27/02/2026
New paper out!
Really happy to share our latest work (led by Zsuzsanna Pesthy and Krisztina Berta), just published in Comprehensive Psychiatry:
Pesthy, Z. V., Berta, K., Vékony, T., Farkas, B. C., Németh, D., & Kun, B. (2026). Dissociating the cognitive underpinnings of recreational cannabis use from problematic use. Comprehensive Psychiatry, 147, 152685.
https://doi.org/10.1016/j.comppsych.2026.152685
We tackled a simple but surprisingly unresolved question:
What actually differentiates recreational cannabis use from problematic use at the cognitive level?
The literature often treats “cannabis users” as one group. But that’s clearly not how the real world works.
So we took a broader approach—looking at both executive functions and implicit learning, and more importantly, how they interact.
What did we find?
❗ No global cognitive deficit in cannabis users
❗ No impairment in implicit learning
❗ No clear deficits in inhibition or flexibility
👉 Instead, one very specific difference emerged:
People with problematic use showed reduced complex working memory capacity.
That’s it.
Not a general breakdown of cognition. Not a collapse of control.
A selective vulnerability.
Congrats, Zsuzsi Pesthy Krisztina Berta Teodóra Vékony Bernadette Kun Bence Farkas !!!