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Klanker M, Fellinger L, Feenstra M, Willuhn I, Denys D. Regionally distinct phasic dopamine release patterns in the striatum during reversal learning. Neuroscience 2016; 345:110-123. [PMID: 27185487 DOI: 10.1016/j.neuroscience.2016.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 05/04/2016] [Accepted: 05/06/2016] [Indexed: 12/28/2022]
Abstract
Striatal dopamine (DA) plays a central role in reward-related learning and behavioral adaptation to changing environments. Recent studies suggest that rather than being broadcast as a uniform signal throughout the entire region, DA release dynamics diverge between different striatal regions. In a previous study, we showed that phasic DA release patterns in the ventromedial striatum (VMS) rapidly adapt during reversal learning. However, it is unknown how DA dynamics in the dorsolateral striatum (DLS) are modulated during such adaptive behavior. Here, we used fast-scan cyclic voltammetry to measure phasic DA release in the DLS during spatial reversal learning. In the DLS, we observed minor DA release after the onset of a visual cue signaling reward availability, followed by more pronounced DA release during more proximal reward cues (e.g., lever extension) and execution of the operant response (i.e., lever press), both in rewarded and non-rewarded trials. These release dynamics (minor DA after onset of the predictive visual cue, prominent DA during the operant response) did not change significantly during or following a reversal of response-reward contingencies. Notably, the DA increase to the lever press did not reflect a general signal related to the initiation of any motivated motor response, as we did not observe DA release when rats initiated nose pokes into the food receptacle during inter-trial intervals. This suggests that DA release in the DLS occurs selectively during the initiation and execution of a learned operant response. Together with our previous results obtained in the VMS, these findings reveal distinct phasic DA release patterns during adaptation of established behavior in DLS and VMS. The VMS DA signal, which is highly sensitive to reversal of response-reward contingences, may provide a teaching signal to guide reward-related learning and facilitate behavioral adaptation, whereas DLS DA may reflect a 'response execution signal' largely independent of outcome, that may be involved in initiation and energizing of operant behavior.
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Affiliation(s)
- Marianne Klanker
- Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Postbus 22660, 1100 DD Amsterdam, The Netherlands.
| | - Lisanne Fellinger
- Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands
| | - Matthijs Feenstra
- Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Postbus 22660, 1100 DD Amsterdam, The Netherlands
| | - Ingo Willuhn
- Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Postbus 22660, 1100 DD Amsterdam, The Netherlands
| | - Damiaan Denys
- Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands; Department of Psychiatry, Academic Medical Center, University of Amsterdam, Postbus 22660, 1100 DD Amsterdam, The Netherlands
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de Kwaasteniet BP, Rive MM, Ruhé HG, Schene AH, Veltman DJ, Fellinger L, van Wingen GA, Denys D. Decreased Resting-State Connectivity between Neurocognitive Networks in Treatment Resistant Depression. Front Psychiatry 2015; 6:28. [PMID: 25784881 PMCID: PMC4345766 DOI: 10.3389/fpsyt.2015.00028] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 02/09/2015] [Indexed: 12/28/2022] Open
Abstract
Approximately one-third of patients with major depressive disorder (MDD) do not achieve remission after various treatment options and develop treatment resistant depression (TRD). So far, little is known about the pathophysiology of TRD. Studies in MDD patients showed aberrant functional connectivity (FC) of three "core" neurocognitive networks: the salience network (SN), cognitive control network (CCN), and default mode network (DMN). We used a cross-sectional design and performed resting-state FC MRI to assess connectivity of the SN, CCN, and both anterior and posterior DMN in 17 severe TRD, 18 non-TRD, and 18 healthy control (HC) subjects. Relative to both non-TRD and HC subjects, TRD patients showed decreased FC between the dorsolateral prefrontal cortex and angular gyrus, which suggests reduced FC between the CCN and DMN, and reduced FC between the medial prefrontal cortex and precuneus/cuneus, which suggests reduced FC between the anterior and posterior DMN. No significant differences in SN FC were observed. Our results suggest that TRD is characterized by a disturbance in neurocognitive networks relative to non-TRD and HC.
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Affiliation(s)
- Bart P de Kwaasteniet
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands
| | - Maria M Rive
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands
| | - Henricus G Ruhé
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands ; Department of Psychiatry, Mood and Anxiety Disorders, University Medical Center Groningen, University of Groningen , Groningen , Netherlands
| | - Aart H Schene
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Department of Psychiatry, Radboud University Medical Center , Nijmegen , Netherlands ; Donders Institute for Brain, Cognition and Behavior, Radboud University Nijmegen , Nijmegen , Netherlands
| | - Dick J Veltman
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Department of Psychiatry, VU University Medical Center , Amsterdam , Netherlands
| | - Lisanne Fellinger
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands
| | - Guido A van Wingen
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands
| | - Damiaan Denys
- Department of Psychiatry, Academic Medical Center , Amsterdam , Netherlands ; Brain Imaging Center, Academic Medical Center , Amsterdam , Netherlands ; Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences , Amsterdam , Netherlands
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