JMIR Formative Research
August 16, 2023
Grant Jones, Felipe Herrmann, Matthew K. Nock
7 citations
A digital music-based mindfulness intervention significantly reduced race-based anxiety in middle-to-low-income Black Americans. The web-based study used a nonconcurrent multiple-baseline design with five participants and featured contributions from a meditation teacher and a former presidential speechwriter. State anxiety decreased substantially after the intervention, with Tau-U effect sizes ranging from -0.75 to -0.38. Feasibility and acceptability were high, with participants rating their likelihood of recommending the intervention at 98 out of 100 on average. The intervention was designed to overcome common barriers to mindfulness treatments for Black Americans, such as high costs, time commitments, and limited cultural relevance.
Addictive behaviors reports
December 1, 2023
Grant Jones, Felipe Herrmann, Erica Wang
6 citations
Lifetime use of PCP is most strongly linked to hallucinogen dependence or abuse, increasing odds more than sixfold, while LSD, ketamine, and mescaline also raise odds of certain diagnostic criteria. Among 5,252 recent hallucinogen initiates, PCP use was associated with over six times higher odds of hallucinogen dependence or abuse (adjusted odds ratio 6.27), and it increased odds on all three main dependence and abuse criteria. LSD increased odds on two criteria, and ketamine and mescaline each increased odds on one criterion. MDMA, psilocybin, and peyote showed no significant associations. The findings suggest specific hallucinogens differ substantially in their links to disordered use.
Journal of Medical Internet Research
October 12, 2023
Grant Jones, Franchesca Castro-Ramirez, Taylor Mcguire et al.
3 citations
A brief digital music-based mindfulness intervention called 'healing attempt' is feasible and may help reduce race-based anxiety in the Black community. The study replicates and extends earlier findings, suggesting the intervention is acceptable and potentially effective for addressing anxiety related to racial experiences.
JMIR Formative Research
March 4, 2024
Grant Jones, Felipe Herrmann, Adam Bear et al.
2 citations
In a group of people who recently used psychedelics, increases in mindfulness were followed by improvements in well-being. The findings suggest that mindfulness may be a mechanism through which psychedelic experiences lead to positive mental health outcomes.
Journal of Psychiatric Research
November 1, 2025
Felipe Herrmann, Grant Jones, Daniel M Low et al.
Increases in meaning in life, agreeableness, mindfulness, and extraversion are the psychological changes most strongly linked to future improvements in well-being after naturalistic psychedelic use. Increases in mindfulness, emotional stability, and extraversion are most associated with later reductions in anxiety, while increased self-esteem is most tied to decreased depression. Mindfulness was the only variable ranking among the top three predictors for all three outcomes—well-being, anxiety, and depression. These differing psychological changes may explain the mental health benefits observed after psychedelic use.
JMIR Formative Research
November 24, 2023
Grant Jones, Franchesca Castro-Ramirez, Maha Al-Suwaidi et al.
A brief, digital, music-based mindfulness intervention called 'healing attempt' reduced state anxiety and increased mindfulness and self-compassion in four Black American adults with elevated race-based anxiety and little-to-no meditation experience. In a series of single-case experiments conducted via Zoom, the intervention showed high feasibility and acceptability, with an average likelihood of recommending it of 88 out of 100. The findings suggest that such a low-cost, culturally adaptable approach may help address barriers to mental health care in this population, though further trials are needed to test lasting effects.
Grant Jones, Felipe Herrmann, Adam Bear et al.
Changes in mindfulness predict later changes in well-being among people who recently used psychedelics. The finding suggests that increases in mindfulness may lead to improvements in well-being in this population.