Cited by 119Olfactory and Sensory Function StudiesMemory and Neural MechanismsNeurogenesis and neuroplasticity mechanisms

The role of olfactory bulb norepinephrine in early olfactory learning

Sullivan, R.M., Zyzak, D.R., Skierkowski, P., Wilson, D.A.·1992·Developmental Brain Research

Abstract

Wistar rat pups were implanted with bilateral olfactory bulb cannulas on postnatal day 5 (PN5). On PN6, pups were trained in an olfactory classical conditioning task with peppermint odor as the CS and tactile stimulation/stroking as the UCS. Pups were randomly assigned to either PAIRED, BACKWARD or ODOR-only conditions. Half the pups in each group received intrabulbar infusions of 100 microM propranolol and half received intrabulbar infusions of saline during the training session. Propranolol infusions blocked acquisition of the learned odor preference expressed by PAIRED saline-infused pups. Diffusion of the infusate was checked in additional pups by infusing [3H]NE and performing LSC analysis. Infusate concentration did not significantly differ between the anterior and posterior halves of the bulb, but were sharply lower in the olfactory peduncle and more posterior areas. The results suggest that olfactory bulb NE is critical for early olfactory learning.

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Crossref · 10.1016/0165-3806(92)90207-d

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  • During the first ten days of life, learning-associated plasticity for new maternal odors in rat pups occurs within the olfactory bulb and requires an odor paired with copious amounts of NE.

    “During the first ten days of life, the learning process for new maternal odors in rat pups occurs through a relatively simple neurobiological substrate. At this early age, learning-associated plasticity occurs within the olfactory bulb, the first relay station for olfactory processing. This process requires that an odor is paired with copious amounts of NE (Sullivan et al., 2000b, Sullivan et al.,”

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Authors
Sullivan, R. M., Zyzak, D. R., Skierkowski, P., & Wilson, D. A.
Affiliations
University of Oklahoma (US)
Corresponding author
Sullivan, R.M.
Venue
Developmental Brain Research
Publisher
Elsevier BV
Published
1992-11
Volume
70
Issue
2
Pages
279-282
ISSN
0165-3806 (ISSN-L)
OpenAlex
W1987713348
Cited by
119
References
18
Citations by year
2026: 1 · 2025: 2 · 2023: 3 · 2022: 1 · 2020: 3 · 2019: 4 · 2018: 4 · 2017: 6 · 2016: 5 · 2015: 4 · 2014: 3 · 2013: 1 · 2012: 4
FWCI
3.31
Type
journal article
Language
en
Open access
closed
Locations
  • Developmental Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Deafness and Other Communication Disorders (DC00489)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD033402)
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Olfactory and Sensory Function Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
norepinephrine, olfactory bulb, olfactory learning, propranolol, odor preference, postnatal development, olfactory peduncle, tactile stimulation
MeSH terms
Animals, Animals, Newborn, Conditioning, Classical, Learning, Norepinephrine, Odorants, Olfactory Bulb, Propranolol, Smell, Touch, Rats, Wistar, Rats

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