The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
Optogenetic Excitation of Central Amygdala Amplifies and Narrows Incentive Motivation to Pursue One Reward Above Another
Open accessAbstract
Choosing one reward above another is important for achieving adaptive life goals. Yet hijacked into excessive intensity in disorders such as addiction, single-minded pursuit becomes maladaptive. Here, we report that optogenetic channelrhodopsin stimulation of neurons in central nucleus of amygdala (CeA), paired with earning a particular sucrose reward in rats, amplified and narrowed incentive motivation to that single reward target. Therefore, CeA rats chose and intensely pursued only the laser-paired sucrose reward while ignoring an equally good sucrose alternative. In contrast, reward-paired stimulation of basolateral amygdala did not hijack choice. In a separate measure of incentive motivation, CeA stimulation also increased the progressive ratio breakpoint or level of effort exerted to obtain sucrose reward. However, CeA stimulation by itself failed to support behavioral self-stimulation in the absence of any paired external food reward, suggesting that CeA photo-excitation specifically transformed the value of its external reward (rather than adding an internal reinforcement state). Nor did CeA stimulation by itself induce any aversive state that motivated escape. Finally, CeA stimulation also failed to enhance ‘liking’ reactions elicited by sucrose taste and did not simply increase the general motivation to eat. This pattern suggests that CeA photo-excitation specifically enhances and narrows incentive motivation to pursue an associated external reward at the expense of another comparable reward.
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Cites
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Excitatory transmission from the amygdala to nucleus accumbens facilitates reward seeking
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Parallel incentive processing: an integrated view of amygdala function
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Self-citation
Cited by
Berridge, K. C., & Kringelbach, M. L. (2015) · Neuron · doi:10.1016/j.neuron.2015.02.018 · Cited by 1,730
Self-citationBasolateral to Central Amygdala Neural Circuits for Appetitive Behaviors
Kim, J., Zhang, X., Muralidhar, S., LeBlanc, S. A., & Tonegawa, S. (2017) · Neuron · doi:10.1016/j.neuron.2017.02.034 · Cited by 458
“Liking” and “wanting” in eating and food reward: Brain mechanisms and clinical implications
Morales, I., & Berridge, K. C. (2020) · Physiology & Behavior · doi:10.1016/j.physbeh.2020.113152 · Cited by 346
Self-citationIntegrated Control of Predatory Hunting by the Central Nucleus of the Amygdala
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The impact of sugar consumption on stress driven, emotional and addictive behaviors
Jacques, A., Chaaya, N., Beecher, K., Ali, S. A., Belmer, A., & Bartlett, S. (2019) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2019.05.021 · Cited by 271
Metadata
- Authors
- Robinson, M. J. F., Warlow, S. M., & Berridge, K. C.
- Venue
- The Journal of Neuroscience
- Publisher
- Society for Neuroscience
- Published
- 2014-12-10
- Volume
- 34
- Issue
- 50
- Pages
- 16567-16580
- ISSN
- 0270-6474 (ISSN-L)
- 1529-2401
- OpenAlex
- W2168307108
- Cited by
- 183
- References
- 14
- FWCI
- 5.37
- Type
- journal article
- Language
- en
- Open access
- hybrid
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