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Slow-theta power decreases during item-place encoding predict spatial accuracy of subsequent context recall

Slow-theta power decreases during item-place encoding predict spatial accuracy of subsequent context recall

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CRESPO-GARCÍA, Maité, Monika ZEILLER, Claudia LEUPOLD, Gernot KREISELMEYER, Stefan RAMPP, Hajo M. HAMER, Sarang S. DALAL, 2016. Slow-theta power decreases during item-place encoding predict spatial accuracy of subsequent context recall. In: NeuroImage. 142, pp. 533-543. ISSN 1053-8119. eISSN 1095-9572

@article{Crespo-Garcia2016-11Slow--35013, title={Slow-theta power decreases during item-place encoding predict spatial accuracy of subsequent context recall}, year={2016}, doi={10.1016/j.neuroimage.2016.08.021}, volume={142}, issn={1053-8119}, journal={NeuroImage}, pages={533--543}, author={Crespo-García, Maité and Zeiller, Monika and Leupold, Claudia and Kreiselmeyer, Gernot and Rampp, Stefan and Hamer, Hajo M. and Dalal, Sarang S.} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/35013"> <dc:creator>Dalal, Sarang S.</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-08-16T12:50:40Z</dc:date> <dc:creator>Hamer, Hajo M.</dc:creator> <dc:creator>Kreiselmeyer, Gernot</dc:creator> <dcterms:title>Slow-theta power decreases during item-place encoding predict spatial accuracy of subsequent context recall</dcterms:title> <dc:creator>Rampp, Stefan</dc:creator> <dcterms:abstract xml:lang="eng">Human hippocampal theta oscillations play a key role in accurate spatial coding. Associative encoding involves similar hippocampal networks but, paradoxically, is also characterized by theta power decreases. Here, we investigated how theta activity relates to associative encoding of place contexts resulting in accurate navigation. Using MEG, we found that slow-theta (2–5 Hz) power negatively correlated with subsequent spatial accuracy for virtual contextual locations in posterior hippocampus and other cortical structures involved in spatial cognition. A rare opportunity to simultaneously record MEG and intracranial EEG in an epilepsy patient provided crucial insights: during power decreases, slow-theta in right anterior hippocampus and left inferior frontal gyrus phase-led the left temporal cortex and predicted spatial accuracy. Our findings indicate that decreased slow-theta activity reflects local and long-range neural mechanisms that encode accurate spatial contexts, and strengthens the view that local suppression of low-frequency activity is essential for more efficient processing of detailed information.</dcterms:abstract> <dc:language>eng</dc:language> <dc:contributor>Leupold, Claudia</dc:contributor> <dc:contributor>Crespo-García, Maité</dc:contributor> <dcterms:rights rdf:resource="http://nbn-resolving.de/urn:nbn:de:bsz:352-20150914100631302-4485392-8"/> <dc:creator>Leupold, Claudia</dc:creator> <dc:contributor>Rampp, Stefan</dc:contributor> <dc:creator>Crespo-García, Maité</dc:creator> <dc:contributor>Dalal, Sarang S.</dc:contributor> <dc:contributor>Kreiselmeyer, Gernot</dc:contributor> <dcterms:issued>2016-11</dcterms:issued> <dc:creator>Zeiller, Monika</dc:creator> <dc:contributor>Zeiller, Monika</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/35013"/> <dc:contributor>Hamer, Hajo M.</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2016-08-16T12:50:40Z</dcterms:available> </rdf:Description> </rdf:RDF>

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