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Alexander N.J. Pietersen
Researcher at University of Sydney
Publications - 13
Citations - 286
Alexander N.J. Pietersen is an academic researcher from University of Sydney. The author has contributed to research in topics: Lateral geniculate nucleus & Koniocellular cell. The author has an hindex of 8, co-authored 13 publications receiving 237 citations. Previous affiliations of Alexander N.J. Pietersen include University of Birmingham & Australian Research Council.
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Journal ArticleDOI
Emergence of Complex Wave Patterns in Primate Cerebral Cortex
Rory G. Townsend,Selina S. Solomon,Spencer C. Chen,Alexander N.J. Pietersen,Paul R. Martin,Samuel G. Solomon,Pulin Gong +6 more
TL;DR: It is shown that nerve cell spike rates are higher in presence of complex waves than in the presence of synchrony and that there are nonrandom patterns of evolution from one type of complex wave to another.
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Modulation of gamma oscillations by endogenous adenosine through A1 and A2A receptors in the mouse hippocampus.
TL;DR: Observations indicate that gamma oscillation strength is powerfully modulated by ambient levels of adenosine through A(1) receptors, opposed by A(2A) receptors.
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Transition between fast and slow gamma modes in rat hippocampus area CA1 in vitro is modulated by slow CA3 gamma oscillations
Alexander N.J. Pietersen,Alexander N.J. Pietersen,Peter D. Ward,Nicholas Hagger-Vaughan,Nicholas Hagger-Vaughan,James Wiggins,John G. R. Jefferys,Martin Vreugdenhil +7 more
TL;DR: It is found that activating acetylcholine receptors induced stable gamma oscillations in the CA1 local network isolated in slices in vitro that were faster than those in CA3, but relied on similar neuronal circuitry involving feedback inhibition.
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Comparison between spontaneous and kainate‐induced gamma oscillations in the mouse hippocampus in vitro
TL;DR: The use of SγO as a natural model for hippocampal gamma oscillations, particularly during less activated behavioural states is advocated, indicating that endogenous adenosine and/or endocannabinoids suppress or prevent Sγo in vitro.
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Colour and pattern selectivity of receptive fields in superior colliculus of marmoset monkeys.
TL;DR: It is shown that in recordings from anaesthetised marmoset monkeys, S cones do not contribute to visual responses in the SC, which implies that colour‐selective responses reported in SC of awake monkeys must arrive through indirect (non‐retinal) inputs to the SC.