Intervention-specific patterns of cortical function plasticity during auditory encoding in people with schizophrenia.
Schizophr Res
; 215: 241-249, 2020 01.
Article
em En
| MEDLINE
| ID: mdl-31648842
ABSTRACT
Schizophrenia is a neurocognitive illness characterized by behavioral and neural impairments in both early auditory processing and higher order verbal working memory. Previously we have shown intervention-specific cognitive performance improvements with computerized, targeted training of auditory processing (AT) when compared to a computer games (CG) control intervention that emphasized visual processing. To investigate spatiotemporal changes in patterns of neural activity specific to the AT intervention, the current study used magnetoencephalography (MEG) imaging to derive induced high gamma band oscillations (HGO) during auditory encoding, before and after 50â¯h (â¼10 weeks) of exposure to either the AT or CG intervention. During stimulus encoding, AT intervention-specific changes in high gamma activity occurred in left middle frontal and left middle-superior temporal cortices. In contrast, CG intervention-specific changes were observed in right medial frontal and supramarginal gyri during stimulus encoding, and in bilateral temporal cortices during response preparation. These data reveal that, in schizophrenia, intensive exposure to either training of auditory processing or exposure to visuospatial activities produces significant but complementary patterns of cortical function plasticity within a distributed fronto-temporal network. These results underscore the importance of delineating the specific neuroplastic effects of targeted behavioral interventions to ensure desired neurophysiological changes and avoid unintended consequences on neural system functioning.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Esquizofrenia
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Percepção da Fala
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Lobo Temporal
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Disfunção Cognitiva
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Ritmo Gama
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Lobo Frontal
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Memória de Curto Prazo
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Plasticidade Neuronal
Tipo de estudo:
Etiology_studies
Limite:
Adult
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Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article