Academic Journal
Orbitofrontal Cortex Mediates Sustained Basolateral Amygdala Encoding of Cued Reward-Seeking States
| العنوان: | Orbitofrontal Cortex Mediates Sustained Basolateral Amygdala Encoding of Cued Reward-Seeking States |
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| المؤلفون: | Ottenheimer, David J., Vitale, Katherine, Ambroggi, Frederic, Janak, Patricia, Saunders, Benjamin |
| المساهمون: | Johns Hopkins University (JHU), Institut de Neurosciences de la Timone (INT), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), University of Minnesota Twin Cities (UMN), University of Minnesota System (UMN) |
| المصدر: | ISSN: 0270-6474. |
| بيانات النشر: | HAL CCSD Society for Neuroscience |
| سنة النشر: | 2024 |
| المجموعة: | Aix-Marseille Université: HAL |
| مصطلحات موضوعية: | basolateral amygdala, electrophysiology, optogenetics, orbitofrontal cortex, pavlovian, reward seeking, [SDV.NEU.PC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Psychology and behavior |
| الوصف: | International audience ; Basolateral amygdala (BLA) neurons are engaged by emotionally salient stimuli. An area of increasing interest is how BLA dynamics relate to evolving reward-seeking behavior, especially under situations of uncertainty or ambiguity. Here, we recorded the activity of individual BLA neurons in male rats across the acquisition and extinction of conditioned reward seeking. We assessed ongoing neural dynamics in a task where long reward cue presentations preceded an unpredictable, variably time reward delivery. We found that, with training, BLA neurons discriminated the CS+ and CS− cues with sustained cue-evoked activity that correlated with behavior and terminated only after reward receipt. BLA neurons were bidirectionally modulated, with a majority showing prolonged inhibition during cued reward seeking. Strikingly, population-level analyses revealed that neurons showing cue-evoked inhibitions and those showing excitations similarly represented the CS+ and behavioral state. This sustained population code rapidly extinguished in parallel with conditioned behavior. We next assessed the contribution of the orbitofrontal cortex (OFC), a major reciprocal partner to the BLA. Inactivation of the OFC while simultaneously recording in the BLA revealed a blunting of sustained cue-evoked activity in the BLA that accompanied reduced reward seeking. Optogenetic disruption of BLA activity and OFC terminals in the BLA also reduced reward seeking. Our data indicate that the BLA represents reward-seeking states via sustained, bidirectional cue-driven neural encoding. This code is regulated by cortical input and is important for the maintenance of vigilant reward-seeking behavior. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1523/JNEUROSCI.0013-24.2024 |
| الاتاحة: | https://hal.science/hal-04791690 https://hal.science/hal-04791690v1/document https://hal.science/hal-04791690v1/file/Ottenheinmer%20DJ%20et%20al.%202024%20JNS.pdf https://doi.org/10.1523/JNEUROSCI.0013-24.2024 |
| رقم الانضمام: | edsbas.BD0B0974 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1523/JNEUROSCI.0013-24.2024 |
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