Daniel Zalewa’s research while affiliated with University of Ottawa and other places

Individuals with a history of psychotic experiences and disorders such as schizophrenia, and mood disorders with psychotic features tend to be excluded from psychedelic-assisted therapy research and treatment programs, despite minimal research demonstrating heightened risk of adverse effects for this group. Participants (n = 100) were asked to complete an online, retrospective survey that asked about psychotic experiences and/or diagnoses and one memorable psychedelic experience, along with mental health histories, dose used, set and setting, and other relevant variables including whether they mixed their psychedelic with other substances. Respondents also completed pertinent psychometric questionnaires and answered questions regarding the impact of their psychedelic experience on their well-being, mental health, relationships, spiritual beliefs, and aspects of their life. Thematic inductive analysis was used to identify recurring themes. Most respondents (n = 88) stated that their psychedelic experience resulted in some degree of personal growth. Many also described mystical-type experiences, increased levels of contemplation and spirituality, improved insight, symptomatic improvements, and feelings of love and appreciation following the experience. Most described overall positive experiences, however, 11% (n = 11) described overall negative experiences, which included symptom exacerbation, dysphoria, and terror, and a slightly larger portion described mixed-type experiences.

Background This study contributes to the understanding of the efficacy, safety, and experience of ketamine-assisted therapy. The paper documents how individuals describe the effects of a protocolized and personalized use of ketamine (‘the relational dose’) in the context of group couples therapy based on Imago Relationship Therapy (IRT). Little is known about simultaneously administering ketamine to both members of a couple in this context, and no research to date has been published on whether ketamine facilitates couples to better engage in and benefit from the therapeutic process. The paper includes both qualitative and quantitative results. Method The study utilized a mixed methods approach. One approach was an inductive content analysis that produced overarching themes gleaned from participants' check-ins pre and post their weekly ketamine sessions. Transcripts were examined to better understand ketamine's effects on couples' ability to engage in therapeutic dialogue and resolve challenging relationship issues, as well as themes related to the non-ordinary-state-of-consciousness (NOSC) experience. The second approach involved the analysis of pre-test, post-test, and follow-up data from the Couples Satisfaction Index (CSI). Results The couples described a wide range of effects that ketamine produced in the context of their relational dialoguing including: empathogenic effects, mystical/spiritual/psychedelic experiences, anxiolytic and antidepressant effects. They also affirmed ketamine's ability to generate alternative perspectives, promote insight, heighten awareness, enhance vulnerability and communication, lower defenses, and produce novel somatic experiences. Participants' description of ketamine effects included its short duration, rapid onset, idiosyncratic sensitivity to dose, cumulative effects, as well as transient and mild side-effects. Several t-tests were statistically significant, and indicated improved relationship satisfaction following the treatment. Conclusion In the context of couples therapy, ketamine produced a wide range of therapeutic effects and possessed unique pharmacological properties as a rapid-acting novel psychoactive molecule. The drug may have profound therapeutic benefits when administered in the context of couples therapy, under clinical supervision, however more research should be carried out.

There is a growing body of literature demonstrating that experiences of oppression (e.g., racism, sexism, heterosexism, poverty) are associated with posttraumatic stress disorder symptoms. Traditional trauma assessments do not assess experiences of oppression and it is therefore imperative to develop instruments that do. To assess oppression-based traumatic stress broadly, and in an intersectional manner, we have developed the oppression-based traumatic stress inventory (OBTSI). The OBTSI includes two parts. Part A comprises open-ended questions asking participants to describe experiences of oppression as well as a set of questions to determine whether Criterion A for PTSD is met. Part B assesses specific posttraumatic stress symptoms anchored to the previously described experiences of oppression and also asks participants to identify the various types of discrimination they have experienced (e.g., based on racial group, sex/gender, sexual orientation, etc.). Clients from a mental health clinic and an undergraduate sample responded to the OBTSI and other self-report measures of depression, anxiety, and traditional posttraumatic stress (N = 90). Preliminary analyses demonstrate strong internal consistency reliability for the overall symptom inventory (α = 0.97) as well as for the four symptom clusters of posttraumatic stress symptoms in the DSM-5 (α ranging from 0.86 to 0.94). In addition to providing descriptive information, we also assess the convergent validity between the OBTSI and measures of anxiety, depression, and traditional posttraumatic stress and examine the factor structure. This study provides preliminary evidence that the OBTSI is a reliable and valid method of assessing oppression-based traumatic stress symptoms.