Journal
NATURE COMMUNICATIONS
Volume 9, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-05961-4
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Funding
- Biotechnology and Biological Sciences Research Council [BB/M010732/1]
- James S McDonnell Foundation Scholar Award [220020405]
- ONR [N00014-14-1-0681]
- NIMH [R00MH092715, R37MH087027]
- MIT Picower Institute Innovation Fund
- ONR MURI grant [N00014-16-1-2832]
- NIHR Oxford Health Biomedical Research Centre
- Wellcome Trust [203139/Z/16/Z]
- BBSRC [BB/M010732/1] Funding Source: UKRI
- NATIONAL INSTITUTE OF MENTAL HEALTH [R37MH087027] Funding Source: NIH RePORTER
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Working memory (WM) is characterized by the ability to maintain stable representations over time; however, neural activity associated with WM maintenance can be highly dynamic. We explore whether complex population coding dynamics during WM relate to the intrinsic temporal properties of single neurons in lateral prefrontal cortex (IPFC), the frontal eye fields (FEF), and lateral intraparietal cortex (LIP) of two monkeys (Macaca mulatta). We find that cells with short timescales carry memory information relatively early during memory encoding in IPFC; whereas long-timescale cells play a greater role later during processing, dominating coding in the delay period. We also observe a link between functional connectivity at rest and the intrinsic timescale in FEF and LIP. Our results indicate that individual differences in the temporal processing capacity predict complex neuronal dynamics during WM, ranging from rapid dynamic encoding of stimuli to slower, but stable, maintenance of mnemonic information.
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