Evidence of Olfactory Imprinting at an Early Life Stage in Pink Salmon (Oncorhynchus gorbuscha)

Bett, Nolan N.; Hinch, Scott G.; Dittman, Andrew H.; Yun, Sang-Seon

doi:10.1038/srep36393

Cited by 17 publications

(17 citation statements)

References 36 publications

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“…In salmon, where olfactory imprinting occurs (Bett et al, 2016), TH peak at the onset of the CP for memory formation (Lema and Nevitt, 2004). This has not been directly linked to experience-dependent behavioral plasticity, but T4 and T3 control cellular proliferation within the olfactory epithelium during the sensitive period (Lema and Nevitt, 2004).…”

Section: Early Thyroid Hormone Levels Regulate Complex Behaviorsmentioning

confidence: 99%

Critical Period Regulation by Thyroid Hormones: Potential Mechanisms and Sex-Specific Aspects

Batista

Hensch

2019

Front. Mol. Neurosci.

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Adequate perinatal levels of thyroid hormones (THs) are required for normal brain function and development. Studies in non-mammalian species suggest that TH might be involved in the regulation of critical periods (CPs) of heightened plasticity. Yet, it is largely unknown what mechanisms controlling such CPs might be under TH regulation. Here, we briefly review the influence of TH in early life across evolution. We discuss possible links between TH and known circuit and/or molecular mechanisms determining the timing of CPs of heightened brain plasticity. We focus on the role of parvalbumin-positive (PV) interneurons since their maturation defines CP onset and closure. Specifically, abnormal PV circuits are associated with low perinatal levels of TH, possibly because thyroid hypofunction may increase oxidative stress and/or dysregulate Otx2-mediated maturation of neuroprotective perineuronal nets. In addition, the level of cholinergic transmission is important for CP plasticity. Potentially, TH levels could affect gain changes in cholinergic transmission that can alter brain development. We believe that understanding how TH impacts CPs of circuit refinement will shed light onto the principles underlying normal developmental trajectories. Given that the thyroid gland expresses estrogen and androgen receptors, its activity can potentially be regulated differently between the sexes, contributing to sexually dimorphic behaviors.

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Section: Early Thyroid Hormone Levels Regulate Complex Behaviorsmentioning

confidence: 99%

Critical Period Regulation by Thyroid Hormones: Potential Mechanisms and Sex-Specific Aspects

Batista

Hensch

2019

Front. Mol. Neurosci.

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“…There is more recent evidence that some species of Pacific salmon, e.g. juvenile pink salmon (Oncorhynchus gorbuscha) and others, can imprint prior to the PST at a very young age (Bett et al, 2016;Dittman et al, 2015). Bett et al (2016) published an excellent review on olfactory imprinting and olfactory guided navigation during spawning migrations in different salmon species and lampreys, elucidating imprinting cues and underlying mechanisms.…”

Section: Olfactory Imprinting and Olfactory Guided Navigation In Telementioning

confidence: 99%

“…juvenile pink salmon (Oncorhynchus gorbuscha) and others, can imprint prior to the PST at a very young age (Bett et al, 2016;Dittman et al, 2015). Bett et al (2016) published an excellent review on olfactory imprinting and olfactory guided navigation during spawning migrations in different salmon species and lampreys, elucidating imprinting cues and underlying mechanisms. However, there is also evidence that salmon imprint magnetically on their home area and this most likely brings them close to the home stream, with olfactory cues used mainly in the final part of the spawning migration (Putman et al, 2014(Putman et al, , 2013.…”

Section: Olfactory Imprinting and Olfactory Guided Navigation In Telementioning

confidence: 99%

Behavioural and neuronal basis of olfactory imprinting and kin recognition in larval fish

Gerlach

Tietje

Biechl

et al. 2019

Journal of Experimental Biology

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Imprinting is a specific form of long-term memory of a cue acquired during a sensitive phase of development. To ensure that organisms memorize the right cue, the learning process must happen during a specific short time period, mostly soon after hatching, which should end before irrelevant or misleading signals are encountered. A wellknown case of olfactory imprinting in the aquatic environment is that of the anadromous Atlantic and Pacific salmon, which prefer the olfactory cues of natal rivers to which they return after migrating several years in the open ocean. Recent research has shown that olfactory imprinting and olfactory guided navigation in the marine realm are far more common than previously assumed. Here, we present evidence for the involvement of olfactory imprinting in the navigation behaviour of coral reef fish, which prefer their home reef odour over that of other reefs. Two main olfactory imprinting processes can be differentiated: (1) imprinting on environmental cues and (2) imprinting on chemical compounds released by kin, which is based on genetic relatedness among conspecifics. While the first process allows for plasticity, so that organisms can imprint on a variety of chemical signals, the latter seems to be restricted to specific genetically determined kin signals. We focus on the second, elucidating the behavioural and neuronal basis of the imprinting process on kin cues using larval zebrafish (Danio rerio) as a model. Our data suggest that the process of imprinting is not confined to the central nervous system but also triggers some changes in the olfactory epithelium.

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“…In worms, imprinting to different odors underlies aversive and appetitive responses 2 , 4 . Adult salmons also rely on imprinted odors experienced in early life for navigating towards breeding sites in adulthood 1 , 5 . In precocial birds, imprinted memories support the rapid development of filial attachment 3 , 6 .…”

Section: Introductionmentioning

confidence: 99%

Regulation of filial imprinting and structural plasticity by mTORC1 in newborn chickens

Batista

Johnson

Dominguez

et al. 2018

Sci Rep

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Dysregulation of the mechanistic target of rapamycin complex 1 (mTORC1) signaling leads to memory deficits and abnormal social behaviors in adults. However, whether mTORC1 is involved in critical periods of early learning remains largely unexplored. Our study addressed this question by investigating imprinting, a form of learning constrained to a sensitive period that supports filial attachment, in newborn chickens. Imprinting to virtual objects and sounds was assessed after acute manipulations of mTORC1. To further understand the role of mTORC1 during the critical period, structural plasticity was analyzed using DiOlistic labeling of dendritic spines. We found that mTORC1 is required for the emergence of experience-dependent preferences and structural plasticity within brain regions controlling behavior. Furthermore, upon critical period closure, pharmacological activation of the AKT/mTORC1 pathway was sufficient to rescue imprinting across sensory modalities. Thus, our results uncover a novel role of mTORC1 in the formation of imprinted memories and experience-dependent reorganization of neural circuits during a critical period.

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Evidence of Olfactory Imprinting at an Early Life Stage in Pink Salmon (Oncorhynchus gorbuscha)

Cited by 17 publications

References 36 publications

Critical Period Regulation by Thyroid Hormones: Potential Mechanisms and Sex-Specific Aspects

Critical Period Regulation by Thyroid Hormones: Potential Mechanisms and Sex-Specific Aspects

Behavioural and neuronal basis of olfactory imprinting and kin recognition in larval fish

Regulation of filial imprinting and structural plasticity by mTORC1 in newborn chickens

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