International Journal of Neuropsychopharmacology
September 9, 2026
V Bruno, M Lopez-Canul, B Richardson et al.
Abstract Background Psilocybin has shown therapeutic potential for several neuropsychiatric disorders; however, concerns remain regarding its abuse liability and long-term neurobiological effects following repeated use. While acute psychedelic administration is generally considered to have low addictive potential, the consequences of repeated exposure on reward processing, withdrawal-related...
Psychopharmacology
October 31, 2025
Vítor Bruno, Lídia Emmanuela Wiazowski Spelta, Matheus Lujan Pereira et al.
Ayahuasca is a brew containing the psychedelic compound N,N-dimethyltryptamine (DMT) and β-carbolines, traditionally consumed in indigenous rituals. Recent studies suggest its potential to reduce depression and anxiety and as an alternative for treating ethanol and tobacco use disorders. However, research on its impact on cocaine use disorder remains limited. To analyze the rewarding effects of...
Journal of Psychopharmacology
September 22, 2025
Vítor Bruno, Martha López-canul, Brandon Richardson et al.
3 citations
Background: In recent years, there has been a resurgence of scientific interest in psychedelics, including psilocybin, for their potential in treating neuropsychiatric disorders. However, the reward-related effects of psilocybin and its impact on behavior remain underexplored. Aims: We aimed to evaluate the potential rewarding effects of high doses of psilocybin and its effects on rat behavior....
The International Journal of Neuropsychopharmacology
August 1, 2025
Valeria Bruno, Bruce Richardson, Martha López-canul et al.
Abstract Background Recent years have seen renewed scientific interest in psychedelics, including psilocybin, for their potential in treating neuropsychiatric disorders. However, the reward-related properties and behavioral impacts of a high dose of psilocybin remain insufficiently explored. Aims & Objectives Assessing the potential rewarding properties of a high dose of psilocybin (10 mg/kg...
Research Square
July 25, 2025
Vítor Bruno, Lídia Emmanuela Wiazowski Spelta, Matheus Lujan Pereira et al.
Abstract Ayahuasca is a psychedelic brew used for centuries in religious rituals by indigenous cultures. Recent studies suggest its potential to reduce depression and anxiety and as an alternative for treating ethanol and tobacco use disorders. However, research on its impact on cocaine use disorder remains limited. We investigated the effects of ayahuasca on the reinstatement of...
Behavioural Brain Research
August 23, 2021
Carolina Aparecida Faria Almeida, Antônio Alves Pereira-Júnior, Jéssica Gonçalves Rangel et al.
33 citations
Alcohol use disorder needs more effective treatments because relapse rates remain high. Psychedelics, such as ayahuasca, have been used to treat substance use disorders. Our study aimed to evaluate the effects of ayahuasca on ethanol-induced behavioral sensitization (EIBS). Swiss mice received 2.2 g/kg ethanol or saline IP injections every other day across nine days (D1, D3, D5, D7, and D9),...