Related Experiment Video
Updated: Sep 12, 2025

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Creating Dynamic Images of Short-lived Dopamine Fluctuations with lp-ntPET: Dopamine Movies of Cigarette Smoking
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Missed signals: How PET imaging may fail to capture the addictive potential of ultra-processed foods
Nicole M Avena1, Mark S Gold2, Ashley N Gearhardt3
1Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Psychology, Princeton University, Princeton, NJ, USA.
Cell Metabolism
|August 6, 2025
Abstract:
Avena et al. argue that methodological limitations in PET imaging and study design led to underestimating the addictive potential of ultra-processed foods, which-like nicotine or alcohol-may trigger dopamine responses not easily detected by PET scans.

