Psychopharmacology

, Volume 180, Issue 4, pp 607–611

Memory-related hippocampal dysfunction in poly-drug ecstasy (3,4-methylenedioxymethamphetamine) users

  • Jörg Daumann
  • Thomas Fischermann
  • Karsten Heekeren
  • Katharina Henke
  • Armin Thron
  • Euphrosyne Gouzoulis-Mayfrank
Original Investigation

DOI: 10.1007/s00213-004-2002-8

Cite this article as:
Daumann, J., Fischermann, T., Heekeren, K. et al. Psychopharmacology (2005) 180: 607. doi:10.1007/s00213-004-2002-8

Abstract

Rationale

3,4-Methylenedioxymethamphetamine (MDMA, ecstasy) is neurotoxic in animal studies and its use has been associated with cognitive impairments in humans.

Objective

To study hippocampal activation during the retrieval from episodic memory in polyvalent users of ecstasy.

Methods

Twelve polyvalent ecstasy users and twelve matched controls were examined by means of functional magnetic resonance imaging (fMRI) while they retrieved face-profession associations from episodic memory.

Results

Ecstasy users had a normal structural MRI scan without focal brain lesions or anatomical abnormalities. They exhibited equal retrieval accuracy during memory retrieval to that of the matched controls. Yet, their retrieval-related activity was lower and more spatially restricted in the left anterior hippocampus than that of the controls.

Conclusions

These results provide evidence for abnormal hippocampal functioning in MDMA users even at the presence of normal memory performance. This finding may be linked to MDMA-induced neurotoxicity and suggests that diminished hippocampal activation during memory retrieval might be a more sensitive or earlier index of MDMA-related neurotoxicity than neuropsychological performance.

Keywords

3,4-MethylenedioxymethamphetamineMemoryHippocampusFunctional magnetic resonance imagingNeurotoxicitySerotonin

Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • Jörg Daumann
    • 1
  • Thomas Fischermann
    • 1
  • Karsten Heekeren
    • 1
  • Katharina Henke
    • 2
  • Armin Thron
    • 3
  • Euphrosyne Gouzoulis-Mayfrank
    • 1
  1. 1.Department of Psychiatry and PsychotherapyUniversity of CologneCologneGermany
  2. 2.Division of Psychiatry ResearchUniversity of ZurichZurichSwitzerland
  3. 3.Department of NeuroradiologyMedical Faculty of the University of Technology (RWTH)AachenGermany