|
|
||||||||
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 Graduate School Neurosciences, Amsterdam, The Netherlands; Department of Anatomy, Vrije Universiteit Medical Center, Amsterdam, The Netherlands
2 Department of Anatomy, Vrije Universiteit Medical Center, Amsterdam, The Netherlands
3 Graduate School Neurosciences, Amsterdam, The Netherlands; Swammerdam Institute for Life Sciences, Department of Animal Physiology and Cognitive Neuroscience, University of Amsterdam, Amsterdam, The Netherlands
* To whom correspondence should be addressed. E-mail: s-taverna{at}northwestern.edu.
One of the current hypotheses on dopamine in the physiology of motivation posits that this neurotransmitter regulates filtering and selection of inputs to the nucleus accumbens. The effects of dopamine (100 µM) and the D1-receptor agonist SKF 38393 (20-50 µM) on GABAergic synaptic transmission between pairs of principal cells of rat nucleus accumbens were studied by using simultaneous dual patch-clamp recordings in acutely prepared brain slices. Both compounds attenuated postsynaptic responses induced by presynaptic firing and this effect was reversed by the D1-receptor antagonist SCH 23390 (25 µM). This attenuating effect of dopamine D1 receptors may act to diminish competitive interactions between single projection neurons or ensembles in the nucleus accumbens.
This article has been cited by other articles:
![]() |
S. Taverna, E. Ilijic, and D. J. Surmeier Recurrent Collateral Connections of Striatal Medium Spiny Neurons Are Disrupted in Models of Parkinson's Disease J. Neurosci., May 21, 2008; 28(21): 5504 - 5512. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. T. Moyer, J. A. Wolf, and L. H. Finkel Effects of Dopaminergic Modulation on the Integrative Properties of the Ventral Striatal Medium Spiny Neuron J Neurophysiol, December 1, 2007; 98(6): 3731 - 3748. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Gustafson, E. Gireesh-Dharmaraj, U. Czubayko, K. T. Blackwell, and D. Plenz A Comparative Voltage and Current-Clamp Analysis of Feedback and Feedforward Synaptic Transmission in the Striatal Microcircuit In Vitro J Neurophysiol, February 1, 2006; 95(2): 737 - 752. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH |
| Visit Other APS Journals Online |