Treatment Of Worry Research Articles

Worry Intervention in an Older Adult With a Persecutory Delusion: A Single Case Experimental Design.

This report presents the single case of Jack, a 67-year-old referred to our Older Adult Community Mental Health Team (OA CMHT) for his distressing persecutory delusion and high levels of worry. Jack also reported learning difficulties and autistic traits, although neither were formally diagnosed. Ten sessions of worry intervention taken from The Feeling Safe Programme worry module were used to reduce Jack's time spent worrying and increase his engagement in meaningful activity. Weekly face-to-face sessions were held, with Jack's brother acting as a co-therapist. Adaptations to the intervention were made based on Jack's learning preferences. An AB single case experimental design was adopted to compare Jack's scores on measures of worry, paranoia and delusional conviction, and wellbeing and daily functioning before and after intervention. Results demonstrate the worry intervention improved Jack's scores on all measures to a clinically significant degree. This is the first known report of applying the worry intervention to an older adult. The results show the intervention can be of considerable benefit in terms of reducing worry and paranoia, in the context of both older age and suspected neurodiversity.

Treatment of worry and comorbid symptoms within depression, anxiety, and insomnia with a group-based rumination-focused cognitive-behaviour therapy in a primary health care setting: a randomised controlled trial.

Repetitive negative thinking (RNT) has been described as a maintaining transdiagnostic factor for psychopathology within the areas of depression, anxiety and insomnia. We investigated the effects of rumination-focused cognitive-behaviour therapy (RF-CBT) in a group format at a primary health care centre on symptoms of depression, anxiety, insomnia, RNT, and quality of life. The participants presented clinical symptom levels of worry and at least two disorders among anxiety disorders, major depressive disorder, and insomnia disorder. A randomised controlled superiority parallel arm trial was used. 73 participants were included and randomised in pairs to either group-administered RF-CBT or a waiting list condition. The primary outcomes were self-rated worry and transdiagnostic symptoms (depression, anxiety, and insomnia). Intention-to-treat analyses of group differences were conducted using linear mixed models. Adverse side effects and incidents were presented descriptively. Group RF-CBT significantly reduced self-reported insomnia at post-treatment and self-reported insomnia and depression at the 2 month-follow-up, relative to the wait-list control group. There was no significant difference in change in RNT, anxiety, or quality of life. The current study suggests that group-administered RF-CBT may be effective for insomnia and potentially effective for depression symptomatology. However, the study was underpowered to detect small and moderate effects and the results should therefore be interpreted with caution.

Therapist-guided online metacognitive intervention for excessive worry: a randomized controlled trial with mediation analysis

ABSTRACT Previous studies have found an association between excessive worrying and negative beliefs about worry. It is unclear if change in these beliefs mediate worry reduction. This study aimed to examine (1) if a simplified online metacognitive intervention can reduce worry, (2) whether changes in negative beliefs about worry mediate changes in worry severity, and (3) moderated mediation, i.e., if the mediating effect is more pronounced in individuals with a high degree of negative beliefs about worry at baseline. Adult excessive worriers (N = 108) were randomized to 10-weeks of the online metacognitive intervention (MCI) aimed at reducing negative beliefs about worry, or to wait-list (WL). Outcomes, mediation, and moderated mediation were examined via growth curve modelling. Results indicated a significant reduction in the MCI group (d = 1.6). Reductions in negative beliefs about worry and depressive symptoms separately mediated changes in worry severity during the intervention, but in a multivariate test only the former remained significant. Sensitivity analysis indicated that the hypothesized mediation was robust to possible violations of mediator-outcome confounding. The moderated mediation hypothesis was not supported. The results from this randomized trial add to the growing literature suggesting that negative beliefs about worry play a key role in worry-related problems. ClinicalTrials.gov Identifier: NCT03393156

A Clinical Experience Informed Variation to the CBT Explanation and Treatment of Worry

A Clinical Experience Informed Variation to the CBT Explanation and Treatment of Worry

Experiences of online exposure-based treatment with parental support for teenagers with excessive worry

Abstract Worry is a common symptom that can become excessive and is related to several negative health outcomes. Our research group recently developed an online treatment for teenagers with excessive worry with a parallel programme for their parents. The treatment is characterized by a specific focus on exposure to uncertainty and other avoided stimuli, and includes a substantial amount of parental involvement. The aim of this study was to explore how teenagers and their parents experienced the treatment, especially how they perceived working independently with exposure tasks, parental involvement in the treatment programme, and a fixed treatment format. An experienced, independent clinical psychologist interviewed eight teenagers and nine parents in total. The verbatim transcripts were analysed with thematic analysis and two main themes emerged: ‘Seeing the worry in a new light’ and ‘Changing within a set format’, which both consisted of three subthemes. Based on the analysis, we concluded that teenagers can work actively with exposure and experience it as helpful even though it can be difficult and strange at first, and that parental involvement can be perceived as beneficial by both teenagers and their parents. While the online format placed a substantial responsibility on the families, and some would have wanted additional therapist support, working independently with one’s difficulties was acceptable. Key learning aims (1) To learn about experienced benefits and obstacles of exposure in the treatment of worry. (2) To learn about teenagers’ experiences of working independently with exposure. (3) To consider the impact of parental involvement in psychological treatments for teenagers. (4) To consider pros and cons of online treatment for teenagers and their parents. (5) To consider the use of qualitative research approaches to inform further development of psychological treatments for teenagers with excessive worry.

Pilot study of a group worry intervention for recent onset psychosis

Abstract Worry is common among individuals with psychosis and has been found to be a causal factor in the development of paranoia. Previous research has shown that a cognitive behavioural therapy protocol targeting worry helps to reduce persecutory delusions and associated distress in a population experiencing longstanding psychotic symptoms. However, there has yet to be a published adaptation of the protocol for individuals experiencing a recent onset of psychosis. The current study aims to examine the feasibility of adapting the worry intervention for recent onset psychosis in a group setting. Six young adults with a recent onset of psychosis, aged 18–32 years, participated in a pilot study of an 8-week group intervention covering cognitive behavioural strategies for managing worry, including worry periods, worry postponement techniques, mindfulness and relaxation, and problem solving. Pre- and post-intervention data were collected on worry, anxiety, depressive symptoms, psychotic symptoms, and perceived recovery from psychosis. In addition, qualitative feedback from group members was gathered during a post-intervention focus group. Feasibility of the group appeared promising, despite high participant attrition. All components of the intervention were successfully implemented, and group members provided positive feedback regarding acceptability of the group. Contrary to prediction, there was not a consistent decrease in worry from pre- to post-intervention. Findings from secondary symptom measures were mixed and may have been related to participants’ subjective experience of the group. Specifically, participants who experienced high levels of group cohesion seemed to benefit more from the intervention. Key learning aims (1) To gain awareness of the gaps in treatment for early psychosis. (2) To understand the role of worry in psychosis. (3) To learn about the feasibility of implementing a group worry intervention for recent onset psychosis. (4) To consider the impact of group cohesion and symptom severity on treatment engagement.

An Online Intervention for Disabling Worry About the COVID-19 Pandemic

Psychological reactions to the COVID-19 pandemic range from outright denial, to realistic concern, to pervasive and disproportionate worry and anxiety.

Brief Online Cognitive Behavioural Intervention for Dysfunctional Worry Related to the COVID-19 Pandemic: A Randomised Controlled Trial

Introduction: Worries about the immediate and long-term consequences of the COVID-19 pandemic may for some individuals develop into pervasive worry that is disproportionate in its intensity or duration and significantly interferes with everyday life. Objective: The aim of this study was to investigate if a brief self-guided, online psychological intervention can reduce the degree of dysfunctional worry related to the COVID-19 pandemic and associated symptoms. Methods: 670 adults from the Swedish general population reporting daily uncontrollable worry about CO­VID-19 and its possible consequences (e.g., illness, death, the economy, one’s family) were randomised (1:1 ratio) to a 3-week self-guided, online cognitive behavioural intervention targeting dysfunctional COVID-19 worry and associated symptoms, or a waiting list of equal duration. The primary outcome measure was a COVID-19 adapted version of the Generalised Anxiety Disorder 7-item scale administered at baseline and weeks 1–3 (primary endpoint). Follow-up assessments were conducted 1 month after treatment completion. The trial was registered on ClinicalTrials.gov (NCT04341922) before inclusion of the first participant. Results: The main pre-specified intention-to-treat analysis indicated significant reductions in COVID-19-related worry for the intervention group compared to the waiting list (β = 1.14, Z = 9.27, p < 0.001), corresponding to a medium effect size (bootstrapped d = 0.74 [95% CI: 0.58–0.90]). Improvements were also seen on all secondary measures, including mood, daily functioning, insomnia, and intolerance of uncertainty. Participant satisfaction was high. No serious adverse events were recorded. Conclusions: A brief digital and easily scalable self-guided psychological intervention can significantly reduce dysfunctional worry and associated behavioural symptoms related to the COVID-19 pandemic.

Online cognitive behavior therapy for adolescents with excessive worry: a multiple baseline design feasibility study.

One in twenty adolescents experience excessive worry and evidence-based psychological therapies are not sufficiently widespread to reach most of those affected. In this multiple baseline evaluation, we assess the feasibility and preliminary efficacy of a scalable, online cognitive-behavioral intervention for adolescents with excessive worry (BIP worry). Thirteen adolescents (age 13-17) with excessive worry underwent the 10-week online BIP worry intervention. The treatment also included an online intervention for parents. Completion rates, treatment satisfaction, and adverse events were measures of feasibility. Clinical outcomes included worry severity, symptoms of other anxiety and depression, and general functioning. To control for time and spontaneous fluctuations in symptoms, adolescents were randomized to a 2-, 6-, or 10-week baseline phase prior to treatment. A short measure of worry severity was administered weekly during the baseline and treatment phases. Outcomes were assessed before the baseline-phase, at pre-treatment, post-treatment, and at 1- and 3-month follow-ups. Twelve of 13 included adolescents, together with their parents, participated in BIP worry, with a mean completion rate of 9.8 of the 10 treatment modules. Adolescents reported an average of 4.4 exposures per week as homework during treatment. High levels of treatment adherence, credibility, and satisfaction, and no serious adverse events were reported. Therapists averaged 21 min per week communicating with each family. Linear mixed effects models indicated significant improvements in worry, anxiety, and general functioning from pre- to post-treatment, with these gains maintained at 1- and 3-months follow-up. Reductions in worry severity during treatment were significantly larger than during the baseline phase. The results from the multiple baseline evaluation suggested an association between the introduction of the BIP worry intervention and subsequent symptom change for some but not all adolescents. BIP worry is a feasible and potentially effective treatment. As the treatment is scalable and involves limited therapist contact, it represents a low-cost method for treating adolescents with excessive worry and anxiety. Further investigation under randomized controlled trial (RCT) conditions is warranted.

Application of a worry reduction intervention in a medically unexplained symptoms-analogue student-sample

Objective: Worry is an important perpetuating factor of Medically Unexplained Symptoms (MUS). Former research has shown that a worry postponement instruction is effective in reducing Subjective Health Complaints (SHC) in non-clinical samples. This study aimed to (1) replicate these findings in a MUS-analogue student-sample and (2) assess alexithymia as a moderator.Design: The current study had an experimental design with two waves of data collection: pre- and post-intervention.Main outcome measures: A MUS-analogue student-sample consisting of 114 undergraduate students with high self-reported health worry and a minimum of two doctor visits in the previous year with no current diagnosis for a (chronic or acute) disease were instructed to register their worry frequency and duration eight times per day via an experience sampling-application on their smartphones. The intervention group additionally postponed their worries to a 30-minute period in the evening. SHC were assessed pre- and post-intervention.Results: The intervention did not have an effect on worry or SHC. Alexithymia did not moderate this effect (p’s > .05).Conclusion: Our study did not find evidence for the effectiveness of the worry reduction intervention on SHC in a MUS-analogue student-sample. This finding contributes to several previous studies that have found mixed evidence for the effectiveness of the worry reduction intervention on SHC and suggests that the worry intervention may not be effective in all cases.

Impact of a brief worry-based cognitive therapy group in psychosis: a study of feasibility and acceptability

AbstractPrevious research suggests that CBT focusing on worry in those with persecutory delusions reduces paranoia, severity of delusions and associated distress. This preliminary case series aimed to see whether it is feasible and acceptable to deliver worry-focused CBT in a group setting to those with psychosis. A secondary aim was to examine possible clinical changes. Two groups totalling 11 participants were run for seven sessions using the Worry Intervention Trial manual. Qualitative and quantitative data about the experience of being in the group was also collected via questionnaires, as was data on number of sessions attended. Measures were delivered pre- and post-group and at 3-month follow-up. These included a worry scale, a measure of delusional belief and associated distress and quality of life measures. Of the 11 participants who started the group, nine completed the group. Qualitative and quantitative feedback indicated that most of the participants found it acceptable and helpful, and that discussing these issues in a group setting was not only tolerable but often beneficial. Reliable Change Index indicated that 6/7 of the group members showed reliable reductions in their levels of worry post-group and 5/7 at follow-up. There were positive changes on other measures, which appeared to be more pronounced at follow-up. Delivering a worry intervention in a group format appears to be acceptable and feasible. Further research with a larger sample and control group is indicated to test the clinical effectiveness of this intervention.Key learning aims(1)To understand the role of worry in psychosis.(2)To learn about the possible feasibility of working on worry in a group setting.(3)To be aware of potential clinical changes from the group.(4)To consider acceptability for participants of working on worries in a group setting.

Group-Based Worry Intervention for Persecutory Delusions: an Initial Feasibility Study.

A one-to-one cognitive behavioural therapy intervention targeting worry significantly reduces both worry and persecutory delusions (Freeman et al., 2015). To adapt this intervention for group delivery and conduct a feasibility trial within routine clinical practice. Thirteen participants were randomized to a weekly 8-session worry intervention group (n = 7) or wait-list control (n = 6). All but one participant completed measures at all time points. Participants attended an average of six therapy sessions. Recruitment, retention and therapy uptake were feasible. Observed treatment effects were in the expected direction, but may be diluted compared with one-to-one interventions.

Calmer Life: A Hybrid Effectiveness-implementation Trial for Late-life Anxiety Conducted in Low-income, Mental Health-Underserved Communities.

Anxiety is common among older adults and is associated with multiple negative outcomes. Late-life anxiety is usually unrecognized by providers and undertreated, although evidence supports the effectiveness of psychosocial treatment. Access to mental health care is especially poor among African American seniors. New treatment models are needed to expand the reach of mental health care to minority elders. Our article outlines a study designed to test the effectiveness and implementation potential of Calmer Life (CL), a community-based, person-centered, flexible and culturally tailored intervention for late-life anxiety and worry, offered in low-income, mental health-underserved and predominantly African American communities. CL is skills-based, but also includes resource counseling and an option to integrate religion/spirituality. The study population includes individuals 50 years of age and older who are experiencing high levels of worry. The program was developed in the context of a community-academic partnership with organizations that provide services for seniors in underserved communities, and it trains nontraditional community providers to deliver the intervention. Study progress to date, challenges, and lessons learned are discussed. Data collection is ongoing, and study findings will be available in late 2017. CL will offer valuable information to help expand the reach of anxiety treatment among minority seniors living in underserved neighborhoods.

Internet-Based Extinction Therapy for Worry: A Randomized Controlled Trial

Worry is a common phenotype in both psychiatric patients and the normal population. Worry can be seen as a covert behavior with primary function to avoid aversive emotional experiences. Our research group has developed a treatment protocol based on an operant model of worry, where we use exposure-based strategies to extinguish the catastrophic worry thoughts. The aim of this study was to test this treatment delivered via the Internet in a large-scale randomized controlled trial. We randomized 140 high-worriers (defined as > 56 on the Penn State Worry Questionnaire [PSWQ]) to either Internet-based extinction therapy (IbET) or to a waiting-list condition (WL). Results showed that IbET was superior to WL with an overall large between-group effect size of d = 1.39 (95% confidence interval [1.04,1.73]) on the PSWQ. In the IbET group, 58% were classified as responders. The corresponding figure for WL participants was 7%. IbET was also superior to the WL on secondary outcome measures of anxiety, depression, meta-cognitions, cognitive avoidance, and quality of life. Overall treatment results were maintained for the IbET group at 4- and 12-month follow-up. The results from this trial are encouraging as they indicate that worry can be targeted with an accessible and novel intervention for worry. Replication trials with active control group are needed.

Brief and effective psychological treatment of worry within people diagnosed with persecutory delusions

ABSTRACT FROM: Freeman D, Dunn G, Startup H, et al . Effects of cognitive behaviour therapy for worry on persecutory delusions in patients with psychosis (WIT): a parallel, single-blind, randomised...

Effects of cognitive behaviour therapy for worry on persecutory delusions in patients with psychosis (WIT): a parallel, single-blind, randomised controlled trial with a mediation analysis

SummaryBackgroundWorry might be a contributory causal factor in the occurrence of persecutory delusions in patients with psychotic disorders. Therefore we postulated that reducing worry with cognitive behaviour therapy (CBT) would reduce persecutory delusions.MethodsFor our two-arm, assessor-blinded, randomised controlled trial (Worry Intervention Trial [WIT]), we recruited patients aged 18–65 years with persistent persecutory delusions but non-affective psychosis from two centres: the Oxford Health National Health Service (NHS) Foundation Trust (Oxford, UK) and the Southern Health NHS Foundation Trust (Southampton, UK). The key inclusion criteria for participants were a score of at least 3 on the Psychotic Symptoms Rating Scale (PSYRATS) denoting a current persecutory delusion; that the delusion had persisted for at least 3 months; a clinical diagnosis of schizophrenia, schizoaffective disorder, or delusional disorder; and a clinically significant level of worry. We randomly assigned (1:1) eligible patients, using a randomly permuted block procedure with variable block sizes and division by four strata, to either six sessions of worry-reduction CBT intervention done over 8 weeks added to standard care (the CBT-intervention group), or to standard care alone (the control group). The assessors were masked to patient allocations and did their assessments at week 0 (baseline), 8 weeks (end of treatment), and 24 weeks, follow-up. The primary outcomes were worry measured by the Penn State Worry Questionnaire (PSWQ) and delusions measured by the PSYRATS-delusion scale; we did the analyses in the intention-to-treat population, and also did a planned mediation analysis. This trial is registered with the ISRCTN Registry (number ISRCTN23197625) and is closed to new participants.FindingsFrom Nov 1, 2011, to Sept 9, 2013, we recruited 150 eligible participants and randomly assigned 73 to the CBT intervention group, and 77 to the control group. 143 patients (95%) provided primary outcome follow-up data. Compared with standard care alone, at 8 weeks the CBT intervention significantly reduced worry (mean difference 6·35 [SE 1·56] PSWQ units, 95% CI 3·30–9·40; p<0·001) and persecutory delusions (2·08 [SE 0·73] PSYRATS units, 95% CI 0·64–3·51; p=0·005). The reductions were maintained to 24 weeks follow-up. The mediation analysis suggested that the change in worry accounted for 66% of the change in delusion. No patients died or were admitted to secure units during our study. Six suicide attempts (two in the CBT intervention group, and four in the control group) and two serious violent incidents (one in each group) were noted, but no adverse events were deemed related to the treatments or the assessments.InterpretationTo our knowledge, this is the first large trial focused on persecutory delusions. We have shown that long-standing delusions were significantly reduced by a brief intervention targeted on worry, although the limitations for our study include no determination of the key elements within the intervention. Our results suggest that worry might cause paranoia, and that worry intervention techniques might be a beneficial addition to the standard treatment of psychosis.FundingEfficacy and Mechanism Evaluation programme, which is a UK Medical Research Council and National Institute of Health Research partnership.

An explanatory randomised controlled trial testing the effects of targeting worry in patients with persistent persecutory delusions: the Worry Intervention Trial (WIT)

BackgroundPersecutory delusions are a key experience in psychosis, at the severe end of a paranoia continuum in the population. Treatments require significant improvement. Our approach is to translate recent advances in understanding delusions into efficacious treatment. In our research we have found worry to be an important factor in the occurrence of persecutory delusions. Worry brings implausible ideas to mind, keeps them there and makes the experience distressing. Reducing worry should lead to reductions in persecutory delusions.ObjectiveThe objective was to test the clinical efficacy of a brief cognitive–behavioural intervention for worry for patients with persistent persecutory delusions and determine how the treatment might reduce delusions. Embedded within the trial were theoretical studies to improve the understanding of worry in psychosis.DesignParticipants were randomised either to the psychological intervention added to standard care or to standard care. Assessments, carried out by an assessor blind to allocation, were carried out at 0 weeks, 8 weeks (post treatment) and 24 weeks.SettingPatients were recruited from mental health secondary services: Oxford Health NHS Foundation Trust and Southern Health NHS Foundation Trust.ParticipantsA total of 150 patients with persistent persecutory delusions in the context of non-affective psychosis took part.InterventionThe six-session manualised cognitive–behavioural therapy (CBT) intervention aimed to reduce time worrying and did not dispute the content of delusions.Main outcome measuresThe main outcomes measures were of worry (Penn State Worry Questionnaire; PSWQ) and persecutory delusions (Psychotic Symptom Rating Scales; PSYRATS). Secondary outcome measures were paranoia, overall psychiatric symptoms, psychological well-being, rumination and a patient-chosen outcome.ResultsIn total, 95% of the patients provided primary outcome follow-up data. For the primary outcomes, in an intention-to-treat analysis, when compared with treatment as usual, the therapy led to highly significant reductions in both worry [PSWQ: 6.35, 95% confidence interval (CI) 3.30 to 9.40;p &lt; 0.001] and the persecutory delusions (PSYRATS: 2.08, 95% CI 0.64 to 3.51;p = 0.005). The intervention also led to significant improvements in all of the secondary outcomes. All gains were maintained. A planned mediation analysis indicated that change in worry explained 66% of the change in the delusions. We also found that patients without intervention report a passive relationship with worry, feeling unable to do anything about it; worry brings on depersonalisation experiences; and the patient group has very low levels of psychological well-being.ConclusionsThis was the first large randomised controlled trial specifically focused on the treatment of persecutory delusions. Long-standing delusions were significantly reduced by a brief CBT intervention targeted at worry. The intervention also improved well-being and overall levels of psychiatric problems. An evaluation of the intervention in routine clinical setting is now indicated. We envisage developing the intervention booklets for online and app delivery so that the intervention, with health professional support, has the possibility for greater self-management.Trial registrationCurrent Controlled Trials ISRCTN23197625.FundingThis project was funded by the Efficacy and Mechanism Evaluation (EME) programme, a MRC and NIHR partnership.

Switching to transdiagnostic treatment of worry and rumination following poor early response to CBT-E

We describe the treatment of a patient with BN (plus comorbid major depression and generalised anxiety disorder) who completed stage one and stage two of CBT-E at a specialist eating disorders outpatient clinic. Despite good compliance with all components of the treatment, the patient did not achieve an early rapid reduction in binge-eating and purging by the stage two progress review and was considered to be at-risk of suboptimal treatment outcome. Her repetitive negative thinking (worry and rumination) was identified as significantly interfering with progress, and the primary trigger for episodes of binge-eating and vomiting. In light of this, it was decided to evaluate the usefulness of abandoning CBT-E and switching to metacognitive therapy (MCT) for repetitive negative thinking (RNT). RNT is defined as cognitive perseveration on negative themes. MCT has been shown to demonstrate excellent outcomes in patients with anxiety and depressive disorders at the same clinic. Switching to a transdiagnostic meta-cognitive was associated with achieving optimal outcomes at the end of treatment. It is recommended that clinicians routinely assess the degree to which patients have achieved an early response to CBT-E and systematically evaluate the effectiveness of switching or pursuing CBT-E in this patient group. This abstract was presented in the Treatment in Community and Inpatient Settings stream of the 2014 ANZAED Conference.

An exploration of worry content and catastrophic thinking in middle-aged and older-aged adults with and without Parkinson's disease.

Worry is a common and distressing problem in Parkinson's disease (PD). However, little is known about the nature and content of worry in PD and how it might differ to non-PD populations. The study aimed to explore the content and nature of worry in middle-aged and older-aged adults with and without PD. Four groups of participants, 20 PD patients (10 high worry and 10 low worry) and 19 middle-aged and older-aged adults (10 high worry and nine low worry), completed the catastrophising interview (CI) for three worry topics. Worriers were classified (high/low) on the basis of Penn State Worry Questionnaire scores. Data were analysed using framework analysis. High worriers showed a greater diversity of worry topics than low worriers. Health worries differentiated high and low worriers in the non-PD sample but were common across all PD participants. The CI revealed that the root concern of worry was often different to that initially described. In particular, PD high worriers were more likely to express underlying concerns about negative self-perception and death/severe incapacity. The CI was able to identify the root cause of worry, demonstrating the value of this technique in the exploration and treatment of worry and psychological distress. Exploring worry content may help to distinguish patients with problematic worry, with worries about self-perception and death/severe incapacity characteristic of high worriers. Therapeutic interventions designed to alleviate problematic worry and distress in PD need to take account of the realities of living with PD and the potentially realistic nature of worries that may appear catastrophic in a healthy population.

Fractionating the role of executive control in control over worry: A preliminary investigation

Uncontrollable anxious thought characterizes a number of emotional disorders. Little is known, however, about the cognitive mechanisms that underlie the ability to control these thoughts. The present study investigated the extent to which two well-characterized executive control processes—working memory and inhibition—are engaged when an individual attempts to control worry. Participants completed a concurrent assessment of these processes while attempting to control personally-relevant worried and neutral thoughts. To examine the specificity of these effects to attempts to control worry, versus a residual “depletion” effect of having previously engaged in worry, a subset of participants completed the assessment without instructions to control their worried or neutral thoughts. Attempts to control worry engaged working memory and inhibition to a greater extent than did attempts to control neutral thought. This increased engagement was not explained solely by anxious affect, nor was it significantly associated with trait worry. Engagement did not differ by group, suggesting that executive control depletion by worry cannot be dismissed as an alternative explanation of these findings. These results highlight working memory and inhibition as potentially valuable constructs for deepening our understanding of the nature and treatment of worry and its control.