggest that a corticosubcortical lesion of the lower part of the left precentral gyrus in most right handers and a lesion of the symmetric region in the right hemisphere in some left handers cause apraxia of speech. The omission errors for sounds articulated by the tongue and the hard palate were analysed using electropalatography, which records visually the dynamics of the palatolingual contact. The results demonstrated that there were three kinds of omission errors: true omissions (no palatolingual contact); omissions with incorrect contact (palatolingual contact for a different sound or undifferentiated sound); and omissions with correct contact (correct palatolngual contact for a target sound). The latter two types of omission error were observed for initial consonants and thery were probably caused by a delay in air flow. The patients also showed a tendency to substitute one of the two consonants /t, t⊺/ for other sounds, which suggested that they had difficulty in the inhibition of tongue activity.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><pmid>3676707</pmid><doi>10.1093/brain/110.5.1393</doi><tpages>25</tpages></addata></record> |
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subjects | Adult Apraxias - diagnostic imaging Apraxias - pathology Apraxias - physiopathology Biological and medical sciences Brain - diagnostic imaging Brain - pathology Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes Electrophysiology Functional Laterality Humans Magnetic Resonance Imaging Male Medical sciences Middle Aged Nervous system (semeiology, syndromes) Neurology Palate - physiopathology Phonetics Speech Articulation Tests Speech Disorders - physiopathology Tomography, X-Ray Computed |
title | ELECTROPALATOGRAPHIC ANALYSIS OF APRAXIA OF SPEECH IN A LEFT HANDER AND IN A RIGHT HANDER |
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