By systematically tweaking the structure of the psychedelic compound ibogaine, chemists have created a molecule that may someday find use as a treatment for neuropsychiatric disorders, including depression and addiction. The compound, which the researchers call tabernanthalog, has a simpler structure than ibogaine, making it easier to synthesize. Researchers in David E. Olson’s lab at the...
Abstract 4-Bromo-2,5-dimethoxy-N-(2-methoxybenzyl)phenethylamine (25B-NBOMe) is a hallucinogen exhibiting high binding affinity for 5-HT 2A/C serotonin receptors. In the present work, we investigated its effect on dopamine (DA), serotonin (5-HT), acetylcholine (ACh), and glutamate release in the rat frontal cortex, striatum, and nucleus accumbens. Hallucinogenic activity, impact on cognitive...
Mounting evidence suggests safety and efficacy of psychedelic compounds as potential novel therapeutics in psychiatry. Ketamine has been approved by the Food and Drug Administration in a new class of antidepressants, and 3,4-methylenedioxymethamphetamine (MDMA) is undergoing phase III clinical trials for post-traumatic stress disorder. Psilocybin and lysergic acid diethylamide (LSD) are being...
Abstract Spiritual, religious, and secular traditions emphasize the importance of control over one’s thoughts, feelings and behavior, and the relevance of meditation in achieving this control. Meditation practices, in particular, can be understood as one strategy amongst others for achieving self-regulation. While the main focus in Western psychology has been on active instrumental control,...
Humans spend a considerable portion of their lives engaged in 'stimulus-independent thoughts' (SIT), or mental activity that occurs independently of input from the immediate external environment. Although such SITs are, by definition, different from thoughts that are driven by stimuli in one's external environment (i.e. stimulus-dependent thoughts; SDTs), at times, the phenomenology of these...
Attachment insecurity is determined early in life, is a risk factor for psychopathology, and can be measured on two separate continuous dimensions: attachment anxiety and attachment avoidance. Therapeutic changes toward more secure attachment correlate with reduction in psychiatric symptoms. Psilocybin-assisted psychotherapy has demonstrated promise in the treatment of psychopathology, such as...
Ketamine is a versatile agent primarily utilized as a dissociative anesthetic, which acts by blocking the excitatory receptor N-methyl-d-aspartate receptor (NMDA). It functions to inhibit the current of both Na+ and K+ voltage-gated channels, thus preventing serotonin and dopamine reuptake. Studies have indicated that administering a single subanesthetic dose of ketamine relieves depression...
Evidence indicating the relationship between trauma and substance use disorders (SUDs), in addition to relapse and treatment retention rates for this population, suggests there is a need for a trauma-focused solution to treat SUDs. Eye movement desensitization and reprocessing (EMDR) therapy has been studied extensively as an effective approach for treating trauma and Posttraumatic Stress...
Harm Reduction JournalDecember 1, 2020Jaimie P. Meyer, Gabriel J. Culbert, Lyuba Azbel et al.
Abstract: Background: To reduce opioid dependence and HIV transmission, Kyrgyzstan has introduced methadone maintenance therapy and needle/syringe programs into prisons. Illicit injection of diphenhydramine, an antihistamine branded as Dimedrol®, has been anecdotally reported as a potential challenge to harm reduction efforts in prisons but has not been studied systematically. Methods: We...
MindfulnessDecember 1, 2020Aleksandra Eriksen Isham, Adriana Del Palacio-Gonzalez, Barbara Dritschel
Abstract Objectives Depression is associated with both emotion dysregulation upon retrieval of autobiographical memories and low trait mindfulness. The present study raised the question of whether these processes are related to each other and whether they may reflect a cognitive-affective vulnerability in individuals at risk of depression. The study examined emotion regulation in response to...