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Article: A comparison of hemodynamic and neural responses in cat visual cortex using complex stimuli

TitleA comparison of hemodynamic and neural responses in cat visual cortex using complex stimuli
Authors
Issue Date2004
PublisherOxford University Press. The Journal's web site is located at http://cercor.oxfordjournals.org/
Citation
Cerebral Cortex, 2004, v. 14 n. 8, p. 881-891 How to Cite?
AbstractWe compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate high-frequency responses (analog-Mua) and spiking activity recorded in primary and higher visual cortex of alert animals. The similarity of the activations in these electrophysiological signals to those in the BOLD is quantified by counting recording sites where different stimuli elicit the same relative activation as in the imaging experiments. Using artificial stimuli, a comparison of BOLD and LFP strongly depends on the frequency range used. Stimulating with complex or natural stimuli reduces this frequency dependence and yields a good match of LFP and BOLD. In general, this match is best between 20 and 50 Hz. The measures of high-frequency activity behave qualitatively different: the responses of the analog-Mua match those of the LFP; the spiking activity shows a low concordance with the BOLD signal. This dissociation of BOLD and spiking activity is most prominent upon stimulation with natural stimuli.
Persistent Identifierhttp://hdl.handle.net/10722/150890
ISSN
2015 Impact Factor: 8.285
2015 SCImago Journal Rankings: 4.827
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKayser, Cen_US
dc.contributor.authorKim, Men_US
dc.contributor.authorUgurbil, Ken_US
dc.contributor.authorKim, DSen_US
dc.contributor.authorKönig, Pen_US
dc.date.accessioned2012-06-26T06:13:57Z-
dc.date.available2012-06-26T06:13:57Z-
dc.date.issued2004en_US
dc.identifier.citationCerebral Cortex, 2004, v. 14 n. 8, p. 881-891en_US
dc.identifier.issn1047-3211en_US
dc.identifier.urihttp://hdl.handle.net/10722/150890-
dc.description.abstractWe compare fMRI-BOLD responses in anesthetized cats with local field potentials (LFPs), aggregate high-frequency responses (analog-Mua) and spiking activity recorded in primary and higher visual cortex of alert animals. The similarity of the activations in these electrophysiological signals to those in the BOLD is quantified by counting recording sites where different stimuli elicit the same relative activation as in the imaging experiments. Using artificial stimuli, a comparison of BOLD and LFP strongly depends on the frequency range used. Stimulating with complex or natural stimuli reduces this frequency dependence and yields a good match of LFP and BOLD. In general, this match is best between 20 and 50 Hz. The measures of high-frequency activity behave qualitatively different: the responses of the analog-Mua match those of the LFP; the spiking activity shows a low concordance with the BOLD signal. This dissociation of BOLD and spiking activity is most prominent upon stimulation with natural stimuli.en_US
dc.languageengen_US
dc.publisherOxford University Press. The Journal's web site is located at http://cercor.oxfordjournals.org/en_US
dc.relation.ispartofCerebral Cortexen_US
dc.subject.meshAnimalsen_US
dc.subject.meshBrain Mapping - Methodsen_US
dc.subject.meshCatsen_US
dc.subject.meshCerebrovascular Circulation - Physiologyen_US
dc.subject.meshElectroencephalography - Methodsen_US
dc.subject.meshEvoked Potentials, Visual - Physiologyen_US
dc.subject.meshMagnetic Resonance Imaging - Methodsen_US
dc.subject.meshNeurons - Physiologyen_US
dc.subject.meshPhotic Stimulation - Methodsen_US
dc.subject.meshVisual Cortex - Blood Supply - Physiologyen_US
dc.titleA comparison of hemodynamic and neural responses in cat visual cortex using complex stimulien_US
dc.typeArticleen_US
dc.identifier.emailKim, M:minakim@hku.hken_US
dc.identifier.authorityKim, M=rp00292en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1093/cercor/bhh047en_US
dc.identifier.pmid15084493-
dc.identifier.scopuseid_2-s2.0-3242741992en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-3242741992&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume14en_US
dc.identifier.issue8en_US
dc.identifier.spage881en_US
dc.identifier.epage891en_US
dc.identifier.isiWOS:000222563300008-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridKayser, C=7006326383en_US
dc.identifier.scopusauthoridKim, M=8146283400en_US
dc.identifier.scopusauthoridUgurbil, K=7102722412en_US
dc.identifier.scopusauthoridKim, DS=26637469800en_US
dc.identifier.scopusauthoridKönig, P=7102563952en_US
dc.identifier.citeulike8721294-

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