Basal ganglia activity in pathological gambling: A fluorodeoxyglucose- positron emission tomography study

Stefano Pallanti, M. Mehmet Haznedar, Eric Hollander, Elizabeth M. Licalzi, Silvia Bernardi, Randall Newmark, Monte S. Buchsbaum

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Background: Pathological gambling (PG) is a disorder classified as an impulse control disorder (DSM-IV) bridging impulsive, compulsive and addictive behaviors. The striatum and thalamus are supposed to be involved in the pathophysiological substrate of these behaviors. An increased relative glucose metabolic rate (rGMR) in patients with a diagnosis of PG had previously been reported in the medial and orbitofrontal cortex. We extended our studies to include functional alterations of the striatum and thalamus in a cohort of patients with PG before and after treatment with lithium. Methods: Twenty-one patients with PG who met lifetime comorbid bipolar spectrum diagnoses and a comparison group of 21 age- and sex-matched controls underwent a baseline positron emission tomography (PET) scan. Sixteen of these patients entered a randomized double-blind placebo-controlled parallel-group-design trial of lithium and underwent a follow-up PET scan at week 10. Anatomical MRI were obtained and the structures outlined on consecutive axial slices. These individual hand-drawn templates were used to identify structures on the PET scan of each patient, and the rGMR was measured. Results: The PG patients had a decrement of the rGMR in the ventral parts of the striatum and thalamus, and an increment of the rGMR in the dorsal parts as compared with the controls. Lithium treatment increased the ventral caudate rGMR to a trend level in the patients, but had no effect on the metabolism of either the putamen or the thalamus. Conclusion: Because of their extensive connectivity to the frontal cortex, striatal and thalamic functional alteration may contribute to faulty decision making processes in PG patients. By increasing the ventral rGMR of the caudate nucleus, lithium treatment may reduce cognitive dysfunction and symptoms in PG patients.

Original languageEnglish (US)
Pages (from-to)132-138
Number of pages7
JournalNeuropsychobiology
Volume62
Issue number2
DOIs
StatePublished - Jul 2010
Externally publishedYes

Fingerprint

Gambling
Basal Ganglia
Positron-Emission Tomography
Thalamus
Lithium
Glucose
Disruptive, Impulse Control, and Conduct Disorders
Compulsive Behavior
Addictive Behavior
Corpus Striatum
Neurobehavioral Manifestations
Impulsive Behavior
Caudate Nucleus
Putamen
Frontal Lobe
Prefrontal Cortex
Diagnostic and Statistical Manual of Mental Disorders
Decision Making
Therapeutics
Hand

Keywords

  • Lithium
  • Pathological gambling
  • Relative glucose metabolic rate
  • Striatum
  • Thalamus

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Neuropsychology and Physiological Psychology
  • Biological Psychiatry
  • Medicine(all)

Cite this

Pallanti, S., Haznedar, M. M., Hollander, E., Licalzi, E. M., Bernardi, S., Newmark, R., & Buchsbaum, M. S. (2010). Basal ganglia activity in pathological gambling: A fluorodeoxyglucose- positron emission tomography study. Neuropsychobiology, 62(2), 132-138. https://doi.org/10.1159/000317286

Basal ganglia activity in pathological gambling : A fluorodeoxyglucose- positron emission tomography study. / Pallanti, Stefano; Haznedar, M. Mehmet; Hollander, Eric; Licalzi, Elizabeth M.; Bernardi, Silvia; Newmark, Randall; Buchsbaum, Monte S.

In: Neuropsychobiology, Vol. 62, No. 2, 07.2010, p. 132-138.

Research output: Contribution to journalArticle

Pallanti, S, Haznedar, MM, Hollander, E, Licalzi, EM, Bernardi, S, Newmark, R & Buchsbaum, MS 2010, 'Basal ganglia activity in pathological gambling: A fluorodeoxyglucose- positron emission tomography study', Neuropsychobiology, vol. 62, no. 2, pp. 132-138. https://doi.org/10.1159/000317286
Pallanti, Stefano ; Haznedar, M. Mehmet ; Hollander, Eric ; Licalzi, Elizabeth M. ; Bernardi, Silvia ; Newmark, Randall ; Buchsbaum, Monte S. / Basal ganglia activity in pathological gambling : A fluorodeoxyglucose- positron emission tomography study. In: Neuropsychobiology. 2010 ; Vol. 62, No. 2. pp. 132-138.
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