Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study

Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Brigitte C. Kaufmann [verfasserIn] Dario Cazzoli [verfasserIn] Monica Koenig-Bruhin [verfasserIn] René M. Müri [verfasserIn] Tobias Nef [verfasserIn] Thomas Nyffeler [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position

Übergeordnetes Werk:	In: Frontiers in Neuroscience - Frontiers Media S.A., 2008, 15(2021)
Übergeordnetes Werk:	volume:15 ; year:2021

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3389/fnins.2021.640049

Katalog-ID:	DOAJ056954077

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allfields	10.3389/fnins.2021.640049 doi (DE-627)DOAJ056954077 (DE-599)DOAJb8c267b34c0f44f4b4e2cb8dc8afdbd4 DE-627 ger DE-627 rakwb eng RC321-571 Brigitte C. Kaufmann verfasserin aut Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry Brigitte C. Kaufmann verfasserin aut Brigitte C. Kaufmann verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Monica Koenig-Bruhin verfasserin aut René M. Müri verfasserin aut René M. Müri verfasserin aut Tobias Nef verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut In Frontiers in Neuroscience Frontiers Media S.A., 2008 15(2021) (DE-627)55908109X (DE-600)2411902-7 1662453X nnns volume:15 year:2021 https://doi.org/10.3389/fnins.2021.640049 kostenfrei https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 kostenfrei https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full kostenfrei https://doaj.org/toc/1662-453X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2021
spelling	10.3389/fnins.2021.640049 doi (DE-627)DOAJ056954077 (DE-599)DOAJb8c267b34c0f44f4b4e2cb8dc8afdbd4 DE-627 ger DE-627 rakwb eng RC321-571 Brigitte C. Kaufmann verfasserin aut Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry Brigitte C. Kaufmann verfasserin aut Brigitte C. Kaufmann verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Monica Koenig-Bruhin verfasserin aut René M. Müri verfasserin aut René M. Müri verfasserin aut Tobias Nef verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut In Frontiers in Neuroscience Frontiers Media S.A., 2008 15(2021) (DE-627)55908109X (DE-600)2411902-7 1662453X nnns volume:15 year:2021 https://doi.org/10.3389/fnins.2021.640049 kostenfrei https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 kostenfrei https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full kostenfrei https://doaj.org/toc/1662-453X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2021
allfields_unstemmed	10.3389/fnins.2021.640049 doi (DE-627)DOAJ056954077 (DE-599)DOAJb8c267b34c0f44f4b4e2cb8dc8afdbd4 DE-627 ger DE-627 rakwb eng RC321-571 Brigitte C. Kaufmann verfasserin aut Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry Brigitte C. Kaufmann verfasserin aut Brigitte C. Kaufmann verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Monica Koenig-Bruhin verfasserin aut René M. Müri verfasserin aut René M. Müri verfasserin aut Tobias Nef verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut In Frontiers in Neuroscience Frontiers Media S.A., 2008 15(2021) (DE-627)55908109X (DE-600)2411902-7 1662453X nnns volume:15 year:2021 https://doi.org/10.3389/fnins.2021.640049 kostenfrei https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 kostenfrei https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full kostenfrei https://doaj.org/toc/1662-453X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2021
allfieldsGer	10.3389/fnins.2021.640049 doi (DE-627)DOAJ056954077 (DE-599)DOAJb8c267b34c0f44f4b4e2cb8dc8afdbd4 DE-627 ger DE-627 rakwb eng RC321-571 Brigitte C. Kaufmann verfasserin aut Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry Brigitte C. Kaufmann verfasserin aut Brigitte C. Kaufmann verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Monica Koenig-Bruhin verfasserin aut René M. Müri verfasserin aut René M. Müri verfasserin aut Tobias Nef verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut In Frontiers in Neuroscience Frontiers Media S.A., 2008 15(2021) (DE-627)55908109X (DE-600)2411902-7 1662453X nnns volume:15 year:2021 https://doi.org/10.3389/fnins.2021.640049 kostenfrei https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 kostenfrei https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full kostenfrei https://doaj.org/toc/1662-453X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2021
allfieldsSound	10.3389/fnins.2021.640049 doi (DE-627)DOAJ056954077 (DE-599)DOAJb8c267b34c0f44f4b4e2cb8dc8afdbd4 DE-627 ger DE-627 rakwb eng RC321-571 Brigitte C. Kaufmann verfasserin aut Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits. left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry Brigitte C. Kaufmann verfasserin aut Brigitte C. Kaufmann verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Dario Cazzoli verfasserin aut Monica Koenig-Bruhin verfasserin aut René M. Müri verfasserin aut René M. Müri verfasserin aut Tobias Nef verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut Thomas Nyffeler verfasserin aut In Frontiers in Neuroscience Frontiers Media S.A., 2008 15(2021) (DE-627)55908109X (DE-600)2411902-7 1662453X nnns volume:15 year:2021 https://doi.org/10.3389/fnins.2021.640049 kostenfrei https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 kostenfrei https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full kostenfrei https://doaj.org/toc/1662-453X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 15 2021
language	English
source	In Frontiers in Neuroscience 15(2021) volume:15 year:2021
sourceStr	In Frontiers in Neuroscience 15(2021) volume:15 year:2021
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position Neurosciences. Biological psychiatry. Neuropsychiatry
isfreeaccess_bool	true
container_title	Frontiers in Neuroscience
authorswithroles_txt_mv	Brigitte C. Kaufmann @@aut@@ Dario Cazzoli @@aut@@ Monica Koenig-Bruhin @@aut@@ René M. Müri @@aut@@ Tobias Nef @@aut@@ Thomas Nyffeler @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	55908109X
id	DOAJ056954077
language_de	englisch
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callnumber-first	R - Medicine
author	Brigitte C. Kaufmann
spellingShingle	Brigitte C. Kaufmann misc RC321-571 misc left-hemispheric stroke misc right spatial visual neglect misc aphasia misc video-oculography misc free visual exploration misc mean gaze position misc Neurosciences. Biological psychiatry. Neuropsychiatry Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study
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topic_title	RC321-571 Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study left-hemispheric stroke right spatial visual neglect aphasia video-oculography free visual exploration mean gaze position
topic	misc RC321-571 misc left-hemispheric stroke misc right spatial visual neglect misc aphasia misc video-oculography misc free visual exploration misc mean gaze position misc Neurosciences. Biological psychiatry. Neuropsychiatry
topic_unstemmed	misc RC321-571 misc left-hemispheric stroke misc right spatial visual neglect misc aphasia misc video-oculography misc free visual exploration misc mean gaze position misc Neurosciences. Biological psychiatry. Neuropsychiatry
topic_browse	misc RC321-571 misc left-hemispheric stroke misc right spatial visual neglect misc aphasia misc video-oculography misc free visual exploration misc mean gaze position misc Neurosciences. Biological psychiatry. Neuropsychiatry
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title	Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study
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title_full	Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study
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author_browse	Brigitte C. Kaufmann Dario Cazzoli Monica Koenig-Bruhin René M. Müri Tobias Nef Thomas Nyffeler
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doi_str_mv	10.3389/fnins.2021.640049
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title_sort	video-oculography during free visual exploration to detect right spatial neglect in left-hemispheric stroke patients with aphasia: a feasibility study
callnumber	RC321-571
title_auth	Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study
abstract	Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits.
abstractGer	Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits.
abstract_unstemmed	Spatial neglect has been shown to occur in 17–65% of patients after acute left-hemispheric stroke. One reason for this varying incidence values might be that left-hemispheric stroke is often accompanied by aphasia, which raises difficulties in assessing attention deficits with conventional neuropsychological tests entailing verbal instructions. Video-oculography during free visual exploration (FVE) requires only little understanding of simple non-verbal instruction and has been shown to be a sensitive and reliable tool to detect spatial neglect in patients with right-hemispheric stroke. In the present study, we aimed to investigate the feasibility of FVE to detect neglect in 10 left-hemispheric stroke patients with mild to severe aphasia as assessed by means of the Token Test, Boston Naming Test and Aachener Aphasie Test. The patient’s individual deviation between eye movement calibration and validation was recorded and compared to 20 age-matched healthy controls. Furthermore, typical FVE parameters such as the landing point of the first fixation, the mean gaze position (in ° of visual angle), the number and duration of visual fixations and the mean visual exploration area were compared between groups. In addition, to evaluate for neglect, the Bells cancellation test was performed and neglect severity in daily living was measured by means of the Catherine Bergego Scale (CBS). Our results showed that the deviation between calibration and validation did not differ between aphasia patients and healthy controls highlighting its feasibility. Furthermore, FVE revealed the typical neglect pattern with a significant leftward shift in visual exploration bahaviour, which highly correlated with neglect severity as assessed with CBS. The present study provides evidence that FVE has the potential to be used as a neglect screening tool in left-hemispheric stroke patients with aphasia in which compliance with verbal test instructions may be compromised by language deficits.
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title_short	Video-Oculography During Free Visual Exploration to Detect Right Spatial Neglect in Left-Hemispheric Stroke Patients With Aphasia: A Feasibility Study
url	https://doi.org/10.3389/fnins.2021.640049 https://doaj.org/article/b8c267b34c0f44f4b4e2cb8dc8afdbd4 https://www.frontiersin.org/articles/10.3389/fnins.2021.640049/full https://doaj.org/toc/1662-453X
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author2	Brigitte C. Kaufmann Dario Cazzoli Monica Koenig-Bruhin René M. Müri Tobias Nef Thomas Nyffeler
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