MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Dopamine neurons modulate neural encoding and expression of depression-related behaviour

Author(s)
Tye, Kay; Mirzabekov, Julie J.; Warden, Melissa R.; Ferenczi, Emily A.; Tsai, Hsing-Chen; Finkelstein, Joel; Kim, Sung-Yon; Adhikari, Avishek; Thompson, Kimberly R.; Andalman, Aaron S.; Gunaydin, Lisa A.; Witten, Ilana B.; Deisseroth, Karl; ... Show more Show less
Thumbnail
DownloadTye_Dopamine neurons.pdf (1.679Mb)
PUBLISHER_POLICY

Publisher Policy

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
Major depression is characterized by diverse debilitating symptoms that include hopelessness and anhedonia1. Dopamine neurons involved in reward and motivation are among many neural populations that have been hypothesized to be relevant, and certain antidepressant treatments, including medications and brain stimulation therapies, can influence the complex dopamine system. Until now it has not been possible to test this hypothesis directly, even in animal models, as existing therapeutic interventions are unable to specifically target dopamine neurons. Here we investigated directly the causal contributions of defined dopamine neurons to multidimensional depression-like phenotypes induced by chronic mild stress, by integrating behavioural, pharmacological, optogenetic and electrophysiological methods in freely moving rodents. We found that bidirectional control (inhibition or excitation) of specified midbrain dopamine neurons immediately and bidirectionally modulates (induces or relieves) multiple independent depression symptoms caused by chronic stress. By probing the circuit implementation of these effects, we observed that optogenetic recruitment of these dopamine neurons potently alters the neural encoding of depression-related behaviours in the downstream nucleus accumbens of freely moving rodents, suggesting that processes affecting depression symptoms may involve alterations in the neural encoding of action in limbic circuitry.
Date issued
2012-12
URI
http://hdl.handle.net/1721.1/92905
Department
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences; Picower Institute for Learning and Memory
Journal
Nature
Publisher
Nature Publishing Group
Citation
Tye, Kay M., Julie J. Mirzabekov, Melissa R. Warden, Emily A. Ferenczi, Hsing-Chen Tsai, Joel Finkelstein, Sung-Yon Kim, et al. “Dopamine Neurons Modulate Neural Encoding and Expression of Depression-Related Behaviour.” Nature 493, no. 7433 (December 12, 2012): 537–541.
Version: Author's final manuscript
ISSN
0028-0836
1476-4687

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.