0000000000368020

AUTHOR

David R. Kolar

0000-0002-8649-5467

showing 9 related works from this author

Emotion regulation in adolescents with anorexia and bulimia nervosa: Differential use of adaptive and maladaptive strategies compared to healthy adol…

2021

Objective: Adolescents with anorexia (AN) and bulimia nervosa (BN) often struggle with emotion regulation (ER). These difficulties have predominantly been assessed across emotions, without considering adaptive and maladaptive ER separately.We compared adolescents with AN or BN to healthy adolescents (HCs) regarding the adaptive and maladaptive ER of three emotions. Methods: A treatment-seeking sample of 197 adolescents (atypical/full-threshold AN: N = 118, atypical/full-threshold BN: N = 32; HC: N = 47) reported emotion-specific ER with the FEEL-KJ questionnaire. Mixed models were calculated for adaptive and maladaptive ER to assess differences between emotions (anxiety, anger, sadness) and…

Anorexia NervosaAdolescentmedia_common.quotation_subjectEmotions610 MedizinAnorexiaAngerbehavioral disciplines and activities610 Medical sciencesmental disordersPost-hoc analysismedicineHumansBulimia Nervosamedia_commonbusiness.industryBulimia nervosamedicine.diseaseAnorexiaEmotional RegulationSadnessPsychiatry and Mental healthEating disordersAnorexia nervosa (differential diagnoses)Anxietymedicine.symptombusinessClinical psychologyInternational Journal of Eating Disorders
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A call to experimentally study acute affect-regulation mechanisms specific to driven exercise in eating disorders.

2020

Driven exercise (i.e., feeling compelled to exercise to control one's weight or shape, to obtain other positive consequences of exercising, or to avoid other negative consequences of not exercising) is a common phenomenon in individuals with eating disorders (EDs), typically associated with negative clinical outcomes. Current theoretical models of driven exercise highlight the short-term affect-regulating outcome of acute driven exercise, which is implicated to maintain this symptom either by positive or negative reinforcement. However, few studies have actually investigated cognitive, affective, and psychobiological mechanisms related to acute driven exercise. In particular, experimental s…

education.field_of_studyBulimia nervosamedia_common.quotation_subjectPopulation610 MedizinCognitionBehavioral neuroscienceAnorexia nervosamedicine.diseaseArticleAffect regulationPsychiatry and Mental healthEating disordersFeeling610 Medical sciencesmedicineeducationPsychologyClinical psychologymedia_commonThe International journal of eating disorders
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Momentary emotion identification in female adolescents with and without anorexia nervosa.

2017

Individuals with anorexia nervosa (AN) often report difficulties in identifying emotions, which have been mostly studied as an alexithymia trait. In a controlled two-day ecological momentary assessment, we studied the influence of time of day and aversive tension on self-reported momentary emotion identification. Analysis on an aggregated level revealed a significant lower mean emotion identification in the AN group. In a mixed model analysis, the AN group showed lower emotion identification than the control group (HC). Both a general and a group effect of time of day were found, indicating that emotion identification improved during the day in HC, whereas a negligible decrease of the emoti…

050103 clinical psychologyAnorexia NervosaTime FactorsAdolescentEmotionsArticleDevelopmental psychology03 medical and health sciences0302 clinical medicineAlexithymiamedicineHumans0501 psychology and cognitive sciencesClinical significanceAffective SymptomsDisordered eatingGroup levelBiological Psychiatry05 social sciencesEmotion identificationmedicine.disease030227 psychiatryPsychiatry and Mental healthAnorexia nervosa (differential diagnoses)Group effectTraitFemaleSelf ReportPsychologyPsychiatry research
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Body image avoidance affects interpersonal distance perception: A virtual environment experiment.

2019

OBJECTIVE Eating disorders have a considerable influence on social contacts. The avoidance towards the own body may result in the avoidance of others. Previous research has found a preference for larger interaction distances in individuals with eating disorders (ED) as compared to control participants (CG). We aimed to replicate these findings and to investigate whether the body weight of the interactant moderates the effect. METHOD We recruited a female sample with mixed ED subtypes (n = 21) and a female CG (n = 28). Participants were immersed in a virtual environment and engaged in a number of fictitious social interactions. They approached a virtual person until a comfortable distance fo…

Adult050103 clinical psychologyAdolescentmedia_common.quotation_subjectInterpersonal communicationDevelopmental psychologyFeeding and Eating Disorders03 medical and health sciencesYoung Adult0302 clinical medicinePerceptionmedicineBody ImageHumans0501 psychology and cognitive sciencesInterpersonal RelationsAvatarmedia_common05 social sciencesPerspective (graphical)Virtual Realitymedicine.diseasePreferenceDisgust030227 psychiatryPsychiatry and Mental healthClinical PsychologyEating disorders150 PsychologieCase-Control StudiesFemaleUnderweightmedicine.symptom150 PsychologyPsychologyEuropean eating disorders review : the journal of the Eating Disorders AssociationREFERENCES
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Cognitive reappraisal and self-compassion as emotion regulation strategies for parents during COVID-19: An online randomized controlled trial

2021

Objective Parenting during pandemic restrictions places extreme demands on everyday family life, leading to increased stress levels for parents and distressed parent-child interactions. This RCT aimed to investigate whether cognitive reappraisal and self-compassion are helpful emotion regulation (ER) strategies to reduce individual and parental stress during the COVID-19 pandemic. Method An online intervention for parents was developed focusing on the application of ER strategies to pandemic requirements of families. A sample of 265 parents were randomly assigned to either cognitive reappraisal (CR; n = 88), self-compassion (SC; n = 90) or wait-list control (WLC; n = 87) group. Intervention…

050103 clinical psychologyPsychological interventionHealth InformaticsInformation technologyAffect (psychology)law.inventionCognitive reappraisal03 medical and health sciences0302 clinical medicineRandomized controlled triallawIntervention (counseling)LockdownPsychology0501 psychology and cognitive sciences030212 general & internal medicinePandemicParentingEmotion regulation05 social sciencesT58.5-58.64Mental healthFull length ArticleFamily lifeBF1-990Stress reductionPsychologySelf-compassionClinical psychology
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Testing an emotion regulation model of physical activity in adolescents with anorexia nervosa: A pilot ecological momentary assessment.

2019

Objective Adolescents with anorexia nervosa (AN) often show increased levels of exercise and physical activity. Psychological models suggest that physical activity in AN might attenuate momentary negative affect. However, this has not been directly tested in adolescents with AN, and it remains unclear whether this is a distinct mechanism of physical activity in AN compared with healthy controls (HCs). Method In a 1-day ecological momentary assessment, 32 adolescent inpatients with AN and 30 HCs responded to hourly questions on momentary affect while wearing an actigraph to objectively assess physical activity. Results Linear mixed models identified that adolescents with AN experienced more …

AdultMaleAnorexia NervosaAdolescentEcological Momentary AssessmentPhysical activityPilot ProjectsModels PsychologicalAffect (psychology)Young AdultStatistical significancemedicineHumansAssociation (psychology)ChildExerciseMechanism (biology)Ecologymedicine.diseaseEmotional RegulationPsychiatry and Mental healthClinical PsychologyEating disordersSample size determinationAnorexia nervosa (differential diagnoses)Case-Control StudiesFemalePsychologyEuropean eating disorders review : the journal of the Eating Disorders AssociationREFERENCES
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Seasonal variation of BMI at admission in German adolescents with anorexia nervosa.

2018

Objective Recent preliminary studies indicated a seasonal association of BMI at admission to inpatient treatment for anorexia nervosa (AN), indicating lower BMI in the cold season for restrictive AN. An impaired thermoregulation was proposed as the causal factor, based on findings in animal models of AN. However, findings regarding seasonality of BMI and physical activity levels in the general population indicate lower BMI and higher physical activity in summer than in winter. Therefore, we aimed to thoroughly replicate the findings regarding seasonality of BMI at admission in patients with AN in this study. Method AN subtype, age- and gender-standardized BMI scores (BMI-SDS) at admission, …

Male050103 clinical psychologyAnorexia NervosaAdolescentPhotoperiodPopulationMedizinPhysical activitylcsh:Medicine610 Medicine & healthBody Mass Index03 medical and health sciences0302 clinical medicineGermanyMedicineHumans0501 psychology and cognitive sciencesClinical significanceRegistries610 Medicine & healtheducationlcsh:ScienceSubclinical infectioneducation.field_of_studyMultidisciplinarybusiness.industry05 social scienceslcsh:RSeasonalitymedicine.disease030227 psychiatryAnorexia nervosa (differential diagnoses)150 PsychologieSunshine durationSunlightlcsh:QFemaleSeasons150 PsychologybusinessBody mass indexDemographyPloS one
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Epidemiology of eating disorders in Latin America: a systematic review and meta-analysis.

2016

Purpose of reviewEating disorders are currently not considered to be limited to Western culture. We systematically reviewed the existing literature on the prevalence of eating disorders in Latin America.Recent findingsOf 1583 records screened, 17 studies from Argentina, Brazil, Chile, Colombia, Mexico, and Venezuela were included in the analysis. Most studies reported point-prevalence rates and only three studies provided lifetime and 12-month prevalence rates. We found a mean point-prevalence rate of 0.1% for anorexia nervosa, 1.16% for bulimia nervosa, and 3.53% for binge-eating disorder (BED) in the general population. Heterogeneity for bulimia nervosa and BED was large. This meta-analys…

ANOREXIA-NERVOSA050103 clinical psychologymedicine.medical_specialtySAMPLELatin AmericansPopulationPrevalencebinge-eating disorderUNITED-STATESbulimia nervosaETHNIC-IDENTITYbehavioral disciplines and activitiesanorexia nervosaFeeding and Eating Disorders03 medical and health sciencesBULIMIA-NERVOSA0302 clinical medicineBinge-eating disorderADOLESCENTSparasitic diseasesmental disordersEpidemiologymedicineHumans0501 psychology and cognitive sciencesPsychiatryeducationeducation.field_of_studyBulimia nervosaMORTALITY05 social sciencesFEMALE UNIVERSITY-STUDENTSmedicine.diseasePREVALENCE030227 psychiatryPsychiatry and Mental healthEating disordersLatin AmericaAnorexia nervosa (differential diagnoses)RISK-FACTORSepidemiologyPsychologyCurrent opinion in psychiatry
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The spanish body image state scale: factor structure, reliability and validity in a colombian population

2019

ObjectiveBody image is a construct highly dependent on culture and ethnicity. Furthermore, recent studies reveal that body image is not only a trait, but also a momentary state subject to change in diverse situational contexts. However, cultural influences on momentary body image have not been sufficiently investigated. To assess the influence of Latin American culture on momentary body image and to enable its comparison to Western countries, the Spanish translation of an existing state body image scale such as the Body Image States Scale (BISS) is needed. In addition, the factor structure, reliability and general validity of the Spanish BISS (S-BISS) should be evaluated prior to its applic…

body imagelcsh:BF1-990factor analysiseating disorders050105 experimental psychology03 medical and health sciences0302 clinical medicinecaribbean populationmedicinePsychology0501 psychology and cognitive sciencesSituational ethicsGeneral PsychologyReliability (statistics)Original Researchreliability05 social sciencesDiscriminant validityCaribbean populationmedicine.diseaseReliabilityEating disorderslcsh:PsychologyBody imageTest scoreScale (social sciences)TraitEating disordersFactor analysisPsychology030217 neurology & neurosurgeryPsychopathologyClinical psychology
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