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Biological Reviews of the Cambridge... Apr 2022Within populations, individuals often show repeatable variation in behaviour, called 'animal personality'. In the last few decades, numerous empirical studies have... (Meta-Analysis)
Meta-Analysis
Within populations, individuals often show repeatable variation in behaviour, called 'animal personality'. In the last few decades, numerous empirical studies have attempted to elucidate the mechanisms maintaining this variation, such as life-history trade-offs. Theory predicts that among-individual variation in behavioural traits could be maintained if traits that are positively associated with reproduction are simultaneously associated with decreased survival, such that different levels of behavioural expression lead to the same net fitness outcome. However, variation in resource acquisition may also be important in mediating the relationship between individual behaviour and fitness components (survival and reproduction). For example, if certain phenotypes (e.g. dominance or aggressiveness) are associated with higher resource acquisition, those individuals may have both higher reproduction and higher survival, relative to others in the population. When individuals differ in their ability to acquire resources, trade-offs are only expected to be observed at the within-individual level (i.e. for a given amount of resource, if an individual increases its allocation to reproduction, it comes at the cost of allocation to survival, and vice versa), while among individuals traits that are associated with increased survival may also be associated with increased reproduction. We performed a systematic review and meta-analysis, asking: (i) do among-individual differences in behaviour reflect among-individual differences in resource acquisition and/or allocation, and (ii) is the relationship between behaviour and fitness affected by the type of behaviour and the testing environment? Our meta-analysis consisted of 759 estimates from 193 studies. Our meta-analysis revealed a positive correlation between pairs of estimates using both survival and reproduction as fitness proxies. That is, for a given study, behaviours that were associated with increased reproduction were also associated with increased survival, suggesting that variation in behaviour at the among-individual level largely reflects differences among individuals in resource acquisition. Furthermore, we found the same positive correlation between pairs of estimates using both survival and reproduction as fitness proxies at the phenotypic level. This is significant because we also demonstrated that these phenotypic correlations primarily reflect within-individual correlations. Thus, even when accounting for among-individual differences in resource acquisition, we did not find evidence of trade-offs at the within-individual level. Overall, the relationship between behaviour and fitness proxies was not statistically different from zero at the among-individual, phenotypic, and within-individual levels; this relationship was not affected by behavioural category nor by the testing condition. Our meta-analysis highlights that variation in resource acquisition may be more important in driving the relationship between behaviour and fitness than previously thought, including at the within-individual level. We suggest that this may come about via heterogeneity in resource availability or age-related effects, with higher resource availability and/or age leading to state-dependent shifts in behaviour that simultaneously increase both survival and reproduction. We emphasize that future studies examining the mechanisms maintaining behavioural variation in populations should test the link between behavioural expression and resource acquisition - both within and among individuals. Such work will allow the field of animal personality to develop specific predictions regarding the mediating effect of resource acquisition on the fitness consequences of individual behaviour.
Topics: Animals; Personality; Phenotype; Reproduction
PubMed: 34859575
DOI: 10.1111/brv.12819 -
Journal of Clinical Psychology Dec 2019Difficulties in emotion regulation may contribute to the development of mania. This review aimed to assess how emotion regulation strategies reported by individuals at... (Review)
Review
OBJECTIVES
Difficulties in emotion regulation may contribute to the development of mania. This review aimed to assess how emotion regulation strategies reported by individuals at risk of mania compare with clinical and nonclinical controls.
METHODS
Search terms relating to mania risk and emotion regulation were entered into three databases. Sixteen studies were included.
RESULTS
Mania risk was typically associated with overall endorsement of emotion regulation strategies, particularly dampening, and positive and negative rumination.
CONCLUSIONS
Findings were limited by overall lack of evidence for individual strategies, lack of consideration of key mediating factors and reliance upon self-report designs.
Topics: Bipolar Disorder; Emotional Regulation; Humans; Male; Personality Inventory; Risk; Rumination, Cognitive
PubMed: 31385293
DOI: 10.1002/jclp.22841 -
Journal of Anxiety Disorders Dec 2020Interpersonal dysfunction is posited to maintain worry and generalized anxiety disorder (GAD). It has been suggested that the low remission rates in psychotherapy for... (Review)
Review
Interpersonal dysfunction is posited to maintain worry and generalized anxiety disorder (GAD). It has been suggested that the low remission rates in psychotherapy for GAD may be attributable, in part, to inadequately addressing interpersonal dysfunction. This paper systematically reviewed the literature examining the moderating role of interpersonal dysfunction on GAD psychotherapy outcomes and change in interpersonal dysfunction over the course of GAD treatment. Thirteen studies were identified, seven of which examined the relationship between interpersonal dysfunction or distress and treatment outcome and nine investigated change in interpersonal dysfunction over the course of psychotherapy. The majority of studies indicated that interpersonal dysfunction improves following psychotherapy. However, there is preliminary evidence that not all subscales of interpersonal dysfunction improve, including subscales relevant to GAD pathology such as overly-nurturant dysfunction. Further, greater interpersonal dysfunction predicted worse treatment outcomes. As such, interpersonal dysfunction may hinder treatment success and further research is needed to delineate for whom additional or integrated interpersonal interventions may be needed. Approaches to target interpersonal dysfunction in GAD are discussed.
Topics: Anxiety; Anxiety Disorders; Humans; Personality Inventory; Psychotherapy; Treatment Outcome
PubMed: 33002755
DOI: 10.1016/j.janxdis.2020.102310 -
Psychiatry Research Jul 2017Despite a lack of proven efficacy, pre-employment or pre-duty screening, which alleges to test for vulnerability to PTSD and other mental health disorders, remains... (Review)
Review
Despite a lack of proven efficacy, pre-employment or pre-duty screening, which alleges to test for vulnerability to PTSD and other mental health disorders, remains common amongst emergency services. This systematic review aimed to determine the usefulness of different factors in predicting mental disorder amongst emergency workers and to inform practice regarding screening procedures. Systematic searches were conducted in MEDLINE, PsycINFO and EMBASE to identify cohort studies linking pre-employment or pre-duty measures in first responders with later mental health outcomes. Possible predictors of poor mental health were grouped into six categories and their overall level of evidence was assessed. Twenty-one prospective cohort studies were identified. Dynamic measures including physiological responses to simulated trauma and maladaptive coping styles (e.g. negative self-appraisal) had stronger evidence as predictors of vulnerability in first responders than more traditional static factors (e.g. pre-existing psychopathology). Personality factors (e.g. trait anger) had moderate evidence for predictive power. Based on the evidence reviewed, however, we are unable to provide emergency services with specific information to enhance their current personnel selection. The results indicate that pre-duty screening protocols that include personality assessments and dynamic measures of physiological and psychological coping strategies may be able to identify some personnel at increased risk of mental health problems. However, further longitudinal research is required in order to provide meaningful guidance to employers on the overall utility of either pre-employment or pre-duty screening. In particular, research examining the sensitivity, specificity and positive predictive values of various screening measures is urgently needed.
Topics: Adaptation, Physiological; Adaptation, Psychological; Emergency Responders; Employment; Humans; Mental Disorders; Occupational Diseases; Personality Assessment; Prospective Studies; Risk Assessment
PubMed: 28365535
DOI: 10.1016/j.psychres.2017.03.047 -
Prevention Science : the Official... May 2024Poor parental mental health and stress have been associated with children's mental disorders, including attention-deficit/hyperactivity disorder (ADHD), through social,... (Meta-Analysis)
Meta-Analysis Review
A Systematic Review and Meta-analysis of Parental Depression, Antidepressant Usage, Antisocial Personality Disorder, and Stress and Anxiety as Risk Factors for Attention-Deficit/Hyperactivity Disorder (ADHD) in Children.
Poor parental mental health and stress have been associated with children's mental disorders, including attention-deficit/hyperactivity disorder (ADHD), through social, genetic, and neurobiological pathways. To determine the strength of the associations between parental mental health and child ADHD, we conducted a set of meta-analyses to examine the association of parent mental health indicators (e.g., parental depression, antidepressant usage, antisocial personality disorder, and stress and anxiety) with subsequent ADHD outcomes in children. Eligible ADHD outcomes included diagnosis or symptoms. Fifty-eight articles published from 1980 to 2019 were included. We calculated pooled effect sizes, accounting for each study's conditional variance, separately for test statistics based on ADHD as a dichotomous (e.g., diagnosis or clinical cutoffs) or continuous measurement (e.g., symptoms of ADHD subtypes of inattentiveness and hyperactivity/impulsivity). Parental stress and parental depression were significantly associated with increased risk for ADHD overall and both symptoms and diagnosis. Specifically, maternal stress and anxiety, maternal prenatal stress, maternal depression, maternal post-partum depression, and paternal depression were positively associated with ADHD. In addition, parental depression was associated with symptoms of ADHD inattentive and hyperactive/impulsive subtypes. Parental antisocial personality disorder was also positively associated with ADHD overall and specifically ADHD diagnosis. Prenatal antidepressant usage was associated with ADHD when measured dichotomously only. These findings raise the possibility that prevention strategies promoting parental mental health and addressing parental stress could have the potential for positive long-term impacts on child health, well-being, and behavioral outcomes.
Topics: Humans; Attention Deficit Disorder with Hyperactivity; Antisocial Personality Disorder; Child; Risk Factors; Antidepressive Agents; Stress, Psychological; Anxiety; Parents; Depression; Female
PubMed: 35641729
DOI: 10.1007/s11121-022-01383-3 -
Plastic and Reconstructive Surgery Jun 2015Facial cosmetic surgery is becoming more popular. Patients generally indicate they are satisfied with the results. Certain patient characteristics, however, have been... (Review)
Review
BACKGROUND
Facial cosmetic surgery is becoming more popular. Patients generally indicate they are satisfied with the results. Certain patient characteristics, however, have been described as negative predictors for satisfaction. Psychopathology such as body dysmorphic disorder and personality disorders are notorious. Psychosocial and cultural factors are more difficult to distinguish. This systematic review defines the predictors, other than body dysmorphic disorder, of an unsatisfactory outcome after facial cosmetic surgery. The authors are also interested in whether valid preoperative assessment instruments are available to determine these factors.
METHODS
An extensive systematic PubMed/MEDLINE and Cochrane Library search was performed. In addition, relevant studies from the reference lists of the selected articles were added. There were no publication-year restrictions, and the last search was conducted on July 20, 2014. All factors described as negative predictors for patient satisfaction after facial cosmetic surgery were identified.
RESULTS
Twenty-seven articles were analyzed, including 11 prospective studies, two retrospective studies, one case study, eight reviews, and five expert opinions. The following factors were identified: male sex, young age, unrealistic expectations, minimal deformities, demanding patients, "surgiholics," relational or familial disturbances, an obsessive personality, and a narcissistic personality.
CONCLUSIONS
This review indicates the possible demographic and psychosocial predictors for an unsatisfactory outcome of facial cosmetic surgery. A brief personality assessment tool that could be used to address predictors preoperatively was not found. The authors suggest use of the Glasgow Benefit Inventory to assess patient satisfaction postoperatively. Further research is being undertaken to develop such an instrument.
Topics: Adult; Aged; Esthetics; Female; Humans; Incidence; Male; Middle Aged; Netherlands; Patient Satisfaction; Postoperative Complications; Predictive Value of Tests; Rejuvenation; Rhinoplasty; Rhytidoplasty; Risk Assessment; Surgery, Plastic
PubMed: 26017596
DOI: 10.1097/PRS.0000000000001264 -
Journal of Dual Diagnosis 2021Substance abuse comorbidity is highly prevalent and is linked to detrimental outcomes in individuals with psychotic disorder, but the role of personality traits as the... (Meta-Analysis)
Meta-Analysis
Substance abuse comorbidity is highly prevalent and is linked to detrimental outcomes in individuals with psychotic disorder, but the role of personality traits as the underlying mechanism is being increasingly underscored. This study aimed to profile temperamental risks of comorbid substance use disorder in psychotic disorders by performing meta-analyses on personality trait differences between psychotic disorders with comorbidity (dual diagnosis; DD) and without it (psychotic disorders; PSD). A systematic review of English articles using PubMed, MEDLINE, Scopus, Google Scholar, and ProQuest Dissertation and Theses. Only original empirical studies including participants with diagnosis of psychotic disorders based on structured diagnostic interviews, with and without substance use disorder evaluated with reliable and valid tests were included. Articles were independently extracted by two authors using predefined data fields, including study quality indicators. All pooled analyses were based on random-effect models. Thirteen studies ( = 885) met our inclusion criteria. All effect-size estimates were calculated based on means and standard deviations of included measures. Separate effect size estimates were obtained for four traits in the UPPS model (negative urgency, low premeditation, low perseverance, sensation seeking), four traits in the HS model (unconscientious disinhibition, negative affect, disagreeable disinhibition, positive affect) and trait anhedonia. Negative urgency (four studies with 262 participants; ES = 0.59; 95% confidence interval [CI] [0.34, 0.84]), low premeditation (five studies with 349 participants; ES = 0.60; 95% CI [0.39, 0.80]), sensation seeking (seven studies with 550 participants; ES = 0.63; 95% CI [0.17, 1.09]) and unconscientious disinhibition (five studies with 291 participants; ES = 0.36; 95% CI [0.13, 0.59]) were elevated in DD than PSD. Heterogeneity of sensation seeking was significant ( = 86.2%). The findings of the current meta-analysis highlight a unique profile of impulsive and externalizing trait personality domains pertaining to DD. The study emphasizes the importance of emotion regulation interventions targeting impulsivity or negative affect (i.e. negative urgency, low premeditation) in substance abuse comorbidity patients.
Topics: Diagnosis, Dual (Psychiatry); Humans; Impulsive Behavior; Personality; Psychotic Disorders; Substance-Related Disorders
PubMed: 33404373
DOI: 10.1080/15504263.2020.1839827 -
Frontiers in Psychology 2021Traditionally, it had been commonly believed that individuals in the same culture have personalities distinct from those of individuals in other cultures. This article...
Traditionally, it had been commonly believed that individuals in the same culture have personalities distinct from those of individuals in other cultures. This article examines this belief by critically reviewing relevant literature generated from two of the most widely investigated personality-based style constructs in the field of intellectual styles: the Jungian personality styles and the career personality styles proposed by Holland. It aims at answering the question of whether personality-based intellectual styles are culture specific or they are universal. To achieve this aim, based on the two broad cultural systems derived from Hofstede's model of four cultural dimensions and two major style types from Zhang and Sternberg's threefold model of intellectual styles, two research hypotheses were made. To test the hypotheses, two types of empirical literature centered on each of the two personality-based styles are reviewed: (1) cross-cultural comparative studies; and (2) within-culture studies investigating the association of the two style constructs with other human attributes and outcomes. Results suggest that although personality-based styles are related to culture, they cannot be culture specific; rather, they are fundamentally universal. These findings carry scientific value and have practical implications for education and beyond.
PubMed: 34744878
DOI: 10.3389/fpsyg.2021.717670 -
Journal of Psychosomatic Research Nov 2016Medication non-adherence following acute coronary syndrome (ACS) is associated with poor clinical outcomes. A systematic review and meta-analysis were undertaken to... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Medication non-adherence following acute coronary syndrome (ACS) is associated with poor clinical outcomes. A systematic review and meta-analysis were undertaken to identify psychosocial factors associated with medication adherence in patients with ACS.
METHODS
A search of electronic databases (Cochrane Library, Medline, EMBASE, PsycINFO, Web of Science, International Pharmaceutical Abstracts, CINAHL, ASSIA, OpenGrey, EthOS and WorldCat) was undertaken to identify relevant articles published in English between 2000 and 2014. Articles were screened against our inclusion criteria and data on study design, sample characteristics, predictors, outcomes, analyses, key findings and study limitations were abstracted.
RESULTS
Our search identified 3609 records, of which 17 articles met our inclusion criteria (15 independent studies). Eight out of ten studies found an association between depression and non-adherence. A meta-analysis revealed that depressed patients were twice as likely to be non-adherent compared to patients without depression (OR=2.00, 95% CI 1.57-3.33, p=0.015). Type D personality was found to predict non-adherence in both studies in which it was measured. Three out of three studies reported that treatment beliefs based on the Necessity-Concerns Framework predicted medication non-adherence and there was some evidence that social support was associated with better adherence. There was insufficient data to meta-analyse all other psychosocial factors identified.
CONCLUSION
There was some evidence that psychosocial factors, particularly depression, were associated with medication adherence following ACS. Targeting depressive symptoms, screening for Type D personality, challenging maladaptive treatment beliefs, and providing better social support for patients may be useful strategies to improve medication adherence.
Topics: Acute Coronary Syndrome; Databases, Factual; Depression; Humans; Medication Adherence; Predictive Value of Tests; Psychology; Type D Personality
PubMed: 27772555
DOI: 10.1016/j.jpsychores.2016.09.003 -
BMC Psychiatry Apr 2024Yoga can be used as a complementary intervention to conventional treatments, whether pharmacological or non-pharmacological. Sustained practice of yoga can generate a...
BACKGROUND
Yoga can be used as a complementary intervention to conventional treatments, whether pharmacological or non-pharmacological. Sustained practice of yoga can generate a series of benefits for individuals' quality of life and improve their physical fitness.
OBJECTIVE
To investigate the potential effects of yoga as an adjunct intervention in conditions involving impulse control issues, such as attention deficit hyperactivity disorder (ADHD), borderline personality disorder, bipolar affective disorder, and substance use disorders.
METHODS
We performed a systematic review of placebo-controlled, randomized trials of yoga in patients with impulsivity. PubMed, Web of Science, and Science Direct databases were searched for trials published up to January, 2023. Data were extracted from published reports and quality assessment was performed per Cochrane recommendations.
RESULTS
Out of 277 database results, 6 RCT were included in this systematic review. To assess the level of attention and impulsiveness, the following scales were analyzed: Barratt Impulsiveness, UPPS-P Impulsive Behavior scale, Conners' Continuous Performance Test IIª and Conners' Parent Rating Scale-Revised: Long.
CONCLUSIONS
Yoga didn't have a significant improvement in impulsivity when compared to placebo. There are many tools to assess impulsivity, but they mean different concepts and domains consisting in a weakness on comparison of yoga effects.
PROSPERO REGISTRATION
CRD42023389088.
Topics: Humans; Yoga; Quality of Life; Attention Deficit Disorder with Hyperactivity; Impulsive Behavior; Bipolar Disorder
PubMed: 38594701
DOI: 10.1186/s12888-024-05608-3