Cited by 189Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesNeurological disorders and treatments

The role of dopamine in intracranial self-stimulation of the ventral tegmental area

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Fibiger, HC, LePiane, FG, Jakubovic, A, Phillips, AG·1987·The Journal of Neuroscience

Abstract

The role of dopaminergic (DA) neurons in brain stimulation reward produced by electrical stimulation of the ventral tegmental area (VTA) was investigated in the rat. In the first experiment, extensive 6- hydroxydopamine lesions of the ascending fibers of the mesotelencephalic DA projections resulted in significant changes in intracranial self-stimulation (ICS) rate-current intensity functions when the lesion was ipsilateral to the stimulating electrode. Similar contralateral lesions had no effect on these functions, thus ruling out lesion-induced performance deficits as being responsible for the decreases in ICS rates across the wide range of current intensities that occurred after the ipsilateral lesions. In the second experiment, ICS obtained from electrodes in the VTA resulted in significant increases in the DA metabolites, 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid (HVA) in the striatum, nucleus accumbens, and olfactory tubercle ipsilateral to the stimulating electrode. The ratios of DOPAC and HVA to DA, considered to be indices of DA utilization, were also increased in these brain regions ipsilateral to the electrode. No changes were observed in the contralateral striatum, nucleus accumbens, and olfactory tubercle. Similar increases were observed in stimulated “yoked” animals that received brain stimulation at identical rates and currents but did not lever-press for this stimulation. The third experiment examined the effects of lever- pressing for food on an FR8 schedule of reinforcement on DA utilization in the striatum, nucleus accumbens, and olfactory tubercle. Despite high rates of responding, no effects were observed on DOPAC:DA or HVA:DA ratios in these brain regions.

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Crossref · 10.1523/jneurosci.07-12-03888.1987

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Research works printed but not linked: 2

  1. Fibiger, H. C., and A. G. Phillips (1986) Reward, motivation and cognition: Psychobiology of mesotelencephalic dopamine systems. In Handbook ofPhysiology: The Nervous System ZV, F. E. Bloom and S. R. Geiger, eds., pp. 647-675, American Physiological Society, Be- thesda, MD.
  2. Seiden, L. S., and T. G. Heffner (1984) Alteration of brain catechol- amine metabolism by environmental and behavioral events: An ex- planation of drug-behavior interactions. In Catecholamines: Neuro- pharmacology and Central Nervous System-Therapeutic Aspects, E. Usdin, ed., pp. 275-284, Liss, New York.

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Authors
Fibiger, H., LePiane, F., Jakubovic, A., & Phillips, A.
Affiliations
University of British Columbia (CA)
Venue
The Journal of Neuroscience
Published
1987-12-01
Volume
7
Issue
12
Pages
3888-3896
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1669836444
Cited by
189
References
32
Citations by year
2026: 2 · 2025: 2 · 2024: 4 · 2022: 6 · 2021: 2 · 2020: 7 · 2019: 5 · 2018: 2 · 2017: 3 · 2016: 5 · 2015: 8 · 2014: 7 · 2013: 7 · 2012: 5
FWCI
3.20
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Medical Research Council Canada
  • Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
dopamine, ventral tegmental area, intracranial self-stimulation, brain stimulation reward, 6-hydroxydopamine lesion, DOPAC, homovanillic acid, dopamine utilization, striatum, nucleus accumbens, olfactory tubercle, food reinforcement, lever pressing
MeSH terms
Animals, Brain Diseases, Corpus Striatum, Dopamine, Electric Stimulation, Homovanillic Acid, Hydroxydopamines, Male, Nucleus Accumbens, Olfactory Bulb, Reinforcement, Psychology, Tegmentum Mesencephali, 3,4-Dihydroxyphenylacetic Acid, Oxidopamine, Rats

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