A First Exploration: Can Eye Movement Desensitization and Reprocessing Improve Cognition in Older Adults With Posttraumatic Stress Disorder?

OBJECTIVES: In older adults, PTSD is associated with decreased verbal learning and executive dysfunction. Therefore, feasibility of EMDR-treatment to improve cognitive performance in older adults with PTSD was examined. Additionally, we investigated pre-treatment correlation with often co-occurring risk factors for cognitive decline (sleep problems, depressive disorder, physical inactivity, childhood traumatic events). DESIGN: Multicenter design with pre-post measurements. SETTING: Psychiatric Dutch hospitals Mondriaan Mental Health Center and Altrecht. PARTICIPANTS: 22 treatment-seeking PTSD-outpatients (60-84 years). INTERVENTION: Weekly one-hour EMDR session during 3, 6, or 9 months. MEASUREMENTS: PTSD was assessed with Clinician-Administered PTSD-scale for DSM-5 (CAPS-5). Verbal learning memory was measured with Auditory Verbal Learning Test (RAVLT), interference with Stroop Colour-Word Test (SCWT) and working memory with Wechsler Adult Intelligence Scale-Digit Span (WAIS-IV-DS). RESULTS: A Linear mixed-model showed significant improvement on RAVLT immediate-recall (F (1, 21) = 15.928, P = .001, 95% CI -6.98-2.20), delayed-recall (F (1, 21) = 7.095, P = .015, 95% CI -2.43-.30), recognition (F (21) = 8.885, P = .007, 95% CI -1.70- -.30), and SCWT (F (1 ,21) = 5.504, P = .029, 95% CI 4.38-72.78) but not on WAIS-IV-DS (F (20) = -1.237, P = .230, 95% CI -3.07-.78). There was no significant influence of therapy duration and CAPS-5 pre-treatment scores. There were small-medium nonsignificant correlations between CAPS-5 and cognitive performance pre-post differences, and between most cognitive measures and sleep problems, depressive disorder, and physical inactivity. CONCLUSIONS: Cognitive functioning on memory and attention possible increased in older adults with PTSD after EMDR treatment. Further research is needed with a larger sample and a control condition to corroborate these findings and to identify the possible mediating role of modifiable risk factors.

Can personality disorder be accurately assessed in older age? A differential item functioning analysis of ICD-11 inventories.

OBJECTIVES: The contested categorical personality disorder (PD) criteria are not well suited to inform PD diagnoses in older adults. Yet, the classification of PDs is undergoing a critical transition phase with a paradigm shift to a dimensional approach for diagnosing PDs. No special attention was given to the expression of PDs in older age when the dimensional ICD-11 model was developed. Given that PDs are highly prevalent in older adults, there is an urgent need to examine if ICD-11 related instruments are able to adequately assess for PDs in older adults. METHODS: The age-neutrality of ICD-11 measures was examined in a sample of 208 Dutch community-dwelling adults (N = 208, M age = 54.96, SD = 21.65), matched on sex into 104 younger (age range 18-64) and 104 older (age range 65-93) adults. An instrument is considered not to be age-neutral if a collective large level of differential item functioning (DIF) exists in a group of items of an instrument (i.e., 25% or more with DIF). We therefore set out to detect possible DIF in the following ICD-11 self-report measures: the Standardized Assessment of Severity of Personality Disorder (SASPD), the Personality Inventory for ICD-11 (PiCD), and the Borderline Pattern Scale (BPS). RESULTS: DIF analyses using a non-parametric odds ratio approach demonstrated that SASPD, PiCD, and BPS were age-neutral with less than 25% of items showing DIF. Yet, impact of DIF at scale level, examined by way of differential test functioning (DTF), indicated a DTF effect on the SASPD total score. CONCLUSIONS: These results of age-neutrality of the PiCD and BPS are promising for measuring ICD-11 traits and the borderline pattern. Yet, the age-neutral measurement of PD severity requires further research. With a rapidly aging population, its accurate assessment across the entire adult life span, including older age, is a prerequisite for an adequate detection of PDs.

Differentiation of Self and Interpersonal Functioning with the Level of Personality Functioning Scale - Brief Form 2.0.

Research on Criterion A of the alternative model for personality disorders is recently expanding and provides mixed results concerning the unidimensional operational definition of severity by the model, characterized by impaired self (identity and self-direction) and interpersonal (empathy and intimacy) functioning. Studies resulted in one, as well as two or more factor structures. The present study demonstrated the importance of the structural and relational differentiation of self and interpersonal dimensions of personality functioning. One thousand seventy-four participants (community and clinical mixed sample) completed the Level of Personality Functioning Scale - Brief Form 2.0 (LPFS-BF 2.0), the Personality Inventory for DSM-5 Short Form and the Questionnaire for the World Health Organization Disability Assessment. An LPFS-BF 2.0 two-factor structure with self and interpersonal functioning factors was corroborated by confirmatory factor analyses and bifactor modeling. Joint Exploratory Factor Analysis of the LPFS-BF 2.0 domains with maladaptive personality domains clearly differentiated the personality functioning factors. While the self-functioning factor was more closely linked to negative affect (and to disinhibition and psychoticism), the interpersonal functioning factor connected to detachment. Self-functioning predicted functional impairment along and beyond personality domains. The LPFS-BF 2.0 appears a useful tool for clinical routine monitoring of both self and interpersonal functioning.

Feasibility of EMDR toward Personality Functioning in Older Adults with PTSD.

OBJECTIVES: Severe posttraumatic stress disorder (PTSD) in older adults (≥60 years) has been found to be associated with maladaptive personality functioning and personality disorders (PD). Emerging evidence in adults supports that reprocessing adverse events with Eye Movement Desensitization and Reprocessing (EMDR) could improve personality functioning and reduce full PDdiagnosis. METHODS: A multicenterfeasibilitystudy in 24 older PTSD-patients receiving weekly EMDR-sessions for either 3, 6 or 9 months. A linear-mixed-model was used with personality functioning (SIPP-SF) as dependent variable and time, PTSD-severity (CAPS-5), and "othertreatment" as predictor variables. Secondary, pre- and posttreatment percentages were calculated for the PDspresence. RESULTS: Symptom changes over time showed a significant influence of CAPS-5 on SIPP-SF (b = -1.40, 95% CI=[-2.48 to -0.33], p = .012), no significant effect of time for total SIPP-SF, and a significant improvement of SIPP-SF "identityintegration"-scale over time (b = 9.20, 95% CI=[0.97-17.42], p = .029). There was a marginal significant effect of "othertreatment" (b = 8.42, 95% CI=[-0.30-17.13], p = .058). There was 31% full PDs-decrease. CONCLUSIONS: Observed improvements in personality functioning from pre to post EMDRtreatment were explained by PTSD-severity. Identityintegration improved significantly over time. Results suggest that participants with "othertreatment" showed more severe baseline-pathology and thus lower personality functioning. CLINICAL IMPLICATIONS: EMDR, in addition to being a feasible treatment option for older adults with PTSD, improves personality functioning and reduces the presence of PDs over time.'

Assessment of Personality Disorders in Older Adults. A Practice Guide.

Assessment of personality disorders (PDs) in older adults is a nuanced trade of its own. The aim of this practice guide is to illustrate gerontological assessment challenges using 3 case vignettes. We argue that it is important to pay extra attention to the influence of cognitive and medical (somatic) disorders on personality functioning in older adults during personality assessment. We also note that information provided by informants contributes added value to personality assessment. Personality assessment should be sufficiently age-specific to prevent overdiagnosis or underdiagnosis in older adults. Furthermore, given the reduced psychological or somatic capacity of some older adults, phased or sequential personality assessment is recommended. This should be focused on the assessment questions to be answered, for example starting with short general screening of personality functioning, followed by more in-depth exploration. Personality assessment should be kept as brief and simple as possible in terms of formulation of the items.

The role of maladaptive personality in behavioural and psychological symptoms in dementia.

BACKGROUND: Although research demonstrated a significant link between premorbid normative personality traits and the severity of behavioural and psychological symptoms in dementia (BPSD) and associated emotional distress of the caregiver, little is known about the relationship of BPSD symptoms and associated distress with maladaptive traits. METHOD: Informants (N = 182) of Dutch nursing home residents with dementia aged 65+, completed the Neuropsychiatric Inventory Questionnaire to assess the severity of BPSD and associated emotional distress. Premorbid maladaptive personality traits were evaluated using informant versions of a brief version of the Personality Inventory for Diagnostic and Statistical manual of Mental Disorders-5 (PID-5-BF), and two age-specific personality measures, the Informant Personality Questionnaire (HAP), and Gerontological Personality disorder Scale. Relationships between premorbid personality and BPSD were investigated with correlational and ordinal regression analyses. RESULTS: BPSD severity and distress were associated with medium sized correlations to Negative Affectivity, Antagonism and indications of personality disorder presence. The emotional distress also correlated with a medium effect with Detachment. Higher scores on maladaptive personality traits increased the odds of higher BPSD severity and distress. CONCLUSION: Results found with age-specific personality measures were in line with results found with other measures of (mal)adaptive traits. Several maladaptive personality traits had a significant relationship with the BPSD severity and associated emotional distress. We therefore encourage to implement personality assessment within BPSD treatment strategies. This way care becomes more person-focused and more tailored to the specific needs of patients and caregivers.

Transitions in robust and prefrail octogenarians after 1 year: the influence of activities of daily living, social participation, and psychological resilience on the frailty state.

BACKGROUND: Knowledge opportunities lie ahead as everyday activities, social participation, and psychological resilience might be important predictors for frailty state transitioning in the oldest old. Therefore, this article aims to examine whether changes in basic-, instrumental-, advanced- activities of daily living (b-, i-, a-ADLs), social participation, and psychological resilience predict both a transition from robustness to prefrailty or frailty and vice versa among community-dwelling octogenarians over a follow-up period of one year. METHODS: To evaluate worsened and improved frailty transitions after one year in 322 octogenarians (Mage = 83.04 ± 2.78), the variables sex, ADLs (b-ADL-DI, i-ADL-DI, a-ADL-DI as baseline and as difference after 6 months values), the CD-RISC (Connor-Davidson Resilience Scale, as baseline and as difference after 6 months), the social participation variables (total participation score, being a member, total number of memberships, level of social participation, being a board member, volunteering, and formal participation as baseline and as difference after 6 months values), were included in a logistic regression analysis. RESULTS: Limitations in a-ADLs at baseline (OR: 1.048, 95% confidence interval, 1.010-1.090) and an increment of limitations in a-ADLs after 6 months (OR: 1.044, 95% confidence interval, 1.007-1.085) were predictors to shift from robust to a worsened frailty state after one year follow-up. Additionally, being a woman (OR: 3.682, 95% confidence interval, 1.379-10.139) and social participation, specifically becoming a board member in 6 months (OR: 4.343, 95% confidence interval, 1.082-16.347), were protectors of robustness and thus related to an improved frailty transition after one year. CONCLUSIONS: Encouraging healthy lifestyle behaviors to help the maintenance of ADLs, possibly leading to more social participation, could be promising in the prevention of frailty.

A meta-structure for DSM-5 and ICD-11 pathological traits and the differentiation of personality functioning at different trait levels in older adults.

OBJECTIVES: Categorical criteria are not well suited to inform personality disorder (PD) diagnoses in older adults. More promising are the ICD-11 and DSM-5 alternative models. Both conceptualize PD by level of severity and maladaptive traits. Severity is conditional for making a PD diagnosis. Trait levels portray stylistic differences in PD expression. Yet, in older adults the hierarchical trait structure is unknown. Neither is the differentiation of the severity criterion from maladaptive traits confirmed. METHODS: A series of exploratory factor analyses with progressively greater numbers of factors were conducted to examine the hierarchical trait structure in 293 community dwelling older adults. The on average differentiation of a single higher order personality functioning factor from trait factors at succeeding levels of the hierarchy was estimated with Cohen q effect size. RESULTS: Six meaningful trait levels were identified. From the fourth trait level on the general personality functioning factor shared less than 15% variance on average with the trait factors. Trait factors at the sixth level corresponded to both DSM-5 and ICD-11 pathological traits. CONCLUSION: A future nosology integrating DSM-5 and ICD-11 trait proposals would be applicable in older adults. Personality functioning can be differentiated from traits, so separate assessment of traits and severity is worthwhile.

[Integration of the DSM-5 and ICD-11 Maladaptive Traits in Older Adults: Construct Validity of the PID-5-BF+M]. / Integratie van de DSM-5 en ICD-11 Maladaptieve Trekken bij Ouderen: Constructvaliditeit van de PID-5-BF+M.

BACKGROUND: The Personality Inventory for DSM-5 Brief Form + Modified (PID-5-BF+M) is a self-report questionnaire measuring maladaptive personality traits, as defined by the dimensional classifications of personality disorders in DSM-5 Section 3 and ICD-11. The instrument combines both classifications to capture six personality domains and 18 underlying personality facets, operationalized by two items each. This study examined the construct validity of this questionnaire in older adults, by examining the factor structure and the reliability of the domains and facets. Additionally, the study investigated the relationship between maladaptive personality traits and resilience, as measured by the Connor-Davidson Resilience Scale (CD-RISC). METHOD: The PID-5-BF+M was administered to 251 older adults from the general population, 104 of the respondents also filled in the CD-RISC. RESULTS: The hierarchical factor structure of the PID-5-BF+M was corroborated in in older adults. Additionally, the domain and facet scales were found to be internally consistent. The correlations with the CD-RISC showed logical associations. The domain of Negative Affectivity and the facets Emotional Lability, Anxiety and Irresponsibility were negatively associated with resilience. CONCLUSION: Based on these results, this study supports the construct validity of the PID-5-BF+M in older adults. However, future research on the age-neutrality of the instrument is still needed.

Age-neutrality of the SCID-II: Differential Item Functioning in Younger Outpatients (Aged 20-45) and Older Outpatients (Aged 65+).

OBJECTIVES: Measurements are often developed for the assessment of personality disorders (PDs) in younger adults and seldom evaluated on the applicability in older adults. Remarkably, research has not yet been conducted into age-group appropriateness of the gold standard for the assessment of PDs, known as Structured Clinical Interview for DSM-IV Personality Disorders (SCID-II). Therefore, the current study empirically investigated the age-neutrality of the PDs assessed by the SCID-II. METHODS: Age-neutrality was examined in 84 younger adults (aged 20-45 years) and 68 older adults (aged 65-85) by Differential Item Functioning (DIF). The impact of DIF on scale level was further examined using Differential Test Functioning analyzes to examine the impact of the amount of DIF variance in the items on scale level. RESULTS: Overall, the great majority, 95.8% of the categorically measured items and 87.5% of the dimensionally measured items, was endorsed in the same way by younger adults and older adults with equal scores on the PD scale. Subsequent analyzes revealed no large DTF for PD scales. CONCLUSIONS: Overall the SCID-II in an outpatient population is age-neutral for both categorically and dimensionally scored PD scales. CLINICAL IMPLICATIONS: The SCID-II can be used for the assessment of PDs in older adults.

Feasibility of EMDR in Older Adults with PTSD to Reduce Frailty and Improve Quality of Life.

OBJECTIVES: Posttraumatic stress disorder (PTSD) after exposure to multiple (childhood) trauma's is strongly associated with accelerated aging and high psychiatric and somatic comorbidity, influencing frailty and Quality of Life (QoL) in older adults. Eye Movement Desensitization therapy (EMDR) addresses psychological and physiologic symptoms stemming from adverse life events and therefore could influence frailty and QoL in older adults. METHODS: We conducted a multi-center feasibility study (two psychiatric hospitals) in Dutch older outpatients (N = 24; ≥60 years) with PTSD. Participants received weekly EMDR-treatment during the course of the trial (3 months to a maximum of 9 months). Frailty (Groninger Frailty Indicator) and QoL (EuroQol 5D-3L), were assessed pre- and posttreatment. RESULTS: A linear mixed-model approach showed significant reduction of frailty (F(1,23) = 9.019, p = .006) and improvement of QoL (F(1,23) = 13.787, p = .001). For both frailty and QoL, there was no significant influence of Clinician-Administered PTSD Scale (CAPS-5) pre-treatment score, therapy duration, and neither an interaction effect of therapy duration x CAPS-5 pre-treatment score. CONCLUSIONS: EMDR with older adults with PTSD showed a significant reduction of frailty and improvement of QoL. Randomized controlled studies are needed to more precisely study the impact of trauma-focused treatment in older adults on frailty and QoL and the implications this might have for lessening disease burden. CLINICAL IMPLICATIONS: Screening for PTSD in older frail adults is important to treat PTSD as a possible way to reduce frailty and improve QoL.

Does psychological resilience mediate the relation between daily functioning and prefrailty status?

OBJECTIVES: Understanding of prefrailty's relationship with limitations in activities of daily living (ADLs) moderated by psychological resilience is needed, as resilience might support ADLs' maintenance and thus protect against frailty. Therefore, this study aims to analyze the influence of psychological resilience (using the Connor-Davidson Resilience Scale; CD-RISC) on the relation between ADLs and frailty status of older individuals (i.e. prefrail versus robust). DESIGN: Cross-sectional design. SETTING: UZ Brussels, Belgium. PARTICIPANTS: Robust (Fried 0/4;n = 214; Age = 82.3 ± 2.1yrs) and prefrail (Fried 1-2/4; n = 191; Age = 83.8 ±3.2yrs) community-dwelling older individuals were included. MEASUREMENTS: Frailty scores were obtained from weight loss, exhaustion, gait speed, and grip strength. A total Disability Index (DI) expressed dependency for basic (b-), instrumental (i-), and advanced (a-)ADLs. Mediation was investigated by estimating direct and indirect effects of all levels of ADLs and CD-RISC total score on prefrailty/robustness using a stepwise multiple regression approach. RESULTS: Prefrailty/robustness significantly correlated with a-ADL-DI (point-biserial correlation (rpb) = 0.098; p<0.05). Adjusted for age and gender, the a-ADL-DI (p<0.05) had a significant protective direct effect against prefrailty. No effects were found with the CD-RISC total score. CONCLUSIONS: Less limitation in a-ADLs is a directly correlated factor of prefrailty and might represent a higher likelihood of robustness.

Severity Indices of Personality Problems-Short Form in Old-Age Psychiatry: Reliability and Validity.

The Severity Indices of Personality Problems (SIPP; Verheul et al., 2008) is a popular self-report questionnaire that measures severity of maladaptive personality functioning. Two studies demonstrated the utility of the short form (SIPP-SF) among older adults but validation in clinical settings is lacking. Therefore, we examined the psychometric properties of the SIPP-SF in a large sample of older adult Dutch outpatients (N = 124; age range = 60-85 years, M = 69.8, SD = 5.3). The SIPP-SF domains showed good to excellent internal reliability (Cronbach's α = .75-.91) and effectively discriminated between participants with and without a personality disorder, as assessed with the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II). Convergent validity of the SIPP-SF was examined with instruments for measuring personality pathology among older adults (Informant Personality questionnaire [HAP]; Gerontological Personality Disorders Scale [GPS]). The GPS generally correlated with the SIPP-SF domains in expected directions, with small to large effect sizes. For the HAP, only 1 scale correlated with all SIPP-SF domains. No associations were found between the SIPP-SF and psychiatric symptomatology as measured by the Brief Symptom Inventory (BSI). The SIPP-SF appears to be a promising instrument for assessing maladaptive personality functioning among older adult outpatients.

Flexibility as a Mediator between Personality and Well-Being in Older and Younger Adults: Findings from Questionnaire Data and a Behavioral Task.

BACKGROUND: Personality is a predictor of subjective well-being in older and younger adults, but less is known about the underlying mechanisms. One possible mechanism is psychological flexibility, which is the ability to keep an open mind-set in order to make flexible choices adapted to the situation at hand. METHODS: We recruited 60 younger and 60 older adults and measured personality and well-being by questionnaires. To assess psychological flexibility we used questionnaires and a behavioral task assessing flexibility in information acquisition when making choices. RESULTS: Based on indirect effect analysis of the questionnaire data, in line with former research, our data show that in both age groups, the relationship between personality and well-being runs through psychological flexibility. CONCLUSION: This implies that training psychological flexibility may be a promising approach to increase well-being in both older and younger adults. This effect could not be demonstrated with our choice flexibility task, thus more research is needed to uncover why this could not be measured at the behavioral level.

[Standardized assessment of personality disorders in older adults: State-of-the-art.] / Gestandaardiseerd meten van persoonlijkheids­stoornissen bij ouderen.

The double ageing evolution in Europe is a tremendous challenge for health care. Older adults with a personality disorder place an additional burden: they have more somatic and psychiatric co-morbidity than those without a personality disorder. Moreover, they experience less quality of life than individuals without personality disorders. This is in sharp contrast to the dearth of empirical research concerning the construct of personality disorders in later life, the very limited amount of available diagnostic tools, criteria of classification systems like DSM not being attuned to the elderly context and the lack of age-neutrality of popular instruments to measure personality disorders. Therefore, in the Netherlands and Belgium a start was made to develop and validate age-specific instruments and to examine the applicability of the alternative dimensional-hybrid DSM-5 classification of personality disorders in older adults. These recent developments and how to apply them for a personalized assessment in older adults will be discussed. Finally, we advise a phased test-based diagnostic approach in which the above-mentioned instruments, combined with measures of adaptive features or more specific tests, can contribute to an assessment optimizing the balance between restricting the load for the older patient and still being sufficiently comprehensive to result in a personalized approach of the diagnostic process.

[Epidemiological aspects of personality disorders in older adults]. / Persoonlijkheidsstoornissen bij ouderen: Epidemiologische aspecten.

Despite growing clinical attention to personality disorders in older adults (≥ 55 yrs.), empirical research addressing personality pathology in late life is scarce. Given the ageing of the population globally, scientific knowledge in this area is of vital importance. This article gives an overview of the epidemiological aspects of personality disorders in older adults, such as prevalence, the course and the impact on various domains of functioning.

[The Cognitive Model for Behavioural Interventions for older adults with neurocognitive disorders and co-morbid maladaptive personality traits]. / Mediatieve behandeling bij mensen met zowel neuro­cognitieve stoornissen als persoonlijkheids­problematiek.

The starting point of this study is that comorbid maladaptive personality traits (CMPT) influence behavioral and psychological symptoms of dementia (BPSD). The purpose of this study was to develop and investigate the feasibility of the Cognitive Model for Behavioral Interventions (CoMBI). Forty patients with BPSD and CMPT from two geriatric psychiatric departments were treated with CoMBI. Feasibility was assessed through patient flow, compliance to, and acceptability of the treatment for family members and psychiatric nurses. CMPT was assessed using informant-based questionnaires. Change in BPSD was assessed using pre- and posttests. To determine differences in BPSD, Wilcoxon signed rank tests were conducted and effect sizes were computed. Of 312 patients admitted to the geriatric psychiatric wards, 138 patients were found eligible. 64 (46.4%) patients were discharged from the wards before or shortly after the pretest, in 28 (20.3%) cases CoMBI could not be not applied. Eventually, forty (29.0%) patients were included for analysis. Wilcoxon signed rank tests demonstrated a significant decrease of BPSD with medium (r=0.45) to large (r=0.56) effect sizes. CoMBI is highly feasible for treating challenging behavior in patients with BPSD and CMPT. CoMBI is associated with a significant decrease of challenging behaviors regardless of etiology.

Focusing on positive outcomes in frailty research: development of a short well-being instrument for older adults (SWIO).

ABSTRACTObjective:Studies of frailty have tended to focus on adverse outcomes. This study aims to develop a short instrument that identifies a positive outcome, namely, the level of well-being in older adults at risk of frailty. METHOD: 871 older adults (49.4% women; mean age 75.72 years; SD = 8.05) with a frailty risk profile participated in the first wave of the D-SCOPE study. The possible domains of well-being were identified using a bottom-up approach. Exploratory Structural Equation Modeling (ESEM) and multidimensional Item Response Theory (IRT) analysis of 17 items in 4 domains measuring well-being was performed on a calibration sample (n = 435) to develop the instrument. The instrument was subsequently corroborated by confirmatory factor analysis and convergent/divergent relations with relevant external measures in a validation sample (n = 436). RESULTS: The ESEM three-factor solution, with the subdimensions of sense of mastery, meaning in life, and life satisfaction, displayed good fit to the data (RMSEA = 0.070). For each dimension, the three best discriminating items were retained for the instrument following IRT analysis. Internal consistency of these dimensions was good in the validation sample (sense of mastery α = 0.864, meaning in life α = 0.715, and life satisfaction α = 0.782). The confirmatory factor analysis (CFA) three-factor model also showed good fit to the data (RMSEA = 0.064). Small to large zero-order correlations with the external measures were as expected. CONCLUSIONS: Using a bottom-up approach, this study developed a short instrument to identify levels of well-being in vulnerable or frail older adults. The instrument can be applied in primary care and prevention programs.

How is personality related to well-being in older and younger adults? The role of psychological flexibility.

OBJECTIVES: Personality is known to be a reliable predictor of well-being. However, it is rather difficult to influence the personality of individuals in order to improve their well-being. Therefore, it is important to examine possible underlying mechanisms or indirect effects. Consequently, the aim of the current study was to investigate whether psychological flexibility is a mechanism explaining the relationship between personality and well-being. Given the evidence that age-related differences exist in personality, flexibility, and well-being, we also investigated whether our indirect effects model differed in both older and younger adults. DESIGN: We used a cross-sectional design. SETTING: Participants were asked to fill in questionnaires at home. PARTICIPANTS: We recruited 138 younger (25-50 years) and 120 older (65+) adults from a community-dwelling population. MEASUREMENTS: Self-report questionnaires were used to assess (mal)adaptive personality traits (Big Five), psychological flexibility, and affective and general subjective well-being. RESULTS: Similar indirect effects were found in older and younger adults: Psychological flexibility is a mechanism explaining the link between personality and well-being. In nearly half of the models, psychological flexibility even fully accounted for the effect of personality on well-being. CONCLUSION: These results have important implications for clinical practice, since psychological flexibility, contrary to personality traits, is malleable. Interventions to increase psychological flexibility already exist and are validated in both older and younger samples. They may hold promise to improve well-being.

Continuity Between DSM-5 Section II and III Personality Disorders in a Dutch Clinical Sample.

The goal of this study was to evaluate the continuity across the Section II personality disorders (PDs) and the proposed Section III model of PDs in the Diagnostic and Statistical Manual of Mental Disorders (5th ed. [DSM-5]; American Psychiatric Association, 2013a ). More specifically, we analyzed association between the DSM-5 Section III pathological trait facets and Section II PDs among 110 Dutch adults (M age = 35.8 years, range = 19-60 years) receiving mental health care. We administered the Structured Clinical Interview for DSM-IV Axis II Disorders to all participants. Participants also completed the self-report Personality Inventory for DSM-5 (PID-5) as a measure of pathological trait facets. The distributions underlying the dependent variable were modeled as criterion counts, using negative binomial regression. The results provided some support for the validity of the PID-5 and the DSM-5 Section III Alternative Model, although analyses did not show a perfect match. Both at the trait level and the domain level, analyses showed mixed evidence of significant relationships between the PID-5 trait facets and domains with the traditional DSM-IV PDs.