Rachel Cherry

Differences between males and females in psychostimulant/sucrose self-administration (when observed) may not necessarily be driven by biological sex.

This study validates the MISSING model by showing that sex differences in drug self-administration may arise from individual variability rather than biological sex.

The recreational-to-habitual shift in psychostimulant use is an economic demand parameter that is unrelated to drug consumption levels (under normal and punishment conditions).

The study develops a behavioral economic model to assess the recreational-to-habitual shift in drug use and finds it is unrelated to drug intake under normal and punishment conditions.