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Basolateral and central amygdala differentially recruit and maintain dorsolateral striatum-dependent cocaine-seeking habits.


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Authors

Belin-Rauscent, Aude 
Simon, Marine 
Giuliano, Chiara 
Benoit-Marand, Marianne 

Abstract

In the development of addiction, drug seeking becomes habitual and controlled by drug-associated cues, and the neural locus of control over behaviour shifts from the ventral to the dorsolateral striatum. The neural mechanisms underlying this functional transition from recreational drug use to drug-seeking habits are unknown. Here we combined functional disconnections and electrophysiological recordings of the amygdalo-striatal networks in rats trained to seek cocaine to demonstrate that functional shifts within the striatum are driven by transitions from the basolateral (BLA) to the central (CeN) amygdala. Thus, while the recruitment of dorsolateral striatum dopamine-dependent control over cocaine seeking is triggered by the BLA, its long-term maintenance depends instead on the CeN. These data demonstrate that limbic cortical areas both tune the function of cognitive territories of the striatum and thereby underpin maladaptive cocaine-seeking habits.

Description

Keywords

Animals, Basolateral Nuclear Complex, Behavior, Animal, Central Amygdaloid Nucleus, Cocaine, Drug-Seeking Behavior, Excitatory Amino Acid Antagonists, Isoxazoles, Male, N-Methylaspartate, Rats, Rats, Sprague-Dawley, Receptors, Glutamate, Self Administration, Tetrazoles

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

5

Publisher

Springer Science and Business Media LLC
Sponsorship
Medical Research Council (G1002231)
Medical Research Council (G0001354)
Medical Research Council (G1000183)
Wellcome Trust (093875/Z/10/Z)
This work was supported by the Fondation pour la Recherche Médicale (FRM), the United Kingdom Medical Research Council (MRC) Grant 9536855 to BJE, the AXA research fund to ABR, an INSERM Avenir and an Agence Nationale de la Recherche (ANR) grant ANR12 SAMA00201 to DB. Research was conducted within both the MRC/Wellcome Trust Behavioral and Clinical Neuroscience Institute of Cambridge and the Inserm team “Psychobiology of Compulsive Disorders”, University of Poitiers.