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Activity flow underlying abnormalities in brain activations and cognition in schizophreniaHearne, Luke J. ...Cognitive dysfunction is a core feature of many brain disorders such as schizophrenia (SZ), and has been linked to both aberrant brain functional connectivity (FC) and aberrant cognitive brain ... activations. We propose that aberrant network activity flow over FC pathways leads to altered cognitive activations that produce cognitive dysfunction in SZ. We tested this hypothesis using activity flow mapping - an approach that models the movement of task-related activity between brain regions as a function of FC. Using fMRI data from SZ individuals and healthy controls during a working memory task, we found that activity flow models accurately predict aberrant cognitive activations across multiple brain networks. Within the same framework, we simulated a connectivity-based clinical intervention, predicting specific treatments that normalized brain activations and behavior in independent patients. Our results suggest that dysfunctional task-evoked activity flow is a large-scale network mechanism contributing to the emergence of cognitive dysfunction in SZ.Type of material - offprint ; adult, seriousPublication and manufacture - Washington, DC : American Association for the Advancement of Science, 2021Language - englishCOBISS.SI-ID - 97600515
Author
Hearne, Luke J. |
Mill, Ravi D. |
Keane, Brian P. |
Repovš, Grega |
Anticevic, Alan |
Cole, Michael W., nevroznanost
Topics
shizofrenija |
možgani |
nevroznanost |
kognitivni upad |
funkcijska konektivnost |
nevronske mreže |
funkcijsko magnetnoresonančno slikanje fMRI |
delovni spomin |
separati |
schizophrenia |
brain |
neurosciences |
cognitive impairment |
functional connectivity |
neural networks |
functional magnetic resonance imaging fMRI |
working memory |
offprints
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Faculty of Arts, Central Humanities Library, Lj. | Ljubljana | FFLJ |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Hearne, Luke J. | |
Mill, Ravi D. | |
Keane, Brian P. | |
Repovš, Grega | 17893 |
Anticevic, Alan | |
Cole, Michael W., nevroznanost |
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