Full Text Journal Articles by
Author Michael P Twohig

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Examining the feasibility and effectiveness of online acceptance and commitment therapy self-help in a quasi-stepped care model: A pilot study.

Clarissa W Ong, Carina L Terry, Michael E Levin, Michael P Twohig,

The global burden of mental illness and limited resources make increasing the efficiency of available mental healthcare resources especially crucial. One way this can be done is a stepped care approach to treatment. To test the viability of using internet-based self-help in a stepped care model, we examined the feasibility, ... Read more >>

Psychol Serv (Psychological services)
[2021, :]

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An Examination of the Relationship Between Perfectionism and Neurological Functioning.

Julie Petersen, Clarissa W Ong, Allison S Hancock, Ronald B Gillam, Michael E Levin, Michael P Twohig,

Clinical perfectionism is the rigid pursuit of high standards, interfering with functioning. Little research has explored neural patterns in clinical perfectionism. The present study explores neural correlates of clinical perfectionism, before and after receiving ten 50-minute, weekly sessions of acceptance and commitment therapy (ACT), as compared to low-perfectionist controls, in ... Read more >>

J Cogn Psychother (Journal of cognitive psychotherapy)
[2021, 35(3):195-211]

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Confirmatory factor analysis and measurement invariance of the Cognitive Fusion Questionnaire-Body Image in a clinical eating disorder sample.

Jennifer L Barney, Tyson S Barrett, Tera Lensegrav-Benson, Benita Quakenbush, Michael P Twohig,

Individuals with eating disorders (EDs) may be particularly susceptible to body image related cognitive fusion (i.e., excessive entanglement with one's body image related thoughts such that they unduly influence on behavior). The Cognitive Fusion Questionnaire-Body Image (CFQ-BI) is the only existing measure of this construct, yet its psychometric properties have ... Read more >>

Body Image (Body image)
[2021, 38:262-269]

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Is perfectionism always unhealthy? Examining the moderating effects of psychological flexibility and self-compassion.

Clarissa W Ong, Eric B Lee, Julie M Petersen, Michael E Levin, Michael P Twohig,

<h4>Objective</h4>Perfectionism is generally associated with worse mental health outcomes, though evidence suggests elements of it may be helpful. In light of these findings, we examined whether psychological skills like psychological flexibility and self-compassion moderated the relationship between perfectionism and wellbeing (i.e., quality of life, symptom impairment, and psychological distress).<h4>Methods</h4>Undergraduate students ... Read more >>

J Clin Psychol (Journal of clinical psychology)
[2021, 77(11):2576-2591]

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A systematic review and psychometric evaluation of self-report measures for hoarding disorder.

Clarissa W Ong, Jennifer Krafft, Michael E Levin, Michael P Twohig,

<h4>Background</h4>Hoarding disorder (HD) affects approximately 2.5% of the general population, leads to significant distress and impairment, and is notoriously difficult to treat. The crux of developing effective treatments for HD is our ability to reliably and validly measure relevant constructs in HD to better understand its presentation and, subsequently, formulate ... Read more >>

J Affect Disord (Journal of affective disorders)
[2021, 290:136-148]

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eHealth parent education for hearing aid management: a pilot randomized controlled trial.

Karen Muñoz, Guadalupe G San Miguel, Tyson S Barrett, Courtney Kasin, Kelsey Baughman, Bailey Reynolds, Caitlyn Ritter, Makynzie Larsen, John J Whicker, Michael P Twohig,

<h4>Objective</h4>Parents frequently experience challenges implementing daily routines important for consistent hearing aid management. Education that supports parents in learning new information and gaining confidence is essential for intervention success. We conducted a pilot study to test an eHealth program to determine if we could implement the program with adherence and ... Read more >>

Int J Audiol (International journal of audiology)
[2021, 60(sup1):S42-S48]

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A Preliminary Examination of Acceptance and Commitment Therapy Versus Exposure and Response Prevention for Patients with Obsessive-Compulsive Disorder on an Optimal Dose of SSRIs: A Randomized Controlled Trial in Iran.

Mehdi Zemestani, Mojgan Salavati, Asrin Seyedolshohadayi, Julie M Petersen, Clarissa W Ong, Michael P Twohig, Ebrahim Ghaderi,

This study compared the effects of adding acceptance and commitment therapy (ACT) or exposure and response prevention (ERP) to adults diagnosed with obsessive compulsive disorder (OCD) already on an optimal and stable dose of selective serotonin reuptake inhibitors (SSRIs). Forty adults on SSRIs who were diagnosed with OCD participated in ... Read more >>

Behav Modif (Behavior modification)
[2020, :145445520982977]

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Evaluating the effects of guided coaching calls on engagement and outcomes for online acceptance and commitment therapy.

Michael E Levin, Jennifer Krafft, Carter H Davis, Michael P Twohig,

Previous research indicates mixed results for guided support with online interventions. The current secondary analysis evaluated the effects of phone coaching from a dismantling trial of online acceptance and commitment therapy (ACT) in a sample of 136 distressed college students randomized to one of three versions of an ACT website. ... Read more >>

Cogn Behav Ther (Cognitive behaviour therapy)
[2021, 50(5):395-408]

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Psychosocial Well-Being of Adults Who Are Deaf or Hard of Hearing.

Karen Muñoz, Kelsey Baughman, Alex Meibos, Clarissa W Ong, Michael P Twohig,

<h4>Background</h4>Psychosocial well-being can interfere with engagement in activities of daily life. Consideration of psychosocial domains within hearing health care can expand audiologists' ability to understand treatment barriers and provide an opportunity to jointly address challenges.<h4>Purpose</h4>This study explored psychosocial well-being and predictors among adults who are deaf or hard of hearing ... Read more >>

J Am Acad Audiol (Journal of the American Academy of Audiology)
[2021, 32(2):83-89]

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Preliminary evidence of the effectiveness of acceptance and commitment therapy for death anxiety in Iranian clients diagnosed with obsessive-compulsive disorder.

Mohammad Hassan Davazdahemami, Abolfazl Bayrami, Julie M Petersen, Michael P Twohig, Maryam Bakhtiyari, Mohammad Noori, Ali Kheradmand,

The authors investigated the effectiveness of acceptance and commitment therapy (ACT) for the treatment of death anxiety and obsessive-compulsive disorder (OCD) with eight adult women in Iran. The ACT protocol was conducted in weekly solo sessions with each participant for 8 weeks (45 minutes each). The results were analyzed by ... Read more >>

Bull Menninger Clin (Bulletin of the Menninger Clinic)
[2020, 84(Supplement A):1-11]

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The Relationship Between Psychological Processes and Indices of Well-Being Among Adults With Hearing Loss.

John J Whicker, Clarissa W Ong, Karen Muñoz, Michael P Twohig,

Purpose The purpose of this study was to explore the role of psychological processes (i.e., internalized shame, self-efficacy, psychological inflexibility) regarding hearing loss in the well-being of adults who have hearing loss. Method This study used a cross-sectional survey design. Two hundred sixty-four surveys were submitted for analysis. Data were ... Read more >>

Am J Audiol (American journal of audiology)
[2020, 29(4):728-737]

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Hearing care and management priority among parents of children with Down syndrome: a grounded theory.

John J Whicker, Karen Muñoz, Nicole J Pearson, Trenton J Landon, Lauri H Nelson, Karl R White, Michael P Twohig,

<h4>Objective</h4>This study qualitatively explored the factors that influence how parents of children who are Deaf or hard-of-hearing with Down syndrome prioritise hearing care and management and developed an associated theory to explain that priority.<h4>Design</h4>Grounded theory was used for the purposes of this qualitative study. Data were collected using in-depth interviews ... Read more >>

Int J Audiol (International journal of audiology)
[2021, 60(8):629-640]

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Comparing the Efficacy of Defusion, Self-as-Context, and Distraction Strategies for Getting Rid of Possessions.

Clarissa W Ong, Carina L Terry, Michael P Twohig,

Interventions for hoarding disorder need to target difficulty letting go of items to reduce clutter and improve functioning. The present studies were designed to test the efficacy of brief cognitive interventions for letting go of possessions and self-report outcomes. Participants (<i>N</i> = 67 in Study 1; <i>N</i> = 110 in ... Read more >>

J Cogn Psychother (Journal of cognitive psychotherapy)
[2020, 34(3):242-260]

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Psychological Flexibility as Shared Process of Change in Acceptance and Commitment Therapy and Exposure and Response Prevention for Obsessive-Compulsive Disorder: A Single Case Design Study.

Brian L Thompson, Michael P Twohig, Jason B Luoma,

Changes in psychological flexibility were tracked in a combined protocol of exposure and response prevention (ERP) and acceptance and commitment therapy (ACT) for adults with OCD to assess if changes in psychological flexibility processes were unique to ACT intervention (e.g., not impacted by ERP). Using a nonconcurrent multiple baseline design, ... Read more >>

Behav Ther (Behavior therapy)
[2021, 52(2):286-297]

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Obsessive compulsive disorder and thought action fusion: Relationships with eating disorder outcomes.

Eric B Lee, Jennifer L Barney, Michael P Twohig, Tera Lensegrav-Benson, Benita Quakenbush,

Obsessive Compulsive Disorder (OCD) is among the most common psychiatric comorbidities with eating disorders (EDs) and most studies have only examined this relationship at a diagnostic level. More research is needed to determine whether specific symptom domains and cognitive patterns commonly observed in OCD are most salient among individuals with ... Read more >>

Eat Behav (Eating behaviors)
[2020, 37:101386]

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Adherence to exposure and response prevention as a predictor of improvement in obsessive-compulsive symptom dimensions.

Heidi J Ojalehto, Jonathan S Abramowitz, Samantha N Hellberg, Jennifer L Buchholz, Michael P Twohig,

Exposure and response prevention (ERP) is an effective treatment for obsessive compulsive disorder (OCD); yet, improvement rates vary and it is therefore important to examine potential predictors of outcome. The present study examined adherence with ERP homework as a predictor of (a) treatment response across OCD symptom dimensions and (b) ... Read more >>

J Anxiety Disord (Journal of anxiety disorders)
[2020, 72:102210]

Cited: 2 times

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An Ecological Momentary Assessment Study Investigating the Function of Hoarding.

Jennifer Krafft, Clarissa W Ong, Rick A Cruz, Michael P Twohig, Michael E Levin,

This study examined the function of hoarding behaviors and the relations between hoarding and a series of cognitive and affective processes in the moment using ecological momentary assessment. A matched-groups design was used to compare college students with higher hoarding symptoms (n = 31) and matched controls (n = 29). The two groups did ... Read more >>

Behav Ther (Behavior therapy)
[2020, 51(5):715-727]

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A randomized dismantling trial of the open and engaged components of acceptance and commitment therapy in an online intervention for distressed college students.

Michael E Levin, Jennifer Krafft, Elizabeth T Hicks, Benjamin Pierce, Michael P Twohig,

This dismantling trial compared the effects of a full online Acceptance and Commitment Therapy (ACT) intervention to the isolated effects of the Open (i.e., acceptance, cognitive defusion) and Engaged (i.e., values, committed action) components of ACT. A sample of 181 distressed college students were randomized to one of four conditions: ... Read more >>

Behav Res Ther (Behaviour research and therapy)
[2020, 126:103557]

Cited: 1 time

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Evaluating the Open and Engaged Components of Acceptance and Commitment Therapy in an Online Self-Guided Website: Results from a Pilot Trial.

Julie M Petersen, Jennifer Krafft, Michael P Twohig, Michael E Levin,

Online acceptance and commitment therapy (ACT) is promising for treating a range of psychological problems. Component research can further clarify which components are needed for optimal outcomes in what contexts. Online platforms provide a highly controlled format for such research. In this pilot trial, 55 adults were randomized to: ACT-Open ... Read more >>

Behav Modif (Behavior modification)
[2021, 45(3):480-501]

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Not just thinking, but believing: Obsessive beliefs and domains of cognitive fusion in the prediction of OCD symptom dimensions.

Samantha N Hellberg, Jennifer L Buchholz, Michael P Twohig, Jonathan S Abramowitz,

Cognitive fusion (CF) involves the tendency to "buy in" to thoughts and feelings and consists of three empirically established domains: somatic concerns, emotion regulation, and negative evaluation. CF is hypothesized to play a role in obsessive-compulsive disorder (OCD). The present study examined how well the CF domains, relative to traditional ... Read more >>

Clin Psychol Psychother (Clinical psychology & psychotherapy)
[2020, 27(1):69-78]

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Acceptance-enhanced behavior therapy for trichotillomania: Randomized controlled trial rationale, method, and strategies for recruiting minority participants.

Angela Neal-Barnett, Douglas W Woods, Flint M Espil, Martale Davis, Jennifer R Alexander, Scott N Compton, Michael R Walther, Michael P Twohig, Stephen M Saunders, Shawn P Cahill, Martin E Franklin,

Trichotillomania (TTM) involves the chronic pulling out of hair to the point of hair loss or thinning, which continues despite repeated attempts to stop. Behavior therapy is a promising treatment for the condition, but studies have been limited by the lack of a credible control condition, small sample sizes, follow-up ... Read more >>

Bull Menninger Clin (Bulletin of the Menninger Clinic)
[2019, 83(4):399-431]

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Measuring psychological inflexibility in adult and child hearing loss.

Clarissa W Ong, John J Whicker, Karen Muñoz, Michael P Twohig,

Objective: Hearing loss is a chronic condition that impacts functioning among individuals with hearing loss and caregivers of children with hearing loss. Even though treatments for hearing loss can alleviate functional impairment, psychological factors like psychological inflexibility may interfere with treatment engagement and adherence, undermining the benefits of treatment. Measuring ... Read more >>

Int J Audiol (International journal of audiology)
[2019, 58(10):643-650]

Cited: 1 time

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Starting off on the right foot in acceptance and commitment therapy.

Michael P Twohig, Clarissa W Ong, Jennifer Krafft, Jennifer L Barney, Michael E Levin,

This article describes the initial phase of acceptance and commitment therapy (ACT). The article begins with a review of ACT's theoretical orientation. Basic empirical support for ACT and its model are covered. A case description follows that highlights the initial phases of ACT. The article concludes with practical recommendations for ... Read more >>

Psychotherapy (Chic) (Psychotherapy (Chicago, Ill.))
[2019, 56(1):16-20]

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Considerations from Psychology on Implementing Motivational Interviewing in Audiology: Response to Solheim et al (2018) "An Evaluation of Motivational Interviewing for Increasing Hearing Aid Use: A Pilot Study".

John J Whicker, Clarissa Ong, Karen Muñoz, Michael P Twohig,

J Am Acad Audiol (Journal of the American Academy of Audiology)
[2019, 30(5):444-445]

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Obsessive-Compulsive Symptoms Are Associated With Increased Delay Discounting in a Novel Hand-Washing Task.

Clarissa W Ong, Kevin Graves, Meredith S Berry, Amy L Odum, Michael P Twohig,

Delay discounting is a theoretical framework for assessing impulsivity characterized by a tendency to choose SSRs over LLRs. Despite the potential therapeutic value of targeting impulsive choice in the context of obsessive-compulsive (OC) symptoms, little research has been done to examine the link between the 2. In the present study, ... Read more >>

Behav Anal (Wash D C) (Behavior analysis (Washington, D.C.))
[2019, 19(2):136-149]

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