Motivation and EmotionSeptember 9, 2026Abhishek Aggarwal, Xiyue Zhang, Joran Jongerling et al.
Abstract Momentary positive affect (PA) and negative affect (NA) are dynamic, modifiable indicators of mental health in daily life that are associated with psychological well-being and psychopathology. Although mindfulness is consistently associated with better affective well-being, the momentary mechanisms linking state mindfulness to affect remain unclear. This study tested whether momentary...
Marijuana is believed to increase impulsivity and risk taking, but the processes whereby it affects such behaviors are not understood. Indeed, either the pharmacologic effect of delta-9-tetrahydrocannabinol (THC) or the expectancy of receiving it may lead to deficits in cognitive processing and increases in risk taking. We examined the relative effects of expecting to receive active marijuana...
Although alcohol and nicotine administration studies have demonstrated that manipulating subjects' expectancies regarding drug content affects drug response, research with marijuana has not adequately studied drug expectancy effects. The present pilot study was the first to evaluate the credibility and effect of expectancy manipulation on subjective measures and smoking patterns using a...