Improving visual perception through neurofeedback
Identifieur interne : 000123 ( Pmc/Curation ); précédent : 000122; suivant : 000124Improving visual perception through neurofeedback
Auteurs : Frank Scharnowski [Royaume-Uni, Suisse] ; Chloe Hutton [Royaume-Uni] ; Oliver Josephs [Royaume-Uni] ; Nikolaus Weiskopf [Royaume-Uni] ; Geraint Rees [Royaume-Uni]Source :
- The Journal of neuroscience : the official journal of the Society for Neuroscience [ 0270-6474 ] ; 2012.
Abstract
Perception depends on the interplay of ongoing spontaneous activity and stimulus-evoked activity in sensory cortices. This raises the possibility that training ongoing spontaneous activity alone might be sufficient for enhancing perceptual sensitivity. To test this, we trained human participants to control ongoing spontaneous activity in circumscribed regions of retinotopic visual cortex using real-time functional MRI based neurofeedback. After training, we tested participants using a new and previously untrained visual detection task that was presented at the visual field location corresponding to the trained region of visual cortex. Perceptual sensitivity was significantly enhanced only when participants who had previously learned control over ongoing activity were now exercising control, and only for that region of visual cortex. Our new approach allows us to non-invasively and non-pharmacologically manipulate regionally specific brain activity, and thus provide ‘brain training’ to deliver particular perceptual enhancements.
Url:
DOI: 10.1523/JNEUROSCI.6334-11.2012
PubMed: 23223302
PubMed Central: 3520425
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xml:lang="en"><p id="P2">Perception depends on the interplay of ongoing spontaneous activity and stimulus-evoked activity in sensory cortices. This raises the possibility that training ongoing spontaneous activity alone might be sufficient for enhancing perceptual sensitivity. To test this, we trained human participants to control ongoing spontaneous activity in circumscribed regions of retinotopic visual cortex using real-time functional MRI based neurofeedback. After training, we tested participants using a new and previously untrained visual detection task that was presented at the visual field location corresponding to the trained region of visual cortex. Perceptual sensitivity was significantly enhanced only when participants who had previously learned control over ongoing activity were now exercising control, and only for that region of visual cortex. Our new approach allows us to non-invasively and non-pharmacologically manipulate regionally specific brain activity, and thus provide ‘brain training’ to deliver particular perceptual enhancements.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">8102140</journal-id><journal-id journal-id-type="pubmed-jr-id">5035</journal-id><journal-id journal-id-type="nlm-ta">J Neurosci</journal-id><journal-id journal-id-type="iso-abbrev">J. Neurosci.</journal-id><journal-title-group><journal-title>The Journal of neuroscience : the official journal of the Society for Neuroscience</journal-title></journal-title-group><issn pub-type="ppub">0270-6474</issn><issn pub-type="epub">1529-2401</issn></journal-meta><article-meta><article-id pub-id-type="pmid">23223302</article-id><article-id pub-id-type="pmc">3520425</article-id><article-id pub-id-type="doi">10.1523/JNEUROSCI.6334-11.2012</article-id><article-id pub-id-type="manuscript">EMS50826</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Improving visual perception through neurofeedback</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Scharnowski</surname><given-names>Frank</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="aff" rid="A2">2</xref><xref ref-type="aff" rid="A3">3</xref><xref ref-type="aff" rid="A4">4</xref></contrib><contrib contrib-type="author"><name><surname>Hutton</surname><given-names>Chloe</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Josephs</surname><given-names>Oliver</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Weiskopf</surname><given-names>Nikolaus</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="author-notes" rid="FN1">5</xref></contrib><contrib contrib-type="author"><name><surname>Rees</surname><given-names>Geraint</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="aff" rid="A2">2</xref><xref ref-type="author-notes" rid="FN1">5</xref></contrib></contrib-group><aff id="A1"><label>1</label>Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, University College London, 12 Queen Square, LondonWC1N 3BG, UK</aff><aff id="A2"><label>2</label>UCL Institute of Cognitive Neuroscience, University College London, Alexandra House, 17 Queen Square, London WC1N 3AR, UK</aff><aff id="A3"><label>3</label>Institute of Bioengineering, Swiss Institute of Technology (EPFL), STI-IBI Station 17, CH-1015 Lausanne, Switzerland</aff><aff id="A4"><label>4</label>Department of Radiology and Medical Informatics – CIBM, University of Geneva, Rue Gabrielle-Perret-G 4, CH-1211 Geneva 14, Switzerland</aff><author-notes><corresp id="CR1">Corresponding author: Frank Scharnowski; Wellcome Trust Centre for Neuroimaging, UCL Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, UK; <email>frank.scharnowski@fil.ion.ucl.ac.uk</email>; telephone +41 78 76 76 749.</corresp><fn fn-type="equal" id="FN1"><label>5</label><p id="P1">These authors contributed equally to this work.</p></fn></author-notes><pub-date pub-type="nihms-submitted"><day>7</day><month>12</month><year>2012</year></pub-date><pub-date pub-type="ppub"><day>5</day><month>12</month><year>2012</year></pub-date><pub-date pub-type="pmc-release"><day>05</day><month>6</month><year>2013</year></pub-date><volume>32</volume><issue>49</issue><fpage>17830</fpage><lpage>17841</lpage><abstract><p id="P2">Perception depends on the interplay of ongoing spontaneous activity and stimulus-evoked activity in sensory cortices. This raises the possibility that training ongoing spontaneous activity alone might be sufficient for enhancing perceptual sensitivity. To test this, we trained human participants to control ongoing spontaneous activity in circumscribed regions of retinotopic visual cortex using real-time functional MRI based neurofeedback. After training, we tested participants using a new and previously untrained visual detection task that was presented at the visual field location corresponding to the trained region of visual cortex. Perceptual sensitivity was significantly enhanced only when participants who had previously learned control over ongoing activity were now exercising control, and only for that region of visual cortex. Our new approach allows us to non-invasively and non-pharmacologically manipulate regionally specific brain activity, and thus provide ‘brain training’ to deliver particular perceptual enhancements.</p></abstract><funding-group><award-group><funding-source country="United Kingdom">Wellcome Trust : </funding-source><award-id>082334 || WT</award-id></award-group></funding-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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