Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/22258
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dc.contributor.authorWerkle-Bergner, Markusen_UK
dc.contributor.authorShing, Yee Leeen_UK
dc.contributor.authorMuller, Viktoren_UK
dc.contributor.authorLi, Shu-Chenen_UK
dc.contributor.authorLindenberger, Ulmanen_UK
dc.date.accessioned2015-09-29T23:38:20Z-
dc.date.available2015-09-29T23:38:20Zen_UK
dc.date.issued2009-07en_UK
dc.identifier.urihttp://hdl.handle.net/1893/22258-
dc.description.abstractObjective: To investigate lifespan age differences in neuronal mechanisms of visual coding in the context of perceptual discrimination. Methods: We recorded EEG from 17 children (10-12years), 16 younger adults (20-26years), and 17 older adults (70-76years) during a simple choice-reaction task requiring discrimination of squares and circles of different sizes. We examined age-group differences in the effect of stimulus size on early ERP components, evoked gamma-band power, and inter-trial phase-stability in the gamma band as assessed by the phase-locking index (PLI). Results: In the absence of age differences in discrimination accuracy, we observed reliable age differences in patterns of ERP, evoked gamma power, and PLI. P1 and N1 peak amplitudes were larger and the peak latencies longer in children than in adults. Children also showed lower levels of evoked power and PLI than adults. Older adults showed smaller increments in evoked power with increasing stimulus size than younger adults, but similar amounts of phase locking for small- and medium-sized stimuli as younger adults. Conclusions: The relative importance of different coding mechanisms in early visual areas changes from childhood to old age. Due to synaptic overproduction and immature myelination, the visual system of children is less entrained by incoming information, resulting in less synchronized neuronal responses. Adults primarily rely on sparse representations formed through experience-dependent temporally synchronized neuronal interactions. In old age, senescent decline in neuronal density and neurotransmitter availability further increase the reliance on temporally synchronized processing. Significance: Findings from this study defy the notion that sensory aging consists in a reversal of sensory development in childhood, and point to a high degree of age specificity in mechanisms of visual coding.en_UK
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.relationWerkle-Bergner M, Shing YL, Muller V, Li S & Lindenberger U (2009) EEG gamma-band synchronization in visual coding from childhood to old age: Evidence from evoked power and inter-trial phase locking. Clinical Neurophysiology, 120 (7), pp. 1291-1302. https://doi.org/10.1016/j.clinph.2009.04.012en_UK
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.rights.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserveden_UK
dc.subjectLifespan developmenten_UK
dc.subjectEEG oscillationsen_UK
dc.subjectGammaen_UK
dc.subjectSensory codingen_UK
dc.subjectDifferentiation/dedifferentiationen_UK
dc.titleEEG gamma-band synchronization in visual coding from childhood to old age: Evidence from evoked power and inter-trial phase lockingen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-24en_UK
dc.rights.embargoreason[Werkle-Bergner_squarescircles09.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.identifier.doi10.1016/j.clinph.2009.04.012en_UK
dc.identifier.pmid19482545en_UK
dc.citation.jtitleClinical Neurophysiologyen_UK
dc.citation.issn1388-2457en_UK
dc.citation.volume120en_UK
dc.citation.issue7en_UK
dc.citation.spage1291en_UK
dc.citation.epage1302en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.author.emailyee.shing@stir.ac.uken_UK
dc.citation.date23/05/2009en_UK
dc.contributor.affiliationMax Planck Institute for Human Developmenten_UK
dc.contributor.affiliationPsychologyen_UK
dc.contributor.affiliationMax Planck Institute for Human Developmenten_UK
dc.contributor.affiliationMax Planck Institute for Human Developmenten_UK
dc.contributor.affiliationMax Planck Institute for Human Developmenten_UK
dc.identifier.isiWOS:000268841700009en_UK
dc.identifier.scopusid2-s2.0-67649868146en_UK
dc.identifier.wtid589694en_UK
dc.contributor.orcid0000-0001-8922-7292en_UK
dc.date.accepted2009-04-21en_UK
dcterms.dateAccepted2009-04-21en_UK
dc.date.filedepositdate2015-09-29en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorWerkle-Bergner, Markus|en_UK
local.rioxx.authorShing, Yee Lee|0000-0001-8922-7292en_UK
local.rioxx.authorMuller, Viktor|en_UK
local.rioxx.authorLi, Shu-Chen|en_UK
local.rioxx.authorLindenberger, Ulman|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2999-12-24en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filenameWerkle-Bergner_squarescircles09.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source1388-2457en_UK
Appears in Collections:Psychology Journal Articles

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