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Long-term implicit memory for sequential auditory patterns in humans

Bianco, R; Harrison, PMC; Hu, M; Bolger, C; Picken, S; Pearce, MT; Chait, M; (2020) Long-term implicit memory for sequential auditory patterns in humans. eLife 10.7554/eLife.56073. (In press). Green open access

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Abstract

Memory, on multiple timescales, is critical to our ability to discover the structure of our surroundings, and efficiently interact with the environment. We combined behavioural manipulation and modelling to investigate the dynamics of memory formation for rarely reoccurring acoustic patterns. In a series of experiments, participants detected the emergence of regularly repeating patterns within rapid tone-pip sequences. Unbeknownst to them, a few patterns reoccurred every ~3 minutes. All sequences consisted of the same 20 frequencies and were distinguishable only by the order of tone-pips. Despite this, reoccurring patterns were associated with a rapidly growing detection-time advantage over novel patterns. This effect was implicit, robust to interference, and persisted up to 7 weeks. The results implicate an interplay between short (a few seconds) and long-term (over many minutes) integration in memory formation and demonstrate the remarkable sensitivity of the human auditory system to sporadically reoccurring structure within the acoustic environment.

Type: Article
Title: Long-term implicit memory for sequential auditory patterns in humans
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.7554/eLife.56073
Publisher version: https://doi.org/10.7554/eLife.56073
Language: English
Additional information: © 2020, Bianco et al. This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).
Keywords: human, neuroscience
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > The Ear Institute
URI: https://discovery.ucl.ac.uk/id/eprint/10099369
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