Disentangling three valence-related dimensions of emotion valuation: The good, the pleasant, and the desirable.

People place value on emotion categories that inform which emotions to cultivate and which to regulate in life. Here, we examined how people's beliefs about emotion categories varied along three valence-related dimensions: evaluation (good, bad), hedonic feeling (pleasure, displeasure), and desirability (want to feel, do not want to feel). In Studies 1A and 1B, we found that evaluative (good/bad) and hedonic (pleasant/unpleasant) ratings were distinct for certain emotions including lust, anger, shame, fear, and guilt.

Sinful pleasures and pious woes? Using fMRI to examine evaluative and hedonic emotion knowledge.

Traditionally, lust and pride have been considered pleasurable, yet sinful in the West. Conversely, guilt is often considered aversive, yet valuable. These emotions illustrate how evaluations about specific emotions and beliefs about their hedonic properties may often diverge.

Dietary Supplementation with Omega-3 Polyunsaturated Fatty Acids Reduces Opioid-Seeking Behaviors and Alters the Gut Microbiome.

Opioids are highly addictive substances with a relapse rate of over 90%. While preclinical models of chronic opioid exposure exist for studying opioid dependence, none recapitulate the relapses observed in human opioid addiction. The mechanisms associated with opioid dependence, the accompanying withdrawal symptoms, and the relapses that are often observed months or years after opioid dependence are poorly understood.