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T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY

BACKGROUND: Neurocognitive models and previous neuroimaging work posit that auditory verbal hallucinations (AVH) arise due to increased auditory cortex (AC) activity and altered connectivity between the AC and other speech and language regions [e.g. 1]. In the present study we examined if patients w...

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Autores principales: Orlov, Natasza, Giampietro, Vincent, O’Daly, Owen, Barker, Gareth, Rubia, Katya, McGuire, Philip, Shergill, Sukhi, Allen, Paul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5888290/
http://dx.doi.org/10.1093/schbul/sby016.426
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author Orlov, Natasza
Giampietro, Vincent
O’Daly, Owen
Barker, Gareth
Rubia, Katya
McGuire, Philip
Shergill, Sukhi
Allen, Paul
author_facet Orlov, Natasza
Giampietro, Vincent
O’Daly, Owen
Barker, Gareth
Rubia, Katya
McGuire, Philip
Shergill, Sukhi
Allen, Paul
author_sort Orlov, Natasza
collection PubMed
description BACKGROUND: Neurocognitive models and previous neuroimaging work posit that auditory verbal hallucinations (AVH) arise due to increased auditory cortex (AC) activity and altered connectivity between the AC and other speech and language regions [e.g. 1]. In the present study we examined if patients with schizophrenia (SCZ) and AVH could be trained to down-regulate AC activity using real time functional Magnetic Resonance Imaging neurofeedback (rtfMRI-NF) [2]. We also examined the effects of rtfMRI-NF training on functional connectivity between the AC and other speech and language regions. METHODS: Eleven patients with SCZ (Table 1) and treatment refractory AVH were recruited to participate in the study and were trained to down-regulate auditory cortex (AC) activity over an average of fourteen rtfMRI-NF runs conducted during a two-week training period (Fig 1). We used a functional localiser to identify the speech sensitive superior temporal cortex (STG) (Figure 2A). At the end of the training period, AC activity, functional connectivity and AVH symptom levels were compared pre and post training. RESULTS: Patients successfully learnt to down-regulate activity in their AC over the rtfMRI-NF training period. Post training, patients showed increased connectivity between the AC, the inferior prefrontal gyrus and the inferior parietal lobe Figure. There was also a modest reduction in AVH symptom levels post compared to pre training (Table 2). DISCUSSION: The AC is as suitable target region for rtfMRI-NF in patients with SCZ and treatment refractory AVH. Successful down-regulation of AC activity can increase functional connectivity between speech motor and perception regions. These findings raise the possibility that rtfMRI-NF training could be used as a novel therapeutic intervention in this clinical population.
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spelling pubmed-58882902018-04-11 T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY Orlov, Natasza Giampietro, Vincent O’Daly, Owen Barker, Gareth Rubia, Katya McGuire, Philip Shergill, Sukhi Allen, Paul Schizophr Bull Abstracts BACKGROUND: Neurocognitive models and previous neuroimaging work posit that auditory verbal hallucinations (AVH) arise due to increased auditory cortex (AC) activity and altered connectivity between the AC and other speech and language regions [e.g. 1]. In the present study we examined if patients with schizophrenia (SCZ) and AVH could be trained to down-regulate AC activity using real time functional Magnetic Resonance Imaging neurofeedback (rtfMRI-NF) [2]. We also examined the effects of rtfMRI-NF training on functional connectivity between the AC and other speech and language regions. METHODS: Eleven patients with SCZ (Table 1) and treatment refractory AVH were recruited to participate in the study and were trained to down-regulate auditory cortex (AC) activity over an average of fourteen rtfMRI-NF runs conducted during a two-week training period (Fig 1). We used a functional localiser to identify the speech sensitive superior temporal cortex (STG) (Figure 2A). At the end of the training period, AC activity, functional connectivity and AVH symptom levels were compared pre and post training. RESULTS: Patients successfully learnt to down-regulate activity in their AC over the rtfMRI-NF training period. Post training, patients showed increased connectivity between the AC, the inferior prefrontal gyrus and the inferior parietal lobe Figure. There was also a modest reduction in AVH symptom levels post compared to pre training (Table 2). DISCUSSION: The AC is as suitable target region for rtfMRI-NF in patients with SCZ and treatment refractory AVH. Successful down-regulation of AC activity can increase functional connectivity between speech motor and perception regions. These findings raise the possibility that rtfMRI-NF training could be used as a novel therapeutic intervention in this clinical population. Oxford University Press 2018-04 2018-04-01 /pmc/articles/PMC5888290/ http://dx.doi.org/10.1093/schbul/sby016.426 Text en © Maryland Psychiatric Research Center 2018. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Abstracts
Orlov, Natasza
Giampietro, Vincent
O’Daly, Owen
Barker, Gareth
Rubia, Katya
McGuire, Philip
Shergill, Sukhi
Allen, Paul
T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title_full T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title_fullStr T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title_full_unstemmed T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title_short T150. REAL-TIME FMRI NEUROFEEDBACK TO DOWN-REGULATE SUPERIOR TEMPORAL GYRUS ACTIVITY IN PATIENTS WITH SCHIZOPHRENIA AND AUDITORY HALLUCINATIONS: A PROOF-OF-CONCEPT STUDY
title_sort t150. real-time fmri neurofeedback to down-regulate superior temporal gyrus activity in patients with schizophrenia and auditory hallucinations: a proof-of-concept study
topic Abstracts
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5888290/
http://dx.doi.org/10.1093/schbul/sby016.426
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