Stimulus-dependent effects on right ear advantage in schizophrenia

Jason Smucny,1,3 Korey Wylie,3 Jason Tregellas1&ndash;31Neuroscience Program, University of Colorado Anschutz Medical Campus, 2Research Science, Denver VA Medical, Center, 3Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USABackground: When presented wit...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Smucny J, Wylie K, Tregellas J
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2012
Materias:	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
Acceso en línea:	https://doaj.org/article/06e646d9f8804229a1caee93aeac40bf
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:06e646d9f8804229a1caee93aeac40bf
record_format	dspace
spelling	oai:doaj.org-article:06e646d9f8804229a1caee93aeac40bf2021-12-02T00:02:25ZStimulus-dependent effects on right ear advantage in schizophrenia1176-63281178-2021https://doaj.org/article/06e646d9f8804229a1caee93aeac40bf2012-09-01T00:00:00Zhttp://www.dovepress.com/stimulus-dependent-effects-on-right-ear-advantage-in-schizophrenia-a11068https://doaj.org/toc/1176-6328https://doaj.org/toc/1178-2021Jason Smucny,1,3 Korey Wylie,3 Jason Tregellas1&ndash;31Neuroscience Program, University of Colorado Anschutz Medical Campus, 2Research Science, Denver VA Medical, Center, 3Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USABackground: When presented with different sounds in each ear (dichotic listening), healthy subjects typically show a preference for stimuli heard in the right ear, an effect termed &quot;right ear advantage&quot;. Previous studies examining right ear advantage in schizophrenia have been inconsistent, showing either decreased or increased advantage relative to comparison subjects. Given evidence for enhanced semantic processing in schizophrenia, some of this inconsistency may be due to the type of stimuli presented (words or syllables). The present study examined right ear advantage in patients and controls using both words and syllables as stimuli.Methods: Right ear advantage was compared between 20 patients with schizophrenia and 17 healthy controls. Two versions of the task were used, ie, a consonant-vowel pairing task and a fused rhymed words task.Results: A significant group &times; task interaction was observed. Relative to healthy controls, patients showed a greater difference on the syllable-based task compared with the word-based task. The number of distractors marked during the syllable-based task was inversely correlated with score on the Global Assessment of Function Scale.Conclusion: The findings are consistent with a left hemisphere dysfunction in schizophrenia, but also suggest that differences may be stimulus-specific, with a relative sparing of the deficit in the context of word stimuli. Performance may be related to measures of social, occupational, and psychological function.Keywords: schizophrenia, right ear advantage, dichotic, distractionSmucny JWylie KTregellas JDove Medical PressarticleNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol 2012, Iss default, Pp 423-427 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429
spellingShingle	Neurosciences. Biological psychiatry. Neuropsychiatry RC321-571 Neurology. Diseases of the nervous system RC346-429 Smucny J Wylie K Tregellas J Stimulus-dependent effects on right ear advantage in schizophrenia
description	Jason Smucny,1,3 Korey Wylie,3 Jason Tregellas1&ndash;31Neuroscience Program, University of Colorado Anschutz Medical Campus, 2Research Science, Denver VA Medical, Center, 3Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USABackground: When presented with different sounds in each ear (dichotic listening), healthy subjects typically show a preference for stimuli heard in the right ear, an effect termed &quot;right ear advantage&quot;. Previous studies examining right ear advantage in schizophrenia have been inconsistent, showing either decreased or increased advantage relative to comparison subjects. Given evidence for enhanced semantic processing in schizophrenia, some of this inconsistency may be due to the type of stimuli presented (words or syllables). The present study examined right ear advantage in patients and controls using both words and syllables as stimuli.Methods: Right ear advantage was compared between 20 patients with schizophrenia and 17 healthy controls. Two versions of the task were used, ie, a consonant-vowel pairing task and a fused rhymed words task.Results: A significant group &times; task interaction was observed. Relative to healthy controls, patients showed a greater difference on the syllable-based task compared with the word-based task. The number of distractors marked during the syllable-based task was inversely correlated with score on the Global Assessment of Function Scale.Conclusion: The findings are consistent with a left hemisphere dysfunction in schizophrenia, but also suggest that differences may be stimulus-specific, with a relative sparing of the deficit in the context of word stimuli. Performance may be related to measures of social, occupational, and psychological function.Keywords: schizophrenia, right ear advantage, dichotic, distraction
format	article
author	Smucny J Wylie K Tregellas J
author_facet	Smucny J Wylie K Tregellas J
author_sort	Smucny J
title	Stimulus-dependent effects on right ear advantage in schizophrenia
title_short	Stimulus-dependent effects on right ear advantage in schizophrenia
title_full	Stimulus-dependent effects on right ear advantage in schizophrenia
title_fullStr	Stimulus-dependent effects on right ear advantage in schizophrenia
title_full_unstemmed	Stimulus-dependent effects on right ear advantage in schizophrenia
title_sort	stimulus-dependent effects on right ear advantage in schizophrenia
publisher	Dove Medical Press
publishDate	2012
url	https://doaj.org/article/06e646d9f8804229a1caee93aeac40bf
work_keys_str_mv	AT smucnyj stimulusdependenteffectsonrightearadvantageinschizophrenia AT wyliek stimulusdependenteffectsonrightearadvantageinschizophrenia AT tregellasj stimulusdependenteffectsonrightearadvantageinschizophrenia
_version_	1718403964098052096

Stimulus-dependent effects on right ear advantage in schizophrenia

Ejemplares similares