Skip to main content
Log in

Altered orbitofrontal activity and dorsal striatal connectivity during emotion processing in dependent marijuana users after 28 days of abstinence

  • Original Investigation
  • Published:
Psychopharmacology Aims and scope Submit manuscript

Abstract

Rationale

Intact cognitive and emotional functioning is vital for the long-term success of addiction treatment strategies. Accumulating evidence suggests an association between chronic marijuana use and lasting alterations in cognitive brain function. Despite initial evidence for altered emotion processing in dependent marijuana users after short abstinence periods, adaptations in the domain of emotion processing after longer abstinence remain to be determined.

Objective and methods

Using task-based and resting state fMRI, the present study investigated emotion processing in 19 dependent marijuana users and 18 matched non-using controls after an abstinence period of > 28 days.

Results

Relative to the control subjects, negative emotional stimuli elicited increased medial orbitofrontal cortex (mOFC) activity and stronger mOFC-dorsal striatal and mOFC-amygdala functional coupling in dependent marijuana users (p < 0.022, FWE-corrected). Furthermore, mOFC-dorsal striatal functional connectivity was increased at rest in marijuana users (p < 0.03, FWE-corrected). Yet, processing of positive stimuli and subjective ratings of valence and arousal were comparable in both groups.

Conclusions

Together, the present findings provide the first evidence for persisting emotion processing alterations in dependent marijuana users. Alterations might reflect long-term neural adaptations as a consequence of chronic marijuana use or predisposing risk factors for the development of marijuana dependence.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

Download references

Acknowledgements

We thank Paul Jung and Laura Schinabeck for their excellent technical support. Kaeli Zimmermann and Shuxia Yao contributed equally to this work.

Funding

This work was supported by the German Research Foundation (DFG, grant: BE5465/2-1, Becker; HU1302/4-1, Hurlemann) and the National Natural Science Foundation of China (NSFC, grant: 91632117, Becker).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Benjamin Becker.

Ethics declarations

All subjects gave written informed consent before study inclusion. The study was in accordance with the latest revision of the Declaration of Helsinki, had full ethical approval by the local ethics committee of the medical faculty, University of Bonn (Application Number: 220/12), and was registered as clinical trial (NCT02711371, https://clinicaltrials.gov/ct2/show/NCT02711371).

Conflict of interest

The authors declare that they have no competing interests.

Electronic supplementary material

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zimmermann, K., Yao, S., Heinz, M. et al. Altered orbitofrontal activity and dorsal striatal connectivity during emotion processing in dependent marijuana users after 28 days of abstinence. Psychopharmacology 235, 849–859 (2018). https://doi.org/10.1007/s00213-017-4803-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00213-017-4803-6

Keywords

Navigation