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1.
Internet Interv ; 34: 100691, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38034862

RESUMEN

A network perspective may shed light on the understanding of Internet-based CBT efficacy for social anxiety disorder. Previous cross-sectional evidence revealed a densely interconnected network for individuals with social anxiety. Yet, longitudinal network changes before and after ICBT are lacking. This study aimed to investigate pathological network changes with Graphical Gaussian Model among patients with social anxiety disorder (n = 249). Social phobia scale (SPS) and Social interaction anxiety scale (SIAS) were measured before and after 8 weeks Internet-based CBT. Results revealed the connection between symptom tension when speaking and symptom awkward when being watched was the most robust edges during ICBT interventions. The pathological network benefited from ICBT and exhibited modification in several prominent interconnections. The overall network connectivity continues to exhibit comparable strength after ICBT. This study represents the first examination of social anxiety network changes after patients with SAD completed a systematic ICBT. Changes in critical edges and nodes provide valuable insights for the design and efficacy assessment of ICBT interventions.

2.
Clin Psychol Psychother ; 30(5): 1013-1019, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37056167

RESUMEN

INTRODUCTION: The corona pandemic has been a life event causing negative consequences on mental health. Mental health consists of positive and negative dimensions. The present longitudinal study investigated how positive and negative dimensions changed over 15 months after the Covid-19 outbreak. Potential changes of excessive social media use (SMU) and its relationship with mental health were also investigated. METHOD: Data (N = 189) on distress (measured overall and as depression, anxiety, and stress), well-being and excessive SMU were collected at three time points (baseline, BL; 3-month follow-up, FU1; 15-month follow-up, FU2) via online surveys in Italy. Repeated analyses of variance were used to test differences among the three measurement time points. Mediational models were applied. RESULTS: Distress did not change over time, well-being decreased and excessive SMU increased significantly. The relationship between distress at BL and excessive SMU at FU2 was significant (total effect, c: p < .001). The relationship between distress at BL and well-being at FU1 (a: p < .001), and between well-being at FU1and excessive SMU at FU2 (b: p = .004) was significant. Including FU1 well-being in the model, the relationship between distress at BL and excessive SMU at FU2 was not significant (direct effect, c': p = .078). The indirect effect (ab) was significant. CONCLUSION: Well-being mediated the relationship between baseline stress and excessive SMU. Enhanced stress may reduce well-being which, in turn, increases the risk of excessive SMU. This emphasizes the urgency of programmes that foster well-being, especially during stressful events such as a pandemic.


Asunto(s)
COVID-19 , Distrés Psicológico , Medios de Comunicación Sociales , Humanos , Estudios Longitudinales , Brotes de Enfermedades
3.
J Psychopharmacol ; 35(3): 253-264, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33570017

RESUMEN

BACKGROUND: The optimisation of learning has long been a focus of scientific research, particularly in relation to improving psychological treatment and recovery of brain function. Previously, partial N-methyl-D-aspartate agonists have been shown to augment reward learning, procedural learning and psychological therapy, but many studies also report no impact of these compounds on the same processes. AIMS: Here we investigate whether administration of an N-methyl-D-aspartate partial agonist (D-cycloserine) modulates a previously unexplored process - tactile perceptual learning. Further, we use a longitudinal design to investigate whether N-methyl-D-aspartate-related learning effects vary with time, thereby providing a potentially simple explanation for apparent mixed effects in previous research. METHODS: Thirty-four volunteers were randomised to receive one dose of 250 mg D-cycloserine or placebo 2 h before tactile sensitivity training. Tactile perception was measured using psychophysical methods before and after training, and 24/48 h later. RESULTS: The placebo group showed immediate within-day tactile perception gains, but no further improvements between-days. In contrast, tactile perception remained at baseline on day one in the D-cycloserine group (no within-day learning), but showed significant overnight gains on day two. Both groups were equivalent in tactile perception by the final testing - indicating N-methyl-D-aspartate effects changed the timing, but not the overall amount of tactile learning. CONCLUSIONS: In sum, we provide first evidence for modulation of perceptual learning by administration of a partial N-methyl-D-aspartate agonist. Resolving how the effects of such compounds become apparent over time will assist the optimisation of testing schedules, and may help resolve discrepancies across the learning and cognition domains.


Asunto(s)
Cicloserina/farmacología , Aprendizaje/efectos de los fármacos , Receptores de N-Metil-D-Aspartato/agonistas , Adolescente , Adulto , Cognición/efectos de los fármacos , Método Doble Ciego , Agonismo Parcial de Drogas , Femenino , Humanos , Estudios Longitudinales , Masculino , Receptores de N-Metil-D-Aspartato/metabolismo , Factores de Tiempo , Percepción del Tacto/efectos de los fármacos , Adulto Joven
4.
SSM Popul Health ; 7: 100392, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30989104

RESUMEN

Prevalence rates for mental health problems are higher when an individual's socioeconomic status (SES) is low, but the underlying mechanisms are not clearly understood. We investigated associations between education as indicator for SES and depressive symptoms as well as positive mental health (PMH). Moreover, we hypothesized that low education is associated with a lack of psychosocial resources and more daily hassles, which in turn mediate the relationships between education and mental health. In a German representative sample (N = 7937), we cross-sectionally first examined whether a person's educational level was associated with depressive symptoms and PMH. Educational level was defined as the highest academic qualification achieved. Second, we investigated whether also sense of control, resilience, delay of gratification, cultural activity and daily hassles followed gradients along the educational level. Third, we investigated whether they mediated the relationship between education and mental health. Results showed that depressive symptoms measured by items from the DASS-42 depression subscale were more prevalent for persons with a low educational level, PMH operationalized by the Positive Mental Health Scale was equally distributed, and all psychosocial characteristics followed the gradient of educational level. In addition, the group with a high school diploma was particularly burdened. Structural equation modeling indicated that the associations between education and mental health were mediated by all psychosocial characteristics and daily hassles, apart from the delay of gratification. In the group with the lowest educational level the model fit indices for depressive symptoms and PMH were acceptable (χ2 = 10007.243 (627), CFI = 0.869, RMSEA = 0.04 (90% CI [0.04, 0.04], SRMR = 0.05; and χ2 = 12779.968 (741), CFI = 0.86, RMSEA = 0.05 (90% CI [0.05, 0.05], SRMR = 0.05), respectively). The effect size Pm refers to the proportion of the total effect that is mediated by one or more variables ("M"), and the effect size of all indirect effects in the model for depressive symptoms was Pm = .80 and for PMH it was Pm = .68. The results support our hypotheses that low education is associated with less psychosocial resources, which in turn serve together with daily hassles as pathways between education and depressive symptoms as well as PMH. Building on these findings, longitudinal studies are necessary to investigate causality.

5.
Int J Psychol ; 53(5): 339-348, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27709607

RESUMEN

This study examined the circular structure of values in China. The circular structure is a central element of Schwartz value theory and visualises the idea that some values are similar while others conflict with one another. Whereas numerous studies addressed the question whether the circular structure of values can be generalised cross-culturally, results for China are inconclusive. In this paper, we argue that taking a closer look at China provides a challenge to the circular structure and allows for drawing conclusions regarding the limits versus generalizability of Schwartz' theory. For this purpose, we first conduct a re-analysis of Chinese data from a former meta-analysis (Study 1) and second, present results from a large study of 10,652 Chinese college students (Study 2). Results of Study 1 revealed that graphical representation of the circular structure matched theoretical expectations but five out of six samples showed relatively bad fit to the theorised structure. By contrast, data in Study 2 showed a good model fit. As an overall conclusion, the circular structure is well supported in the Chinese context, and small sample sizes in previous studies might have caused the imperfect match to the prototypical circular structure.


Asunto(s)
Valores Sociales/etnología , China , Femenino , Humanos , Masculino , Estudiantes , Encuestas y Cuestionarios
6.
Behav Res Ther ; 47(7): 628-35, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-19446793

RESUMEN

This waitlist-controlled study evaluated the efficacy of a short version of a group CBT for BED followed by booster sessions after the active treatment phase. Thirty-six females with BED were randomly assigned to CBT (eight weekly sessions during active treatment plus five booster sessions during follow-up) or a waitlist condition. At the end of the active treatment, binge eating was significantly reduced relative to waitlist. Furthermore, at 12-month follow-up short-term CBT produced significant improvements in binge eating symptoms relative to baseline. Findings suggest that the short-term CBT followed by booster sessions may provide a valuable treatment option for patients with BED.


Asunto(s)
Trastorno por Atracón/terapia , Terapia Cognitivo-Conductual/métodos , Adulto , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Cooperación del Paciente , Psicoterapia Breve/métodos , Resultado del Tratamiento
7.
Int J Eat Disord ; 42(7): 648-57, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19197978

RESUMEN

OBJECTIVE: Cognitive-behavioral treatment (CBT) for binge eating disorder (BED) is traditionally evaluated using clinical interviews and questionnaires. These retrospective assessment methods are discussed to be problematic due to memory recall error. Ecological momentary assessment (EMA) might be promising for gathering ecologically valid and reliable data. METHOD: We assessed the feasibility of and reactivity to EMA and compared the treatment efficacy measured by traditional vs. EMA-based instruments in 28 BED individuals participating in short-term CBT. RESULTS: Patients were highly compliant and we found no reactivity to EMA. Estimated treatment effects for binge eating based on EMA were comparable to questionnaire-based methods. The overall concordance between methods was moderate. DISCUSSION: Results suggest that binge eating over 1 week can be equally accurately assessed by EMA or by self-report questionnaires in BED treatment trials. EMA contributes to a detailed knowledge of binge eating in daily live and helps to advance treatment options.


Asunto(s)
Trastorno por Atracón/terapia , Terapia Cognitivo-Conductual , Índice de Masa Corporal , Terapia Cognitivo-Conductual/normas , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Cooperación del Paciente , Encuestas y Cuestionarios , Resultado del Tratamiento
8.
Int J Eat Disord ; 42(2): 130-8, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18951454

RESUMEN

OBJECTIVE: In this randomized controlled study, a standardized motivation intervention was compared with a relaxation intervention with regard to its effectiveness in decreasing dropout rates and increasing physical activity in a sample of obese patients. METHOD: Thirty-eight obese participants were randomly assigned to a one-session motivation or relaxation intervention. Thereafter, both groups participated in an 8-week aerobic program. Adherence, physical activity, motivational stage of change, and body mass index (BMI) were assessed during intervention and at 3- and 6-month follow-ups. RESULTS: During the aerobic program, the motivation group showed significantly fewer dropouts but comparable adherence if only completers were considered. Moreover, their weekly minutes of physical activity increased over time before leveling off, whereas steady decreases were observed in the relaxation group. For motivational stage of change and BMI, no significant group differences were observed. DISCUSSION: The importance and efficacy of motivational interventions in enhancing the high dropout rates in obesity treatment is underlined.


Asunto(s)
Motivación , Actividad Motora , Obesidad/psicología , Adolescente , Adulto , Anciano , Ejercicio Físico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad/prevención & control , Terapia por Relajación , Adulto Joven
9.
Int J Pediatr Obes ; 2(2): 97-103, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17763016

RESUMEN

Overweight children show abnormalities in eating style, such as restrained eating and tendency toward overeating (comprising both emotional and external eating). Family surroundings play a major role in developing eating behaviors in children. We tested whether restrained eating and tendency toward overeating predicted the amount of food intake in 41 overweight children (23 girls and 18 boys) and their parents (40 mothers and 11 fathers) after receiving a preload. We further investigated with questionnaires whether there were associations between the parents' and their children's eating behavior and whether mothers' food intake predicted the amount of food consumed by children in an experimental trial. We found that neither children with restrained eating nor their mothers ate more after a preload, but children with a high tendency toward overeating ate somewhat more after receiving a preload. Further analyses showed that children's food intake in the preload paradigm was predicted by mothers' food intake. Our findings point to a familial transmission of eating styles: children eat as their primary caregivers do, even when the caregivers are not present in the laboratory.


Asunto(s)
Regulación del Apetito , Conducta Alimentaria/psicología , Sobrepeso , Relaciones Padres-Hijo , Niño , Femenino , Encuestas Epidemiológicas , Humanos , Hiperfagia/psicología , Entrevistas como Asunto , Masculino
10.
Int J Eat Disord ; 40(2): 102-13, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17089420

RESUMEN

OBJECTIVES: The aim of this study was to determine the efficacy of cognitive-behavioral therapy (CBT) and behavioral weight loss treatment (BWLT) for overweight patients with binge eating disorder (BED). METHOD: Eighty obese patients meeting criteria of BED according to DSM-IV-TR were randomly assigned to either CBT or BWLT consisting of 16 weekly treatments and 6 monthly follow-up sessions. Binge eating, general psychopathology, and body mass index (BMI) were assessed before, during, and after treatment, and at 12-month follow-up. RESULTS: At posttreatment results favored CBT as the more effective treatment. Analysis of the course of treatments pointed to a faster improvement of binge eating in CBT based on the number of self-reported weekly binges, but faster reduction of BMI in BWLT. At 12-month follow-up, no substantial differences between the two treatment conditions existed. CONCLUSION: CBT was somewhat more efficacious than BWLT in treating binge eating but this superior effect was barely maintained in the long term. Further research into cost effectiveness is needed to assess which treatment should be considered the treatment of choice.


Asunto(s)
Terapia Conductista , Bulimia Nerviosa/terapia , Terapia Cognitivo-Conductual , Obesidad/terapia , Sobrepeso , Pérdida de Peso , Adulto , Índice de Masa Corporal , Bulimia Nerviosa/psicología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Obesidad/psicología , Cooperación del Paciente/psicología , Psicopatología , Autoeficacia , Suiza
11.
Behav Res Ther ; 40(1): 57-66, 2002 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-11762427

RESUMEN

The paradoxical effects of intended thought suppression have been linked to psychological disorders, specifically anxiety disorders. So far, the evidence for thought suppression playing a major role in the disorder is mixed. One important issue is whether thought suppression is impaired only for thoughts related to the disorder, or if the ability for mental control is generally impaired in anxiety patients. This study compared groups of agoraphobics and social phobics with a healthy control group. All subjects were asked to suppress two topics related to the respective central fear of the two disorders and one nonspecific topic. We found a rather specific deficit in thought suppression for the agoraphobics; that is, when compared with the control group, we found the biggest differences for the agoraphobic fear. The social phobics seem to be characterized by a general impairment of mental control, affecting specific and nonspecific stimuli. In addition, among several psychopathological variables, social anxiety proved to be the strongest predictor for problems with thought suppression. Taken together, there are several indicators that generally impaired thought suppression may be an important feature of social phobia.


Asunto(s)
Agorafobia/psicología , Atención , Trastornos Fóbicos/psicología , Represión Psicológica , Pensamiento , Adulto , Agorafobia/diagnóstico , Femenino , Humanos , Control Interno-Externo , Masculino , Persona de Mediana Edad , Determinación de la Personalidad , Trastornos Fóbicos/terapia
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