American Journal of Dance Therapy

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Hemispheric specialization in spontaneous gesticulation in a patient with callosal disconnection

Identifieur interne : 000163 ( Main/Corpus ); précédent : 000162; suivant : 000164

Hemispheric specialization in spontaneous gesticulation in a patient with callosal disconnection

Auteurs : Hedda Lausberg ; Martha Davis ; Angela Rothenh Usler

Source :

RBID : ISTEX:1FF6CFF04D983990C619F11E5A28F5E0D2EF4CF4

English descriptors

Abstract

This is an investigation of spontaneous gesticulation in a left-handed patient with a callosal disconnection syndrome due to infarction of the total length of the corpus callosum. After callosal infarction, the patient gesticulated predominantly unilaterally with the left hand despite left apraxia. Bilateral gesticulation occurred later on and was presumably achieved by an increase in ipsilateral proximal control. Movement analysis further indicated that the two hemispheres are specialized for certain gesture types. Gestures with emotional connotation and batons (emphasizing prosody) were generated predominantly in the right hemisphere whereas physiographics which picture the linguistic content concretely and deictics (pointing) were of left-hemispheric origin.

Url:
DOI: 10.1016/S0028-3932(00)00071-3

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ISTEX:1FF6CFF04D983990C619F11E5A28F5E0D2EF4CF4

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<note type="content">Fig. 1: Percentage of unilateral left (uni-left), unilateral right (uni-right), bilateral gestures (bilateral) and gesturing with folded hands (folded) at two (T1), five (T2) and nine (T3) months after callosal infarction.</note>
<note type="content">Fig. 2: Number of bilateral hand gestures with no distal motions (bi-n.d.), bilateral-left-dominant (bi-left), bilateral-right-dominant (bi-right) and bilateral-dyssynchronous (bi-dys) hand gestures, summed up across T1, T2, and T3.</note>
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<abstract lang="en">This is an investigation of spontaneous gesticulation in a left-handed patient with a callosal disconnection syndrome due to infarction of the total length of the corpus callosum. After callosal infarction, the patient gesticulated predominantly unilaterally with the left hand despite left apraxia. Bilateral gesticulation occurred later on and was presumably achieved by an increase in ipsilateral proximal control. Movement analysis further indicated that the two hemispheres are specialized for certain gesture types. Gestures with emotional connotation and batons (emphasizing prosody) were generated predominantly in the right hemisphere whereas physiographics which picture the linguistic content concretely and deictics (pointing) were of left-hemispheric origin. </abstract>
<note type="content">Fig. 1: Percentage of unilateral left (uni-left), unilateral right (uni-right), bilateral gestures (bilateral) and gesturing with folded hands (folded) at two (T1), five (T2) and nine (T3) months after callosal infarction.</note>
<note type="content">Fig. 2: Number of bilateral hand gestures with no distal motions (bi-n.d.), bilateral-left-dominant (bi-left), bilateral-right-dominant (bi-right) and bilateral-dyssynchronous (bi-dys) hand gestures, summed up across T1, T2, and T3.</note>
<note type="content">Fig. 3: Number of unilateral-left and unilateral-right gestures for each gesture type, summed up across T1, T2, and T3.</note>
<note type="content">Fig. 4: Number of bilateral-left-dominant and bilateral-right-dominant hand gestures for each gesture type, summed up across T1, T2, and T3.</note>
<subject lang="en">
<genre>Keywords</genre>
<topic>Callosal disconnection</topic>
<topic>Gesticulation</topic>
<topic>Hemispheric specialization</topic>
<topic>Left-handedness</topic>
<topic>Nonverbal communication</topic>
<topic>Apraxia</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Neuropsychologia</title>
</titleInfo>
<titleInfo type="abbreviated">
<title>NSY</title>
</titleInfo>
<originInfo>
<dateIssued encoding="w3cdtf">200010</dateIssued>
</originInfo>
<identifier type="ISSN">0028-3932</identifier>
<identifier type="PII">S0028-3932(00)X0072-3</identifier>
<part>
<date>2000</date>
<detail type="volume">
<number>38</number>
<caption>vol.</caption>
</detail>
<detail type="issue">
<number>12</number>
<caption>no.</caption>
</detail>
<extent unit="issue pages">
<start>1553</start>
<end>1668</end>
</extent>
<extent unit="pages">
<start>1654</start>
<end>1663</end>
</extent>
</part>
</relatedItem>
<identifier type="istex">1FF6CFF04D983990C619F11E5A28F5E0D2EF4CF4</identifier>
<identifier type="DOI">10.1016/S0028-3932(00)00071-3</identifier>
<identifier type="PII">S0028-3932(00)00071-3</identifier>
<recordInfo>
<recordOrigin>ELSEVIER</recordOrigin>
<recordContentSource>Elsevier Science Ltd, ©2000</recordContentSource>
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