https://erowid.org/references/refs_view.php?ID=1864&S=phenylethylamine&SField=All
Erowid.org: Erowid Reference 1864 : Self-selected brain stimulation reward threshold modified by...
The Index page for the reference article: Stein L Self-selected brain stimulation reward threshold modified by drugs Federation Proc. 1960 19:264
brain stimulation rewarderowid orgself selected
https://www.erowid.org/references/refs_view.php?ID=1864&S=reward&SField=All
Erowid.org: Erowid Reference 1864 : Self-selected brain stimulation reward threshold modified by...
The Index page for the reference article: Stein L Self-selected brain stimulation reward threshold modified by drugs Federation Proc. 1960 19:264
brain stimulation rewarderowid orgself selected