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26 result(s) for "Fernández-Rivas Aranzazu"
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Action initiation and punishment learning differ from childhood to adolescence while reward learning remains stable
Theoretical and empirical accounts suggest that adolescence is associated with heightened reward learning and impulsivity. Experimental tasks and computational models that can dissociate reward learning from the tendency to initiate actions impulsively (action initiation bias) are thus critical to characterise the mechanisms that drive developmental differences. However, existing work has rarely quantified both learning ability and action initiation, or it has relied on small samples. Here, using computational modelling of a learning task collected from a large sample ( N  = 742, 9-18 years, 11 countries), we test differences in reward and punishment learning and action initiation from childhood to adolescence. Computational modelling reveals that whilst punishment learning rates increase with age, reward learning remains stable. In parallel, action initiation biases decrease with age. Results are similar when considering pubertal stage instead of chronological age. We conclude that heightened reward responsivity in adolescence can reflect differences in action initiation rather than enhanced reward learning. Adolescence is often associated with heightened reward learning and impulsivity. Here the authors show in 742 people aged 9-18 that reward learning in fact remains stable with age, whilst punishment learning increases and action initiation decreases.
The methylome in females with adolescent Conduct Disorder: Neural pathomechanisms and environmental risk factors
Conduct Disorder (CD) is an impairing psychiatric disorder of childhood and adolescence characterized by aggressive and dissocial behavior. Environmental factors such as maternal smoking during pregnancy, socio-economic status, trauma, or early life stress are associated with CD. Although the number of females with CD is rising in Western societies, CD is under-researched in female cohorts. We aimed at exploring the epigenetic signature of females with CD and its relation to psychosocial and environmental risk factors. We performed HpaII sensitive genome-wide methylation sequencing of 49 CD girls and 50 matched typically developing controls and linear regression models to identify differentially methylated CpG loci (tags) and regions. Significant tags and regions were mapped to the respective genes and tested for enrichment in pathways and brain developmental processes. Finally, epigenetic signatures were tested as mediators for CD-associated risk factors. We identified a 12% increased methylation 5’ of the neurite modulator SLITRK5 ( FDR = 0.0046) in cases within a glucocorticoid receptor binding site. Functionally, methylation positively correlated with gene expression in lymphoblastoid cell lines. At systems-level, genes (uncorr. P < 0.01) were associated with development of neurons, neurite outgrowth or neuronal developmental processes. At gene expression level, the associated gene-networks are activated perinatally and during early childhood in neocortical regions, thalamus and striatum, and expressed in amygdala and hippocampus. Specifically, the epigenetic signatures of the gene network activated in the thalamus during early childhood correlated with the effect of parental education on CD status possibly mediating its protective effect. The differential methylation patterns identified in females with CD are likely to affect genes that are expressed in brain regions previously indicated in CD. We provide suggestive evidence that protective effects are likely mediated by epigenetic mechanisms impairing specific brain developmental networks and therefore exerting a long-term effect on neural functions in CD. Our results are exploratory and thus, further replication is needed.
Relationship between elimination disorders and internalizing‐externalizing problems in children: A systematic review and meta‐analysis
Elimination disorders are highly prevalent in childhood and often associated with clinically relevant comorbid psychological disorders. The aim of this study is to determine if, and to what extent, children with elimination disorders show higher internalizing and externalizing problems than their healthy peers. A multistep literature search was performed from database inception until May 1st, 2022. PRISMA/MOOSE-compliant systematic review (PROSPERO: CRD42022303555) were used to identify studies reporting on internalizing and/or externalizing symptoms in children with an elimination disorder and a healthy control (HC) group. First, a systematic review was provided. Second, where data allowed for it, a quantitative meta-analysis with random effects model was conducted to analyze the differences between the elimination disorder and the HC groups for internalizing and externalizing symptoms. Effect size was standardized mean difference. Meta-regression analyses were conducted to examine the effect of sex, age, and study quality. Funnel plots were used to detect a publication bias. Where found, the trim and fill method was used to correct it. 36 articles were included, 32 of them reporting on enuresis (  = 3244; mean age = 9.4; SD = 3.4; 43.84% female) and 7 of them on encopresis (  = 214; mean age = 8.6; SD = 2.3; 36.24% female). Children with an elimination disorder presented significantly lower self-concept (ES:0.42; 95%CI [0.08; 9.76];  = 0.017) and higher symptom scores for thought problems (ES:-0.26; 95%CI: -0.43;-0.09];  = 0.003), externalizing symptoms (ES: -0.20; 95%CI [-0.37;-0.03];  = 0.020), attention problems (ES:-0.37; 95%CI [-0.51;-0.22];  = 0.0001), aggressive behavior (ES:-0.33; 95%CI [-0.62;-0.04];  = 0.025) and social problems (ES:-0.39; 95%CI [-0.58;-0.21];  = 0.0001). Significant publication biases were found across several of the studied domains. No significant effect of sex, age or quality of the study score was found. Children with an elimination disorder may have significant internalizing and externalizing problems, as well as impaired self-concept. It is recommendable to screen for them in children with enuresis or encopresis and provide appropriate interventions.
Psychosis and substance abuse increase the COVID-19 mortality risk
BackgroundThe coronavirus disease 2019 (COVID-19) pandemic has been a global challenge. High mortality rates have been reported in some risk groups, including patients with pre-existing mental disorders.MethodsWe used electronic health records to retrospectively identify people infected due to COVID-19 (between March 2020 and March 2021) in the three territories of the Basque Country. COVID-19 cases were defined as individuals who had tested positive on a reverse transcription-polymerase chain reaction (PCR) test. Univariate and multivariate logistic regression models and multilevel analyses with generalized estimated equations were used to determine factors associated with COVID-19-related mortality and hospital admission.ResultsThe COVID-19 mortality rate was increased for patients with psychotic disorders [odds ratio (OR) adjusted: 1.45, 95% confidence interval (CI) (1.09–1.94), p = 0.0114] and patients with substance abuse [OR adjusted: 1.88, 95% CI (1.13–3.14, p < 0.0152)]. The mortality rate was lower for patients with affective disorders [OR adjusted: 0.80, 95% CI (0.61–0.99), p = 0.0407]. Hospital admission rates due to COVID-19 were higher in psychosis [OR adjusted: 2.90, 95% CI (2.36–3.56), p < 0.0001] and anxiety disorder groups [OR adjusted: 1.54, 95% CI (1.37–1.72), p < 0.0001]. Among admitted patients, COVID-19 mortality rate was decreased for those with affective disorders rate [OR adjusted: 0.72, 95% CI (0.55–0.95), p = 0.0194].ConclusionsCOVID-19-related mortality and hospitalizations rates were higher for patients with a pre-existing psychotic disorder.
Architecture, Urban Planning and Collective Identity: Bilbao as a Case Study
The emergence of a collective identity, a complex social and psychological process, may be linked to a specific place and a particular urban layout. Architecture demarcates interior and exterior spaces that not only frame our relationships but can also generate a mirror image of the internal world. The authors examine relevant contributions from the sparse psychoanalytic literature on this subject, to support their hypothesis that changes to a city's landscape, design, or architecture, when wholeheartedly embraced by its citizens, can serve to forge a new collective identity that helps to deal with absence, pain, and loss. They present the city of Bilbao, Spain, as a case study. This once thriving industrial city had collapsed into economic ruin, rife with social conflict, but since the 1990s, in an urban renewal, has emerged as a unique tourist destination. It has become a modern art and cultural center, symbolized by its most famous piece of contemporary architecture.
Stigma and discrimination towards people with schizophrenia and their family members
There is a scarcity of data regarding the actual stigma and discrimination experienced by schizophrenic patients and their relatives. Those experiences can vary significantly depending on the specific social group involved. We have explored such phenomena in our culture with a qualitative technique. We developed a qualitative study with focus groups of clinically stable schizophrenic outpatients (N = 18) and relatives (N = 26). Three groups were performed in each sample. Six categories of stigma and discrimination experiences were extracted from the patients' data: Mental illness vs. Lack of will, Prejudice related to dangerousness, Over-protection-infantilization, Daily social discrimination, Discrimination in health care, Descendants, Avoidance-social isolation. Data from relatives were divided into three sets: discrimination towards the patients witnessed by relatives, discrimination suffered by the relatives themselves and discrimination exerted by the relatives on the patients. Patients and relatives describe a great variety of stigma and discrimination experiences in all areas of life, including health care. Isolation and avoidance are common reactions to those experiences. Publicizing these stigma and discrimination experiences could help to reduce stigmatizing attitudes in society and result in healthier reactions from patients, favoring a better course of the illness.
A qualitative research of adolescents with behavioral problems about their experience in a dialectical behavior therapy skills training group
Background Several quantitative studies support the effectiveness of the Dialectical Behavior Therapy (DBT) psychosocial skills training group component for adolescents with impulse-control disorder and/or emotional dysregulation. However, qualitative research to assess this psychotherapeutic tool in the adolescent population is sparse. This study aims to examine the subjective experience of adolescents with behavioral issues who have completed DBT skills training group, as well as using this experience to extract hypotheses regarding its usefulness which can then be verified at a later time by means of quantitative instruments. Methods We developed a qualitative study by using focus groups with adolescents ( N  = 20) whose diagnosis includes symptoms such as behavior disorder, impulse-control disorder and/or emotional dysregulation, and good informants, who have completed DBT skills training. Three focus groups were created. Results The subjective experience of adolescents who have completed a DBT skills training group is collected in four main categories: experience of illness, motivation for therapy, experience of therapy and results of the therapy. Conclusions Adolescents with behavioral problems assess their participation in the DBT skills training group positively, even recommending its usefulness to healthy population. Beyond learning skills, they emphasize the intrapsychic changes (as improvement in reflective activity) that they objectify after the group experience.
Maltreatment and parenting in youth with primary and secondary callous‐unemotional traits: Anxiety matters
Background Youth with conduct disorder (CD) and high callous‐unemotional (CU) traits are not a homogenous group and can be disaggregated into primary and secondary subgroups. However, there are inconsistencies in defining primary and secondary subgroups, with some studies using anxiety, others using maltreatment and still others using both features to identify subgroups. There is a paucity of work comparing primary and secondary subgroups with typically developing (TD) youth on experiences of maltreatment and parenting as well as a lack of studies investigating sex differences. Methods In a large sample of TD youth (n = 946, 66% female) and youth with CD (n = 885, 60% female), we used latent profile analysis in youth with CD aged between 9 and 18 years to address four aims: (i) to demonstrate how primary and secondary subgroup membership differs when anxiety, maltreatment, or both are used as continuous indicators, (ii) to compare primary and secondary subgroups with TD youth on abuse and neglect measures, and (iii) to compare primary and secondary subgroups with TD youth on parenting experiences, and (iv) to examine whether the results were consistent across sexes. Results Anxiety without maltreatment yielded the best fitting and most theoretically interpretable classification of primary and secondary subgroups across both sexes (Bayesian information criterion = 17832.33, Entropy = 0.75, Lo‐Mendell‐Rubin: p < 0.01). Compared with TD youth, youth with primary and secondary CU traits experienced greater levels of abuse and neglect (p < 0.001, η2p = 0.04−0.16) and maladaptive parenting practices (p < 0.001, η2p = 0.04−0.13). Youth with primary and secondary CU traits were equally high on levels of abuse, neglect, and maladaptive parenting (all p values >0.05). Conclusions We provide evidence that anxiety and maltreatment cannot be used interchangeably to identify youth with primary versus secondary CU traits. Anxiey yielded the best fitting and most theoretically interpretable classifications across both sexes. Our results signify the need for researchers and clinicians to adopt a unified approach to defining primary and secondary subgroups of CU traits using anxiety in both sexes. We investigated latent classes of typically developing youth with subgroups of primary and secondary callous‐unemotional youth. Sex differences were also explored. The groups were then compared on maltreatment histories (abuse and neglect) and experiences of parenting.
The experience of parents faced with the admission of their adolescent to a child and adolescent psychiatric inpatient unit. A qualitative study with focus groups
The admission of an adolescent to a child and adolescent psychiatric inpatient unit has a serious impact on the entire family unit. The emotional experience of those primary caregivers has been scarcely studied qualitatively despite being recommended by previous research. This study aims to examine the experience of parents of adolescents with mental health needs that required psychiatric hospitalization in a child and adolescent unit. Qualitative cross-sectional research was carried out under the recommendations of Grounded Theory with three Focus Groups of parents ( N  = 22) of adolescents who required psychiatric hospitalization in a child and adolescent ward. The COREQ quality criteria were applied. The parental experience implies a high level of emotional suffering modulated by feelings of guilt, stigma, parental awareness of their child’s illness and the passage of time. The use of Prochaska’s and Diclemente’s trans-theoretical model of health behavior change is useful in understanding the parental experience.