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• W2166302654 abstract "The aim of this study is to examine how the amygdala and hippocampus interact for behavioral performance modulated by different reward expectations. We simultaneously recorded neuronal spikes and local field potential from the basolateral amygdala and hippocampal CA1 while rats were performing a light-side discrimination task with different expectations of a high or low probability of reward delivery. Here, we report the following results. First, the rats actually modulated their behavioral performance on their expectations of a high or low probability of reward. Second, we found more neurons related to reward expectation in the amygdala and more neurons related to task performance in the hippocampus. Third, a prominent increase in the coherence of high-frequency oscillations (HFOs) (90-150Hz) between the amygdala and the hippocampus was present during high reward expectation. Fourth, coherent HFOs during inter-trial intervals and theta coherence during trials had significant correlations with the behavioral goal-selection time. Finally, cross-frequency couplings of LFPs within and across the amygdala and hippocampus occurred during ITI. These results suggest that the amygdala and hippocampus have different functional roles in the present task with different reward expectations, and the distinctive band of coherence between the amygdala and the hippocampus contributes to behavioral modulation on the basis of reward expectations. We propose that the amygdala influences firing rates and the strength of synchronization of hippocampal neurons through coherent oscillation, which is a part of the mechanism of how reward expectations modulate goal-directed behavior." @default.
• W2166302654 created "2016-06-24" @default.
• W2166302654 creator A5076947198 @default.
• W2166302654 date "2013-01-01" @default.
• W2166302654 modified "2023-10-16" @default.
• W2166302654 title "Oscillatory interaction between amygdala and hippocampus coordinates behavioral modulation based on reward expectation" @default.
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• W2166302654 doi "https://doi.org/10.3389/fnbeh.2013.00177" @default.
• W2166302654 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3847563" @default.
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