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Addiction: all studies

Page 483 of 857: studies 4,821 to 4,830 of 8,563, newest first. Back to the addiction overview

Research

Ibogaine-Mediated ROS/Antioxidant Elevation in Isolated Rat Uterus Is β-Adrenergic Receptors and KATP Channels Mediated.

Antioxidants (Basel, Switzerland) November 9, 2021 Nikola Tatalović, Teodora Vidonja Uzelac, Zorana Oreščanin-dušić et al. 5 citations

Ibogaine effects are mediated by cellular receptors, ATP depletion followed by ROS production and antioxidant enzyme activity elevation in a dose and time dependent manner. Since the role of KATP channels and β-adrenoceptors in ROS cellular circuit was established here we explored their role in ibogaine pro-antioxidant effectiveness. Single dose of ibogaine (10 mg/L i.e., 28.8 μmol/L) was...

DOI: 10.3390/antiox10111792 (opens in new tab) Full text (opens in new tab) Katp channels Antioxidative enzymes Catalase Contractility +6

Psychedelic use is associated with reduced daily opioid use among people who use illicit drugs in a Canadian setting.

International Journal of Drug Policy November 7, 2021 Elena Argento, M Eugenia Socias, Kanna Hayashi et al.

Background: Research into the therapeutic and naturalistic uses of psychedelics for improving outcomes related to mental health disorders has generated increasing interest in recent years. While controlled clinical trials of psychedelics have signaled benefits for treating substance use disorders, this area has not been well studied in the context of naturalistic psychedelic use. This study...

DOI: 10.1016/j.drugpo.2021.103518 (opens in new tab) Full text (opens in new tab) Humans Opioid-related disorders Analgesics, opioid Hallucinogens +7

Investigating the influence of meditation style and practitioner experience on change blindness using a flicker-paradigm.

November 5, 2021 E. Flynn preprint

Change blindness engenders an inability to detect changes made to a visual scene and has negative implications for areas such as road safety and eye-witness memory. Therefore, it’s important to find ways of reducing change blindness to create a safer society. One way this might be achieved is through the practice of meditation. Regular practice of meditation may reduce the effects of change...

Baseline Power of Theta Oscillations Predicts Mystical-Type Experiences Induced by DMT in a Natural Setting

Frontiers in Psychiatry November 5, 2021 Enzo Tagliazucchi, Federico Zamberlán, Federico Cavanna et al. 23 citations

N,N-Dimethyltryptamine (DMT) is a classic psychedelic capable of inducing short-lasting but profound changes in consciousness. As with other psychedelics, the experience induced by DMT strongly depends upon contextual factors, yet the neurobiological determinants of this variability remain unknown. The present study investigated changes in neural oscillations elicited by inhaled DMT, and...

DOI: 10.3389/fpsyt.2021.720066 (opens in new tab) Electroencephalography Consciousness Feeling Audiology +1

Harmine impairs memory performance of treated rats and nontreated cagemates.

Experimental and Clinical Psychopharmacology November 4, 2021 Tânia Cristina Libânio, R. Eufrásio, Suzy S Niigaki et al. 6 citations

The interest in psychedelic substances as potential treatments for psychiatric disorders is increasing. The β-carboline harmine, an Ayahuasca component, presents hallucinogenic and antidepressant effects. Although Ayuahuasca-and consequently harmine-is usually consumed in rituals, the role of social contexts in the behavioral effects of harmine has not been investigated yet. In this sense,...

Psychedelic experience dose-dependently modulated by cannabis: results of a prospective online survey.

Psychopharmacology November 4, 2021 Joanna Kuć, Hannes Kettner, Fernando E. Rosas et al. 37 citations

RATIONALE: Classic psychedelics are currently being studied as novel treatments for a range of psychiatric disorders. However, research on how psychedelics interact with other psychoactive substances remains scarce. OBJECTIVES: The current study aimed to explore the subjective effects of psychedelics when used alongside cannabis. METHODS: Participants (n = 321) completed a set of online surveys...

DOI: 10.1007/s00213-021-05999-1 (opens in new tab) Full text (opens in new tab) Psychedelics Cannabis/marijuana/weed Drug interactions Altered states +1

Predictive Feedback, Early Sensory Representations, and Fast Responses to Predicted Stimuli Depend on NMDA Receptors

Journal of Neuroscience November 3, 2021 Sounak Mohanta, Mohsen Afrasiabi, Cameron P Casey et al. 15 citations

Learned associations between stimuli allow us to model the world and make predictions, crucial for efficient behavior (e.g., hearing a siren, we expect to see an ambulance and quickly make way). While there are theoretical and computational frameworks for prediction, the circuit and receptor-level mechanisms are unclear. Using high-density EEG, Bayesian modeling, and machine learning, we show...

Lysergic acid diethylamide induces increased signalling entropy in rats’ prefrontal cortex

Journal of Neurochemistry November 3, 2021 Aurora Savino, Charles D. Nichols 18 citations

Abstract Psychedelic drugs are gaining attention from the scientific community as potential new compounds for the treatment of psychiatric diseases such as mood and substance use disorders. The 5‐HT 2A receptor has been identified as the main molecular target, and early studies pointed to an effect on the expression of neuroplasticity genes. Analysing RNA‐seq data from the prefrontal cortex of...

NATURE OF COGNITIVE EXPERIENCE: UNITY OF PERCEPTION, THINKING, BODY AND LANGUAGE

Studia Humanitatis November 1, 2021 Alexey Volkov

The article analyzes the nature of cognitive experience in the context of non-classical epistemology and critically interprets the dogmatic concept of cognitive process as a special form of reality reflection. Borrowing his arguments from neurobiology, cognitive science and cross-cultural studies, the author makes the following conclusions: the modular architecture of perceptual systems and...

Alpha and theta oscillations are inversely related to progressive levels of meditation depth

Neuroscience of Consciousness November 1, 2021 S. Katyal, P. Goldin

Abstract Meditation training is proposed to enhance mental well-being by modulating neural activity, particularly alpha and theta brain oscillations, and autonomic activity. Although such enhancement also depends on the quality of meditation, little is known about how these neural and physiological changes relate to meditation quality. One model characterizes meditation quality as five...