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Related Experiment Video

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Presynaptic Dopamine Dynamics in Striatal Brain Slices with Fast-scan Cyclic Voltammetry
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Does human presynaptic striatal dopamine function predict social conformity?

Paul R A Stokes1, Aaf Benecke, Julita Puraite

  • 11Centre for Neuropsychopharmacology, Division of Brain Sciences, Department of Medicine, Imperial College London, London, UK.

Journal of Psychopharmacology (Oxford, England)
|November 22, 2013
PubMed
Summary
This summary is machine-generated.

Socially desirable responding (SDR) is not linked to presynaptic dopamine function in the striatum. This suggests that social conformity

Keywords:
PET[18F]-DOPAdopaminepersonalitysocial conformity

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Area of Science:

  • Neuroscience
  • Psychology
  • Dopamine Neurotransmission

Background:

  • Socially desirable responding (SDR) involves presenting oneself positively (impression management) or viewing oneself positively (self-deceptive enhancement).
  • Previous studies link SDR to dopamine D₂/₃ receptor availability in the dorsal striatum.
  • The exact role of dopamine in SDR, whether receptor availability or synaptic levels, remains unclear.

Purpose of the Study:

  • To investigate the association between SDR and presynaptic dopamine function.
  • To determine if striatal [¹⁸F]-DOPA uptake correlates with SDR, impression management (IM), or self-deceptive enhancement (SDE).

Main Methods:

  • Utilized a [¹⁸F]-DOPA positron emission tomography (PET) image database from two healthy participant cohorts (n=27 and n=19).
  • Measured presynaptic dopamine function via striatal [¹⁸F]-DOPA uptake (k(i)(cer), min⁻¹) using Patlak analysis with a cerebellar reference region.
  • Assessed SDR using the Eysenck Personality Questionnaire-Revised (EPQ-R) Lie scale, and IM/SDE using the Paulhus Deception Scales.

Main Results:

  • No significant associations were found between Lie, SDE, or IM scores and striatal [¹⁸F]-DOPA uptake (k(i)(cer)).
  • Presynaptic striatal dopamine function did not correlate with measures of socially desirable responding.

Conclusions:

  • Presynaptic striatal dopamine function is not associated with social conformity.
  • The link between SDR and the striatum may be related to dopamine D₂/₃ receptor expression rather than synaptic dopamine levels.