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• W2023943960 abstract "It is well established that physical changes to an environment result in plasticity of hippocampal place cell activity, while in the absence of changes, place fields are remarkably stable. Manipulations of a rat's perception of the environment without physically changing the environment also result in plasticity of place cell firing. Here, we tested the hypothesis that a rat's perception of an environment could be changed by introducing an auditory fear-conditioned stimulus (CS) to a previously neutral environment, inducing plasticity of hippocampal place fields. First, stable place fields were isolated for rats exploring a radial-arm maze in one environment, and then the rats were fear-conditioned to an auditory CS in a completely separate environment. Later, the CS was specifically paired once with a location in the previously neutral radial-arm maze, either within the given neuron's place field (in-field) or an area outside of the place field (out-of-field). A single, paired presentation of the CS with a location in-field for a specific place cell disrupted the stability of that neuron's place field, whereas pairing the CS with a location out-of-field did not affect place field stability. We further showed that this place field disruption for a CS presented in-field was mediated by inputs from the basolateral amygdala (BLA). Temporarily inactivating the BLA immediately post-CS re-exposure attenuated the CS-induced place field destabilization. Our results show neuron-specific conditional plasticity for actively firing hippocampal place cells, and that the BLA mediates this plasticity when an emotionally arousing or fear-related CS is used." @default.
• W2023943960 created "2016-06-24" @default.
• W2023943960 creator A5022259406 @default.
• W2023943960 creator A5056457407 @default.
• W2023943960 creator A5071710546 @default.
• W2023943960 date "2013-08-01" @default.
• W2023943960 modified "2023-10-18" @default.
• W2023943960 title "Fear conditioning alters neuron-specific hippocampal place field stability via the basolateral amygdala" @default.
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• W2023943960 doi "https://doi.org/10.1016/j.brainres.2013.06.015" @default.
• W2023943960 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23791951" @default.
• W2023943960 hasPublicationYear "2013" @default.
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