Anosognosia and confabulation during the Wada test
Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selec...
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| Veröffentlicht in: | Neurology 1997-11, Vol.49 (5), p.1316-1322 |
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| container_title | Neurology |
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| creator | LU, L. H BARRETT, A. M SCHWARTZ, R. L CIBULA, J. E GILMORE, R. L UTHMAN, B. M HEILMAN, K. M |
| description | Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selective anesthesia of the cerebral hemispheres. Seventeen patients with intractable epilepsy were tested during intracarotid methohexital infusion. For half of the trials, subjects were stimulated on their paretic hand with a material (sandpaper, metal, or cloth), and for the remaining trials they were not stimulated. The subjects were trained to use a pointing response to indicate if they been stimulated and the type of material they had felt. Admission of uncertainty was defined as pointing to a question mark. Confabulation was defined as any material response to a no-touch trial. During anesthesia of either hemisphere, subjects with and without AHP confabulated responses. The AHP and non-AHP groups did not differ in admission of uncertainty. Our results support the postulate that confabulation and AHP are independent disorders, and therefore confabulation cannot fully account for AHP. |
| doi_str_mv | 10.1212/WNL.49.5.1316 |
| format | Article |
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H ; BARRETT, A. M ; SCHWARTZ, R. L ; CIBULA, J. E ; GILMORE, R. L ; UTHMAN, B. M ; HEILMAN, K. M</creator><creatorcontrib>LU, L. H ; BARRETT, A. M ; SCHWARTZ, R. L ; CIBULA, J. E ; GILMORE, R. L ; UTHMAN, B. M ; HEILMAN, K. M</creatorcontrib><description>Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selective anesthesia of the cerebral hemispheres. Seventeen patients with intractable epilepsy were tested during intracarotid methohexital infusion. For half of the trials, subjects were stimulated on their paretic hand with a material (sandpaper, metal, or cloth), and for the remaining trials they were not stimulated. The subjects were trained to use a pointing response to indicate if they been stimulated and the type of material they had felt. Admission of uncertainty was defined as pointing to a question mark. Confabulation was defined as any material response to a no-touch trial. During anesthesia of either hemisphere, subjects with and without AHP confabulated responses. The AHP and non-AHP groups did not differ in admission of uncertainty. Our results support the postulate that confabulation and AHP are independent disorders, and therefore confabulation cannot fully account for AHP.</description><identifier>ISSN: 0028-3878</identifier><identifier>EISSN: 1526-632X</identifier><identifier>DOI: 10.1212/WNL.49.5.1316</identifier><identifier>PMID: 9371915</identifier><identifier>CODEN: NEURAI</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams & Wilkins</publisher><subject>Adolescent ; Adult ; Aged ; Agnosia - physiopathology ; Agnosia - psychology ; Anesthetics, Intravenous ; Biological and medical sciences ; Carotid Arteries ; Dominance, Cerebral - physiology ; Epilepsy - diagnosis ; Epilepsy - physiopathology ; Epilepsy - psychology ; Fantasy ; Female ; Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy ; Humans ; Injections, Intra-Arterial ; Male ; Medical sciences ; Memory Disorders - physiopathology ; Memory Disorders - psychology ; Methohexital ; Middle Aged ; Nervous system (semeiology, syndromes) ; Neurology ; Neuropsychological Tests ; Reality Testing ; Verbal Behavior - physiology</subject><ispartof>Neurology, 1997-11, Vol.49 (5), p.1316-1322</ispartof><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c317t-6352950d8eff02a38237d59f2eb88307f61be4dfaf4792dfdcae8ea5959d8dac3</citedby><cites>FETCH-LOGICAL-c317t-6352950d8eff02a38237d59f2eb88307f61be4dfaf4792dfdcae8ea5959d8dac3</cites></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=2061729$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9371915$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>LU, L. H</creatorcontrib><creatorcontrib>BARRETT, A. M</creatorcontrib><creatorcontrib>SCHWARTZ, R. L</creatorcontrib><creatorcontrib>CIBULA, J. E</creatorcontrib><creatorcontrib>GILMORE, R. L</creatorcontrib><creatorcontrib>UTHMAN, B. M</creatorcontrib><creatorcontrib>HEILMAN, K. M</creatorcontrib><title>Anosognosia and confabulation during the Wada test</title><title>Neurology</title><addtitle>Neurology</addtitle><description>Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selective anesthesia of the cerebral hemispheres. Seventeen patients with intractable epilepsy were tested during intracarotid methohexital infusion. For half of the trials, subjects were stimulated on their paretic hand with a material (sandpaper, metal, or cloth), and for the remaining trials they were not stimulated. The subjects were trained to use a pointing response to indicate if they been stimulated and the type of material they had felt. Admission of uncertainty was defined as pointing to a question mark. Confabulation was defined as any material response to a no-touch trial. During anesthesia of either hemisphere, subjects with and without AHP confabulated responses. The AHP and non-AHP groups did not differ in admission of uncertainty. Our results support the postulate that confabulation and AHP are independent disorders, and therefore confabulation cannot fully account for AHP.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Agnosia - physiopathology</subject><subject>Agnosia - psychology</subject><subject>Anesthetics, Intravenous</subject><subject>Biological and medical sciences</subject><subject>Carotid Arteries</subject><subject>Dominance, Cerebral - physiology</subject><subject>Epilepsy - diagnosis</subject><subject>Epilepsy - physiopathology</subject><subject>Epilepsy - psychology</subject><subject>Fantasy</subject><subject>Female</subject><subject>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy</subject><subject>Humans</subject><subject>Injections, Intra-Arterial</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Memory Disorders - physiopathology</subject><subject>Memory Disorders - psychology</subject><subject>Methohexital</subject><subject>Middle Aged</subject><subject>Nervous system (semeiology, syndromes)</subject><subject>Neurology</subject><subject>Neuropsychological Tests</subject><subject>Reality Testing</subject><subject>Verbal Behavior - physiology</subject><issn>0028-3878</issn><issn>1526-632X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kD1PwzAQhi0EKqUwMiJlQGwJ9jmO7bGq-JIqWEBlsy6xXYLSpMTJwL_HqFGXu-F99N7pIeSa0YwBg_vN6zrLdSYyxllxQuZMQJEWHD5PyZxSUClXUp2TixC-KY2h1DMy01wyzcScwLLtQreNo8YEW5tUXeuxHBsc6q5N7NjX7TYZvlyyQYvJ4MJwSc48NsFdTXtBPh4f3lfP6frt6WW1XKcVZ3KILwjQglrlvKeAXAGXVmgPrlSKU-kLVrrcevS51GC9rdAph0ILbZXFii_I3aF333c_YzxsdnWoXNNg67oxGKlz4AAigukBrPouhN55s-_rHfa_hlHz78hERybXRph_R5G_mYrHcufskZ6kxPx2yjFU2Pge26oORwxowSRo_gc95m5O</recordid><startdate>19971101</startdate><enddate>19971101</enddate><creator>LU, L. H</creator><creator>BARRETT, A. M</creator><creator>SCHWARTZ, R. L</creator><creator>CIBULA, J. E</creator><creator>GILMORE, R. L</creator><creator>UTHMAN, B. M</creator><creator>HEILMAN, K. M</creator><general>Lippincott Williams & Wilkins</general><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></search><sort><creationdate>19971101</creationdate><title>Anosognosia and confabulation during the Wada test</title><author>LU, L. H ; BARRETT, A. M ; SCHWARTZ, R. L ; CIBULA, J. E ; GILMORE, R. L ; UTHMAN, B. M ; HEILMAN, K. M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c317t-6352950d8eff02a38237d59f2eb88307f61be4dfaf4792dfdcae8ea5959d8dac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Agnosia - physiopathology</topic><topic>Agnosia - psychology</topic><topic>Anesthetics, Intravenous</topic><topic>Biological and medical sciences</topic><topic>Carotid Arteries</topic><topic>Dominance, Cerebral - physiology</topic><topic>Epilepsy - diagnosis</topic><topic>Epilepsy - physiopathology</topic><topic>Epilepsy - psychology</topic><topic>Fantasy</topic><topic>Female</topic><topic>Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy</topic><topic>Humans</topic><topic>Injections, Intra-Arterial</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Memory Disorders - physiopathology</topic><topic>Memory Disorders - psychology</topic><topic>Methohexital</topic><topic>Middle Aged</topic><topic>Nervous system (semeiology, syndromes)</topic><topic>Neurology</topic><topic>Neuropsychological Tests</topic><topic>Reality Testing</topic><topic>Verbal Behavior - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LU, L. H</creatorcontrib><creatorcontrib>BARRETT, A. M</creatorcontrib><creatorcontrib>SCHWARTZ, R. L</creatorcontrib><creatorcontrib>CIBULA, J. E</creatorcontrib><creatorcontrib>GILMORE, R. L</creatorcontrib><creatorcontrib>UTHMAN, B. M</creatorcontrib><creatorcontrib>HEILMAN, K. 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M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anosognosia and confabulation during the Wada test</atitle><jtitle>Neurology</jtitle><addtitle>Neurology</addtitle><date>1997-11-01</date><risdate>1997</risdate><volume>49</volume><issue>5</issue><spage>1316</spage><epage>1322</epage><pages>1316-1322</pages><issn>0028-3878</issn><eissn>1526-632X</eissn><coden>NEURAI</coden><abstract>Feinberg et al. proposed that right-hemisphere-damaged stroke patients with anosognosia for hemiplegia (AHP) confabulate seeing stimuli on the left side but those without AHP admit to having inadequate visual information. This study examines the relationship between AHP and confabulation using selective anesthesia of the cerebral hemispheres. Seventeen patients with intractable epilepsy were tested during intracarotid methohexital infusion. For half of the trials, subjects were stimulated on their paretic hand with a material (sandpaper, metal, or cloth), and for the remaining trials they were not stimulated. The subjects were trained to use a pointing response to indicate if they been stimulated and the type of material they had felt. Admission of uncertainty was defined as pointing to a question mark. Confabulation was defined as any material response to a no-touch trial. During anesthesia of either hemisphere, subjects with and without AHP confabulated responses. The AHP and non-AHP groups did not differ in admission of uncertainty. Our results support the postulate that confabulation and AHP are independent disorders, and therefore confabulation cannot fully account for AHP.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams & Wilkins</pub><pmid>9371915</pmid><doi>10.1212/WNL.49.5.1316</doi><tpages>7</tpages></addata></record> |
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| subjects | Adolescent Adult Aged Agnosia - physiopathology Agnosia - psychology Anesthetics, Intravenous Biological and medical sciences Carotid Arteries Dominance, Cerebral - physiology Epilepsy - diagnosis Epilepsy - physiopathology Epilepsy - psychology Fantasy Female Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy Humans Injections, Intra-Arterial Male Medical sciences Memory Disorders - physiopathology Memory Disorders - psychology Methohexital Middle Aged Nervous system (semeiology, syndromes) Neurology Neuropsychological Tests Reality Testing Verbal Behavior - physiology |
| title | Anosognosia and confabulation during the Wada test |
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