TY - JOUR

T1 - Dual case study of continued use vs cessation of cannabis in psychosis

T2 - a theoretically informed approach to a hard problem

AU - Larsen, Jonathan Led

AU - Johansen, Katrine Schepelern

AU - Nordgaard, Julie

AU - Mehlsen, Mimi Yung

N1 - Publisher Copyright: © 2022, Emerald Publishing Limited.

PY - 2022

Y1 - 2022

N2 - Purpose: Cannabis use in the context of psychosis has been shown to have a negative impact on prognosis and yet it is difficult to treat. Recent randomized controlled trials all have negative findings and novel approaches is sought after. This paper aims to use an embodied cognition framework to add to the understanding of cannabis use in psychosis. Design/methodology/approach: The paper presents longitudinal, qualitative data on two individuals diagnosed with schizophrenia and using cannabis at least twice weekly prior to inclusion in the study. Factors influencing cannabis use were mapped in dialogue with the participants. Each participant was interviewed six times over the course of a year. The analysis was informed theoretically to describe processes maintaining or ameliorating cannabis use over time. Findings: This study shows that a systems approach for understanding changes in cannabis use is meaningful; the richness of observations add to the understanding of differences in outcomes. Findings suggest that reductions in cannabis use in psychosis could be dependent on synergistic effects between contextual conditions. Attending closer to the experience of patients may help inform future interventions. However, interventions focusing on single mechanisms may be futile, if an array of individual, formative experiences are a prerequisite for change. A systemic understanding of dual diagnosis calls for tailored, individualized interventions. Originality/value: The research tests a novel systemic perspective on cannabis use in psychosis by applying it to qualitative longitudinal data. Adding a systemic perspective may help develop future interventions addressing cannabis use in psychosis, which has long been considered a “hard problem” in dual diagnosis treatment.

AB - Purpose: Cannabis use in the context of psychosis has been shown to have a negative impact on prognosis and yet it is difficult to treat. Recent randomized controlled trials all have negative findings and novel approaches is sought after. This paper aims to use an embodied cognition framework to add to the understanding of cannabis use in psychosis. Design/methodology/approach: The paper presents longitudinal, qualitative data on two individuals diagnosed with schizophrenia and using cannabis at least twice weekly prior to inclusion in the study. Factors influencing cannabis use were mapped in dialogue with the participants. Each participant was interviewed six times over the course of a year. The analysis was informed theoretically to describe processes maintaining or ameliorating cannabis use over time. Findings: This study shows that a systems approach for understanding changes in cannabis use is meaningful; the richness of observations add to the understanding of differences in outcomes. Findings suggest that reductions in cannabis use in psychosis could be dependent on synergistic effects between contextual conditions. Attending closer to the experience of patients may help inform future interventions. However, interventions focusing on single mechanisms may be futile, if an array of individual, formative experiences are a prerequisite for change. A systemic understanding of dual diagnosis calls for tailored, individualized interventions. Originality/value: The research tests a novel systemic perspective on cannabis use in psychosis by applying it to qualitative longitudinal data. Adding a systemic perspective may help develop future interventions addressing cannabis use in psychosis, which has long been considered a “hard problem” in dual diagnosis treatment.

KW - Abstinence

KW - Cannabis

KW - Change processes

KW - Developmental science

KW - Dual diagnosis

KW - Embodied cognition

KW - Experience

U2 - 10.1108/ADD-11-2021-0013

DO - 10.1108/ADD-11-2021-0013

M3 - Journal article

AN - SCOPUS:85124880561

VL - 15

SP - 22

EP - 36

JO - Advances in Dual Diagnosis

JF - Advances in Dual Diagnosis

SN - 1757-0972

IS - 1

ER -