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Spatiotemporal dynamics of noradrenaline during learned behaviour

Nature (London), 2022-06, Vol.606 (7915), p.732-738 [Peer Reviewed Journal]

2022. The Author(s), under exclusive licence to Springer Nature Limited. ;Copyright Nature Publishing Group Jun 23, 2022 ;ISSN: 0028-0836 ;EISSN: 1476-4687 ;DOI: 10.1038/s41586-022-04782-2 ;PMID: 35650441

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  • Title:
    Spatiotemporal dynamics of noradrenaline during learned behaviour
  • Author: Breton-Provencher, Vincent ; Drummond, Gabrielle T ; Feng, Jiesi ; Li, Yulong ; Sur, Mriganka
  • Subjects: Animals ; Behavior, Animal ; Bias ; Cortex (motor) ; Endoscopy ; False alarms ; Inactivation ; Learning - physiology ; Locus coeruleus ; Locus Coeruleus - physiology ; Mice ; Neurons ; Noradrenaline ; Norepinephrine ; Norepinephrine - metabolism ; Optimization ; Optogenetics ; Performance enhancement ; Photons ; Reinforcement ; Roles ; Somatosensory cortex ; Tagging
  • Is Part Of: Nature (London), 2022-06, Vol.606 (7915), p.732-738
  • Description: Noradrenaline released from the locus coeruleus (LC) is a ubiquitous neuromodulator that has been linked to multiple functions including arousal , action and sensory gain , and learning . Whether and how activation of noradrenaline-expressing neurons in the LC (LC-NA) facilitates different components of specific behaviours is unknown. Here we show that LC-NA activity displays distinct spatiotemporal dynamics to enable two functions during learned behaviour: facilitating task execution and encoding reinforcement to improve performance accuracy. To examine these functions, we used a behavioural task in mice with graded auditory stimulus detection and task performance. Optogenetic inactivation of the LC demonstrated that LC-NA activity was causal for both task execution and optimization. Targeted recordings of LC-NA neurons using photo-tagging, two-photon micro-endoscopy and two-photon output monitoring showed that transient LC-NA activation preceded behavioural execution and followed reinforcement. These two components of phasic activity were heterogeneously represented in LC-NA cortical outputs, such that the behavioural response signal was higher in the motor cortex and facilitated task execution, whereas the negative reinforcement signal was widely distributed among cortical regions and improved response sensitivity on the subsequent trial. Modular targeting of LC outputs thus enables diverse functions, whereby some noradrenaline signals are segregated among targets, whereas others are broadly distributed.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 0028-0836
    EISSN: 1476-4687
    DOI: 10.1038/s41586-022-04782-2
    PMID: 35650441
  • Source: ProQuest One Psychology
    MEDLINE
    ProQuest Central
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