Abstract: Background: Psychedelic-assisted therapy is increasingly being explored as potential treatment for substance use disorders (SUDs). While multiple systematic reviews and meta-analyses have examined this topic, the efficacy, methodological quality, and overlap of the existing evidence base remain unclear. Methods: We conducted an umbrella review of systematic reviews and meta-analyses...
Repetitive negative thinking (RNT), including rumination, plays a key role in various psychopathologies. Although several psychotherapeutic treatments have been developed to reduce RNT, the neural correlates of those specific treatments and of psychotherapy in general are largely unknown. Functional near-infrared spectroscopy (fNIRS) offers the potential to investigate the neural correlates of...