Dopaminergic activation anticipates daily nursing in the rabbit

2017 ◽  
Vol 45 (11) ◽  
pp. 1396-1409 ◽  
Author(s):  
J. Aguirre ◽  
E. Meza ◽  
M. Caba
Keyword(s):  
Dopaminergic Activation

Self-stimulation from substantia nigra transplants: Evidence of specific dopaminergic activation of the striatum

1982 ◽  
Vol 5 (1) ◽  
pp. 101
Author(s):  
P.J. Fray ◽  
S.B. Dunnett ◽  
A. Bjorklund ◽  
U. Stenevi ◽  
S.D. Iversen
Keyword(s):  
Substantia Nigra ◽  
Self Stimulation ◽  
Dopaminergic Activation

scholarly journals Consolidation of reward memory during sleep does not require dopaminergic activation

2019 ◽  
Author(s):  
M Alizadeh Asfestani ◽  
V Brechtmann ◽  
J Santiago ◽  
J Born ◽  
GB Feld
Keyword(s):  
Learning Task ◽  
Reward Learning ◽  
Nocturnal Sleep ◽  
Double Blind ◽  
Dopaminergic Neurotransmission ◽  
Long Duration ◽  
Differential Retention ◽  
Better Than ◽  
Dopaminergic Activation

AbstractSleep enhances memories, especially, if they are related to future rewards. Although dopamine has been shown to be a key determinant during reward learning, the role of dopaminergic neurotransmission for amplifying reward-related memories during sleep remains unclear. In the present study, we scrutinize the idea that dopamine is needed for the preferential consolidation of rewarded information. We blocked dopaminergic neurotransmission, thereby aiming to wipe out preferential sleep-dependent consolidation of high over low rewarded memories during sleep. Following a double-blind, balanced, crossover design 20 young healthy men received the dopamine d2-like receptor blocker Sulpiride (800 mg) or placebo, after learning a Motivated Learning Task. The task required participants to memorize 80 highly and 80 lowly rewarded pictures. Half of them were presented for a short (750 ms) and a long duration (1500 ms), respectively, which enabled to dissociate effects of reward on sleep-associated consolidation from those of mere encoding depth. Retrieval was tested after a retention interval of 20 h that included 8 h of nocturnal sleep. As expected, at retrieval, highly rewarded memories were remembered better than lowly rewarded memories, under placebo. However, there was no evidence for an effect of blocking dopaminergic neurotransmission with Sulpiride during sleep on this differential retention of rewarded information. This result indicates that dopaminergic activation is not required for the preferential consolidation of reward-associated memory. Rather it appears that dopaminergic activation only tags such memories at encoding for intensified reprocessing during sleep.

scholarly journals Consolidation of Reward Memory during Sleep Does Not Require Dopaminergic Activation

2020 ◽  
Vol 32 (9) ◽  
pp. 1688-1703 ◽  
Author(s):  
Marjan Alizadeh Asfestani ◽  
Valentin Brechtmann ◽  
João Santiago ◽  
Andreas Peter ◽  
Jan Born ◽  
...  
Keyword(s):  
Learning Task ◽  
Reward Learning ◽  
Nocturnal Sleep ◽  
Double Blind ◽  
Dopaminergic Neurotransmission ◽  
Msec Duration ◽  
Differential Retention ◽  
Better Than ◽  
Dopaminergic Activation

Sleep enhances memories, especially if they are related to future rewards. Although dopamine has been shown to be a key determinant during reward learning, the role of dopaminergic neurotransmission for amplifying reward-related memories during sleep remains unclear. In this study, we scrutinize the idea that dopamine is needed for the preferential consolidation of rewarded information. We impaired dopaminergic neurotransmission, thereby aiming to wipe out preferential sleep-dependent consolidation of high- over low-rewarded memories during sleep. Following a double-blind, balanced, crossover design, 17 young healthy men received the dopamine d2-like receptor blocker sulpiride (800 mg) or placebo, after learning a motivated learning task. The task required participants to memorize 80 highly and 80 lowly rewarded pictures. Half of them were presented for a short (750 msec) and a long (1500 msec) duration, respectively, which permitted dissociation of the effects of reward on sleep-associated consolidation from those of mere encoding depth. Retrieval was tested after a retention interval of approximately 22 hr that included 8 hr of nocturnal sleep. As expected, at retrieval, highly rewarded memories were remembered better than lowly rewarded memories, under placebo. However, there was no evidence for an effect of reducing dopaminergic neurotransmission with sulpiride during sleep on this differential retention of rewarded information. This result indicates that dopaminergic activation likely is not required for the preferential consolidation of reward-associated memory. Rather, it appears that dopaminergic activation only tags such memories at encoding for intensified reprocessing during sleep.

The role of nitric oxide on glutaminergic modulation of dopaminergic activation

2005 ◽  
Vol 52 (4) ◽  
pp. 298-301 ◽  
Author(s):  
Jin-Tae Hong ◽  
Hyoung-Chun Kim ◽  
Hack-Seang Kim ◽  
Yong-Moon Lee ◽  
Ki-Wan Oh
Keyword(s):  
Nitric Oxide ◽  
Dopaminergic Activation

scholarly journals Behavioral Analysis of Dopaminergic Activation in Zebrafish and Rats Reveals Similar Phenotypes

2016 ◽  
Vol 7 (5) ◽  
pp. 633-646 ◽  
Author(s):  
Fredrik Ek ◽  
Marcus Malo ◽  
Madelene Åberg Andersson ◽  
Christoffer Wedding ◽  
Joel Kronborg ◽  
...  
Keyword(s):  
Behavioral Analysis ◽  
Dopaminergic Activation

Antidepressant-like effect of creatine in mice involves dopaminergic activation

2012 ◽  
Vol 26 (11) ◽  
pp. 1489-1501 ◽  
Author(s):  
Mauricio P Cunha ◽  
Daniele G Machado ◽  
Juliano C Capra ◽  
Jardel Jacinto ◽  
Luis EB Bettio ◽  
...  
Keyword(s):  
Dopaminergic Activation
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