More than spikes: Common oscillatory mechanisms for content specific neural representations during perception and memory

Andrew J. Watrous, Juergen Fell, Arne D. Ekstrom, Nikolai Axmacher

Research output: Contribution to journalReview articlepeer-review

57 Scopus citations

Abstract

Although previous research into the mechanisms underlying sensory and episodic representations has primarily focused on changes in neural firing rate, more recent evidence suggests that neural oscillations also contribute to these representations. Here, we argue that multiplexed oscillatory power and phase contribute to neural representations at the mesoscopic scale, complementary to neuronal firing. Reviewing recent studies which used oscillatory activity to decipher content-specific neural representations, we identify oscillatory mechanisms common to both sensory and episodic memory representations and incorporate these into a model of episodic encoding and retrieval. This model advances the idea that oscillations provide a reference frame for phase-coded item representations during memory encoding and that shifts in oscillatory frequency and phase coordinate ensemble activity during memory retrieval.

Original languageEnglish (US)
Pages (from-to)33-39
Number of pages7
JournalCurrent Opinion in Neurobiology
Volume31
DOIs
StatePublished - Apr 2015
Externally publishedYes

ASJC Scopus subject areas

  • Neuroscience(all)

Fingerprint

Dive into the research topics of 'More than spikes: Common oscillatory mechanisms for content specific neural representations during perception and memory'. Together they form a unique fingerprint.

Cite this