GDGary M. Diamond

Gary M. Diamond

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Gary M. Diamond has a total of 64 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Parental In‐Session Behaviors and LGBTQ + Young Adults' Perceived Parental Rejection and Acceptance in Attachment‐Based Family Therapy

    by Rotem Boruchovitz‐Zamir, Eran Bar‐Kalifa, Gary M. Diamond

    This study examined whether decreases in parents' negative in‐session behaviors predicted reductions in LGBTQ+ young adults' perceived parental rejection and increases in their perceived parental acceptance over the course of attachment‐based family therapy for sexual and gender minority (ABFT‐SGM) young adults and their nonaccepting parents. A total of 126 videotaped sessions from 22 families who participated in an open clinical trial of ABFT‐SGM were coded to assess changes in parents' positive and negative in‐session behaviors. Young adults' perceived parental rejection and acceptance were measured at baseline, 8 weeks, 16 weeks, 24 weeks, and 36 weeks. In line with findings from the open clinical trial, on average, perceived parental rejection decreased and perceived parental acceptance increased over the course of therapy. For both mothers and fathers, decreases in negative in‐session behaviors moderated increases in young adults' perceived parental acceptance but not reductions in perceived parental rejection. Findings underscore the importance of reducing negative parental in‐session behaviors, such as criticism and invalidation, during conjoint sessions with their LGBTQ+ young adult.


  • Open Access

    Mentalization, emotional arousal and readiness to gather information in the context of an ongoing relational rupture

    by Yotam Strifler, Gary M. Diamond

    The ability to openly consider the mental states of others has been termed mentalizing and is crucial to maintaining interpersonal relationships. Theory and previous research findings suggest that emotional arousal may impact mentalization. This study examined whether the arousal associated with a relational rupture impacted young adults' ability to mentalize about their family member with whom they were in conflict. Fifty-four young adults were interviewed about an ongoing conflict with a significant family member. Average heart rate, skin conductance, and level of mentalization were measured at the speech-turn level. Results showed a curvilinear association between mean heart rate and reflective functioning (RF). No effects were found for skin conductance. Logistic regression showed RF scores predicted participants' readiness to engage in information gathering. Moderate emotional arousal was associated with higher RF, and those with higher RF were nearly twice as likely to be ready to gather new information from the other.


  • Open Access

    Family Support Protocol for Adolescent Internalizing Disorders: Protocol for a Pre-Post Quantitative Treatment Development Study

    by Aaron Hogue, Molly Bobek, Nicole P Porter, Alexandra MacLean, Craig E Henderson, Amanda Jensen-Doss, Gary M Diamond, Michael A Southam-Gerow, Jill Ehrenreich-May

    Background: Internalizing disorders (IDs), primarily depression and anxiety, are highly prevalent among adolescents receiving community-based treatment for substance use disorders (SUDs). For such clients, interventions that do not holistically address both SUDs and IDs are less effective. Objective: This pilot treatment development study aims to develop and test a modular treatment protocol for addressing cooccurring IDs among adolescents (aged 13 to 18 years) enrolled in routine care for substance use problems: Family Support Protocol for Adolescent Internalizing Disorders (Fam-AID). As an adjunctive protocol, Fam-AID will not require clinicians to markedly alter existing base practices for SUD. It will be anchored by 3 evidence-based foundations for treating cooccurring adolescent IDs: family engagement techniques, transdiagnostic individual cognitive behavioral therapy techniques, and family psychoeducation and safety planning. Methods: This quasi-experimental study will proceed in 2 stages. The pilot stage will use rapid-cycle prototyping methods in collaboration with end-user stakeholders to draft protocol delivery and fidelity guidelines adapted from existing resources, solicit provider and client input on protocol content and delivery via cognitive interviewing, and pilot prototype components on 4 to 6 cases. The second stage will be an interrupted time series study for 60 comorbid SUD+ID cases across 2 sites serving diverse adolescents: 30 will receive treatment as usual (TAU); following clinician training in the protocol, 30 new cases will receive TAU enhanced by Fam-AID. For aim 1, the focus is on evaluating the acceptability of the Fam-AID protocol through therapist and client interviews as well as assessing fidelity benchmarks using therapist- and observer-reported protocol fidelity data. For aim 2, the plan is to compare the effects of TAU only cases versus TAU+Fam-AID cases on family treatment attendance and on adolescent ID and substance use symptoms, with measurements taken at baseline and at 3-month and 6-month follow-ups. Results: Study recruitment will begin in April 2025. Conclusions: We anticipate that Fam-AID will contain 5 treatment modules that can be delivered in any sequence to meet client needs: family engagement of primary supports in treatment planning and services; relational reframing of family constraints, resiliencies, and social capital connected to the adolescent’s ID symptoms; functional analysis of the adolescent’s ID symptoms and related behaviors; cognitive behavioral therapy to address the adolescent’s ID symptoms and functional needs, featuring 3 core techniques (emotion acceptance, emotional exposure, and behavioral activation) to address negative affect and emotional dysregulation; and family psychoeducation and safety planning focused on education about comorbid SUD+ID and prevention of adolescent self-harm. If the abovementioned modules are found to be feasible and effective, Fam-AID will offer a set of pragmatic interventions to SUD clinicians for treating cooccurring IDs in adolescent clients. Trial Registration: ClinicalTrials.gov NCT06413979; https://www.clinicaltrials.gov/study/NCT06413979 International Registered Report Identifier (IRRID): PRR1-10.2196/64332


  • Open Access

    Family Support Protocol for Adolescent Internalizing Disorders: Protocol for a Pre-Post Quantitative Treatment Development Study (Preprint)

    by Aaron Hogue, Molly Bobek, Nicole P Porter, Alexandra MacLean, Craig E Henderson, Amanda Jensen-Doss, Gary M Diamond, Michael A Southam-Gerow, Jill Ehrenreich-May

    BACKGROUND Internalizing disorders (IDs), primarily depression and anxiety, are highly prevalent among adolescents receiving community-based treatment for substance use disorders (SUDs). For such clients, interventions that do not holistically address both SUDs and IDs are less effective. OBJECTIVE This pilot treatment development study aims to develop and test a modular treatment protocol for addressing cooccurring IDs among adolescents (aged 13 to 18 years) enrolled in routine care for substance use problems: Family Support Protocol for Adolescent Internalizing Disorders (Fam-AID). As an adjunctive protocol, Fam-AID will not require clinicians to markedly alter existing base practices for SUD. It will be anchored by 3 evidence-based foundations for treating cooccurring adolescent IDs: family engagement techniques, transdiagnostic individual cognitive behavioral therapy techniques, and family psychoeducation and safety planning. METHODS This quasi-experimental study will proceed in 2 stages. The pilot stage will use rapid-cycle prototyping methods in collaboration with end-user stakeholders to draft protocol delivery and fidelity guidelines adapted from existing resources, solicit provider and client input on protocol content and delivery via cognitive interviewing, and pilot prototype components on 4 to 6 cases. The second stage will be an interrupted time series study for 60 comorbid SUD+ID cases across 2 sites serving diverse adolescents: 30 will receive treatment as usual (TAU); following clinician training in the protocol, 30 new cases will receive TAU enhanced by Fam-AID. For aim 1, the focus is on evaluating the acceptability of the Fam-AID protocol through therapist and client interviews as well as assessing fidelity benchmarks using therapist- and observer-reported protocol fidelity data. For aim 2, the plan is to compare the effects of TAU only cases versus TAU+Fam-AID cases on family treatment attendance and on adolescent ID and substance use symptoms, with measurements taken at baseline and at 3-month and 6-month follow-ups. RESULTS Study recruitment will begin in April 2025. CONCLUSIONS We anticipate that Fam-AID will contain 5 treatment modules that can be delivered in any sequence to meet client needs: family engagement of primary supports in treatment planning and services; relational reframing of family constraints, resiliencies, and social capital connected to the adolescent’s ID symptoms; functional analysis of the adolescent’s ID symptoms and related behaviors; cognitive behavioral therapy to address the adolescent’s ID symptoms and functional needs, featuring 3 core techniques (emotion acceptance, emotional exposure, and behavioral activation) to address negative affect and emotional dysregulation; and family psychoeducation and safety planning focused on education about comorbid SUD+ID and prevention of adolescent self-harm. If the abovementioned modules are found to be feasible and effective, Fam-AID will offer a set of pragmatic interventions to SUD clinicians for treating cooccurring IDs in adolescent clients. CLINICALTRIAL ClinicalTrials.gov NCT06413979; https://www.clinicaltrials.gov/study/NCT06413979 INTERNATIONAL REGISTERED REPORT PRR1-10.2196/64332

  • Open Access

    Emotional arousal and reflective functioning among parents participating in attachment-based family therapy for LGBTQ+ young adults and their nonaccepting parents

    by Yotam Strifler, Gary M. Diamond

    Parents' rejection of their LGBTQ + young adults can have a negative impact on their young adult's psychological welfare, and on the young adult-parent relationship. Parents' ability to reflect on their child's pain and unmet needs is thought to evoke empathy and compassion, and reduce rejection. Empirical and clinical evidence suggest that parents' level of reflective functioning (RF) is impacted by their level of emotional arousal (EA). This study examined the association between parents' EA and RF within the context of attachment-based family therapy for nonaccepting parents and their LGBTQ+ young adults. 43 therapy sessions drawn from six different cases were coded for parental RF and EA, based on 30-second segments. This generated a total of 343 observations for analyses. Hierarchal linear modeling revealed that parents' level of RF was a function of their concomitant EA, with moderate levels of arousal predicting the highest RF levels. Moderate EA may facilitate optimal parental reflective functioning. With nonaccepting parents, who typically present for treatment with high levels of maladaptive fear and shame, therapists would do well to assess their level of arousal and, when indicated, employ downregulating interventions before inviting them to reflect on their young adult's experience and needs.


  • Open Access

    Attachment‐based family therapy for sexual and gender minority young adults and their nonaccepting parents

    by Gary M. Diamond, Rotem Boruchovitz‐Zamir, Ofir Nir‐Gotlieb, Inbal Gat, Eran Bar‐Kalifa, Priel‐Yehoshua Fitoussi, Shira Katz

    This pilot open trial examined the efficacy of attachment‐based family therapy (ABFT) for Israeli sexual and gender minority (SGM) young adults and their persistently nonaccepting parents. Thirty families received up to 26 weeks of treatment, with parental rejection, parental acceptance, and young adults' attachment avoidance and attachment anxiety assessed at baseline, 8, 16, 24, and 36 weeks (three months post‐treatment). Analyses using multilevel growth models revealed that both young adults and their mothers independently reported increases in mothers’ acceptance of their young adult's same‐sex orientation or noncisgender identity. In addition, young adults reported decreases in both parents’ levels of rejection. Also, mothers, but not fathers, reported decreases in their own level of rejection. Finally, young adults reported a decrease in attachment avoidance in their relationships with both mothers and fathers, but not a decrease in attachment anxiety. Importantly, these treatment gains were maintained three months after the end of treatment. Together, these results suggest that ABFT‐SGM, a manualized, affirmative, experiential, family‐based treatment, may be effective in reducing long‐standing parental rejection, promoting parental acceptance, and improving the quality of LGBTQ+ young adults’ relationships with their parents. These findings are encouraging in light of the urgent need for efficacious interventions to reduce family generated minority stress and promote safer, more supportive environments for sexual and gender minority people.


  • Parents' reflective functioning and their agreement on treatment goals in attachment‐based family therapy for sexual and gender minority young adults and their nonaccepting parents

    by Yotam Strifler, Tamar Zisenwine, Gary M. Diamond

    This study examined the trajectories of parents' reflective functioning over the course of individual preparatory sessions with the therapist in attachment‐based family therapy (ABFT) for Israeli sexual minority young adults and their nonaccepting parents, and whether such reflective functioning was associated with parents' agreement on the goals for subsequent conjoint corrective attachment sessions. Three parents with good agreement on treatment goals were compared to three parents with poor agreement on treatment goals. Parents' in‐session reflectivity regarding their child's experience of nonacceptance, and regarding the quality of their relationship with their child, was observationally measured at the session level. Reflective functioning increased over time among those parents who reported good agreement with the treatment goals. There were no changes in parents' reflective functioning in the poor agreement group. Findings suggest the potential importance of facilitating parents' reflective functioning in ABFT, before conducting conjoint corrective attachment sessions. Research and clinical implications are discussed.


  • Corrective attachment episodes in attachment-based family therapy: the power of enactment

    by Noa Tsvieli, Chen Lifshitz, Gary M. Diamond

    Corrective attachment episodes, therapeutic enactments designed to increase openness and trust between young adults and their parents, are the purported primary change mechanism in attachment-based family therapy. This study examined whether sequences of therapist interventions, young adults’ productive emotional processing, and parental behaviors thought to reflect corrective attachment episodes were characteristic of good versus poor outcome cases. Thirty conjoint attachment sessions were analyzed using the THEME algorithm. Results revealed that only in good outcome cases were there four-step sequences hypothesized to facilitate attachment. One sequence began with the therapist focusing on the young adult’s primary adaptive emotions, followed by the young adult’s productive emotional processing of their vulnerable emotions, followed by the therapist empathizing with and validating the parent, followed by parents’ expressions of warmth toward their young adult. The second sequence began with the therapist focusing on the young adult’s unmet attachment needs, followed by the young adult productively processing their vulnerable emotions, followed by the parent expressing a willingness to fulfill their young adult’s attachment needs, followed by parents’ expressions of warmth toward their young adult. Findings provide an empirically-based clinical map for conducting therapeutic enactments in family therapy and have implications for treatment development, therapist training and supervision.