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1.
Compr Psychiatry ; 72: 106-113, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27810546

RESUMO

OBJECTIVES: Impulsivity is a construct that is strongly associated with Gambling Disorder (GD). The main objectives in the present study are: 1) to explore the role of sex and age on impulsivity levels in GD patients; 2) to identify the relationship of the different impulsivity facets with comorbid psychopathology and other personality traits in GD patients; and (3) to assess whether impulsivity is a predictor for the severity of GD. METHOD: The final sample consisted of 406 consecutive participants. All of them were seeking treatment for GD (88.4% male and 11.6% female) and completed the South Oaks Gambling Screen (SOGS), the UPPS-P Impulsive Behavior Scale, the Symptom Checklist (SCL-90-R), the Temperament and Character Inventory-R (TCI-R) as well as other clinical and psychopathological measures. RESULTS: Results show a negative linear trend between age and lower sensation seeking levels as well as lack of premeditation (the higher the age the lower the UPPS-P scores), and a positive linear trend between age and positive urgency (UR) (the higher the age the higher the UPPS-P score). However, no sex differences were found for the assessed impulsivity dimensions. Lack of perseverance was positively associated with obsessive-compulsive symptoms and harm avoidance trait, and negatively related to persistence and self-directedness traits. Positive UR and negative UR were positively correlated with general psychopathology and the total number of DSM-IV criteria, and negatively associated to the following personality traits: self-directedness and cooperativeness. Finally, only the sensation seeking and negative UR of the UPPS-P showed predictive capacity on the severity of the disorder (the higher the impulsivity scores the higher the illness severity). CONCLUSIONS: These findings highlight the association between impulsivity traits (measured by the UPPS-P) and GD in a large and consecutively recruited clinical sample with GD, taking into account the variables sex and age.


Assuntos
Envelhecimento/psicologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Jogo de Azar/psicologia , Comportamento Impulsivo , Caracteres Sexuais , Adulto , Caráter , Feminino , Jogo de Azar/diagnóstico , Redução do Dano , Humanos , Masculino , Pessoa de Meia-Idade , Temperamento
2.
J Gambl Stud ; 32(1): 327-40, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25814276

RESUMO

The aim of the study is to assess a mediational pathway, which includes patients' sex, personality traits, age of onset of gambling disorder (GD) and gambling-related variables. The South Oaks Gambling Screen, the Symptom Checklist (SCL-90-R) and the Temperament and Character Inventory-R were administered to a large sample of 1632 outpatients attending a specialized outpatient GD unit. Sociodemographic variables were also recorded. A Structural Equation Model was adjusted to assess the pathway. Age of onset mediated between personality profile (novelty seeking and self-transcendence) and GD severity and depression symptoms (measured by SCL-90-R). Sex had a direct effect on GD onset and depression symptoms: men initiated the GD earlier and reported fewer depression symptoms. Age of onset is a mediating variable between sex, personality traits, GD severity and depression symptoms. These empirical results provide new evidence about the underlying etiological process of dysfunctional behaviors related to gambling, and may help to guide the development of more effective treatment and prevention programs aimed at high-risk groups such as young men with high levels of novelty seeking and self-transcendence.


Assuntos
Comportamento Aditivo/psicologia , Jogo de Azar/psicologia , Personalidade , Adulto , Distribuição por Idade , Idade de Início , Depressão/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Inventário de Personalidade , Fatores Sexuais , Inquéritos e Questionários , Temperamento , Adulto Jovem
3.
BMC Psychiatry ; 15: 86, 2015 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-25886577

RESUMO

BACKGROUND: Studies examining gambling preferences have identified the importance of the type of gambling practiced on distinct individual profiles. The objectives were to compare clinical, psychopathological and personality variables between two different groups of individuals with a gambling disorder (strategic and non-strategic gamblers) and to evaluate the statistical prediction capacity of these preferences with respect to the severity of the disorder. METHOD: A total sample of 2010 treatment-seeking patients with a gambling disorder participated in this stand-alone study. All were recruited from a single Pathological Gambling Unit in Spain (1709 strategic and 301 non-strategic gamblers). The design of the study was cross-sectional and data were collected at the start of treatment. Data was analysed using logistic regression for binary outcomes and analysis of variance (ANOVA) for quantitative responses. RESULTS: There were significant differences in several socio-demographic and clinical variables, as well as in personality traits (novelty seeking and cooperativeness). Multiple regression analysis showed harm avoidance and self-directedness were the main predictors of gambling severity and psychopathology, while age at assessment and age of onset of gambling behaviour were predictive of gambling severity. Strategic gambling (as opposed to non-strategic) was significantly associated with clinical outcomes, but the effect size of the relationships was small. CONCLUSIONS: It is possible to identify distinct phenotypes depending on the preference of gambling. While these phenotypes differ in relation to the severity of the gambling disorder, psychopathology and personality traits, they can be useful from a clinical and therapeutic perspective in enabling risk factors to be identified and prevention programs targeting specific individual profiles to be developed.


Assuntos
Jogo de Azar/psicologia , Personalidade , Adulto , Idade de Início , Estudos Transversais , Feminino , Jogo de Azar/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Fenótipo , Fatores de Risco , Espanha/epidemiologia
4.
Eur Addict Res ; 21(4): 169-78, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25832435

RESUMO

AIMS: The aim of this study was to evaluate posttreatment changes of individuals with a diagnosis of gambling disorder (GD) treated with group cognitive behavioral therapy (CBT), to assess the potential moderator effect of sex on CBT outcome, and to explore the best predictors of posttreatment changes, relapse, and dropout rates. METHODS: A cohort design was applied with a prospective follow-up. The sample comprised 440 patients and the CBT intervention consisted of 16 weekly outpatient group sessions and a 3-month follow-up period. RESULTS: Patients showed significant improvements in both the level of psychopathology and the severity of the gambling behavior. High self-transcendence and the involvement of the spouse or partner in the therapy predicted a higher risk of relapse. Younger age and low education predicted a higher risk of dropout. CONCLUSION: Many patients with GD can be treated with strategies to improve self-control and emotional regulation, but other techniques should be incorporated to address the individual characteristics of each patient. This is particularly important in group therapy, in which the same treatment is applied to several patients simultaneously. The involvement of a family member needs to be carefully considered since it may have a negative effect on the response to treatment if not adequately managed.


Assuntos
Terapia Cognitivo-Comportamental , Jogo de Azar/terapia , Psicoterapia de Grupo , Adolescente , Adulto , Idoso , Terapia Cognitivo-Comportamental/métodos , Feminino , Jogo de Azar/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Escalas de Graduação Psiquiátrica , Psicoterapia de Grupo/métodos , Inquéritos e Questionários , Resultado do Tratamento , Adulto Jovem
5.
Eur Eat Disord Rev ; 23(4): 251-61, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25982390

RESUMO

To update the knowledge about attentional processing of food stimuli, a systematic review of electrophysiological studies was conducted using PubMed, PsychInfo and Web of Knowledge (2000-2014). Twenty-one studies were included into a qualitative synthesis. Presentation of food and control pictures was used to analyze event-related potentials related to sensory processing and motivated attention. Results show consistent attentional bias towards food pictures compared with neutral pictures for patient and control groups. Group comparisons between individuals with abnormal-eating and healthy-eating participants were more inconsistent. Results suggest that temporal differences in the millisecond range are essential for the understanding of visual food processing. In obesity, early attention engagement to food is followed by relatice disengagement. Loss of control eating, as well as external and emotional eating, are associated with a sustained maintenance of attention towards high-caloric food. There is a lack of studies in anorexia nervosa, bulimia nervosa and binge eating disorder.


Assuntos
Anorexia Nervosa/fisiopatologia , Transtorno da Compulsão Alimentar/fisiopatologia , Bulimia Nervosa/fisiopatologia , Córtex Cerebral/fisiopatologia , Eletroencefalografia , Potenciais Evocados/fisiologia , Alimentos , Obesidade/fisiopatologia , Reconhecimento Visual de Modelos/fisiologia , Anorexia Nervosa/psicologia , Apetite/fisiologia , Nível de Alerta/fisiologia , Atenção/fisiologia , Transtorno da Compulsão Alimentar/psicologia , Bulimia Nervosa/psicologia , Emoções/fisiologia , Feminino , Humanos , Masculino , Motivação/fisiologia , Obesidade/psicologia
6.
Eur Eat Disord Rev ; 23(1): 28-33, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25331260

RESUMO

The present study investigates the association between non-suicidal self-injury (NSSI) and impulsivity in anorexia nervosa (AN) patients by means of self-report and behavioural tasks. In total, 60 female AN patients were included in the study, filled out the Barratt Impulsiveness Scale-11 (BIS-11) and performed three performance-based tasks to assess different facets of impulsivity. Overall, 30% of the AN patients engaged in at least one form of NSSI during their lifetime. AN patients with and without NSSI did not significantly differ on the BIS-11 impulsiveness scale. On the performance-based measures, few differences emerged between AN patients with and without NSSI. Patients with NSSI showed more perseverations and perseveration errors (p < .05). The associations between self-report and performance-based measures were rather low, except for the association between the BIS-11 and Wisconsin Card Sorting Task perseveration responses and errors (correlations |r| range between .32 and .42). The implications for theory and treatment of AN patients with and without NSSI will be discussed.


Assuntos
Anorexia Nervosa/psicologia , Comportamento Impulsivo , Comportamento Autodestrutivo/psicologia , Ideação Suicida , Adulto , Feminino , Humanos , Testes Neuropsicológicos/estatística & dados numéricos , Autorrelato
7.
Addict Biol ; 19(4): 722-32, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23311613

RESUMO

Neuroimaging studies have shown that chronic consumption of cannabis may result in alterations in brain morphology. Recent work focusing on the relationship between brain structure and the catechol-O-methyltransferase (COMT) gene polymorphism suggests that functional COMT variants may affect brain volume in healthy individuals and in schizophrenia patients. We measured the influence of COMT genotype on the volume of four key regions: the prefrontal cortex, neostriatum (caudate-putamen), anterior cingulate cortex and hippocampus-amygdala complex, in chronic early-onset cannabis users and healthy control subjects. We selected 29 chronic cannabis users who began using cannabis before 16 years of age and matched them to 28 healthy volunteers in terms of age, educational level and IQ. Participants were male, Caucasians aged between 18 and 30 years. All were assessed by a structured psychiatric interview (PRISM) to exclude any lifetime Axis-I disorder according to Diagnostic and Statistical Manual for Mental Disorders-Fourth Edition. COMT genotyping was performed and structural magnetic resonance imaging data was analyzed by voxel-based morphometry. The results showed that the COMT polymorphism influenced the volume of the bilateral ventral caudate nucleus in both groups, but in an opposite direction: more copies of val allele led to lesser volume in chronic cannabis users and more volume in controls. The opposite pattern was found in left amygdala. There were no effects of COMT genotype on volumes of the whole brain or the other selected regions. Our findings support recent reports of neuroanatomical changes associated with cannabis use and, for the first time, reveal that these changes may be influenced by the COMT genotype.


Assuntos
Encéfalo/efeitos dos fármacos , Encéfalo/fisiopatologia , Catecol O-Metiltransferase/genética , Abuso de Maconha/genética , Polimorfismo de Nucleotídeo Único/genética , Adolescente , Adulto , Substituição de Aminoácidos/genética , Mapeamento Encefálico/métodos , Predisposição Genética para Doença/genética , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Metionina , Tamanho do Órgão/efeitos dos fármacos , Valina , Adulto Jovem
8.
Eur Eat Disord Rev ; 22(6): 389-96, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25139680

RESUMO

Although the concept of 'food addiction' (FA) has raised growing interest because of evidence for similarities between substance dependence and excessive food intake, there is a lack of studies that explore this construct among the wide spectrum of eating disorders (EDs). Besides providing validation scores of a Spanish version of the Yale FA Scale (YFAS-S), this study examined the prevalence of 'FA' among ED subtypes compared with healthy-eating controls (HCs) and the association between 'FA' scores, eating symptomatology and general psychopathology. A sample of 125 adult women with ED, diagnosed according to Diagnostic and Statistical Manual of Mental Disorders 5 criteria, and 82 healthy-eating women participated in the study. All participants were assessed with the YFAS-S, the ED Inventory-2 and the Symptom Checklist-Revised. Results showed that the internal structure of the one-dimensional solution for the YFAS-S was very good (α = 0.95). The YFAS-S has a good discriminative capacity to differentiate between ED and controls (specificity = 97.6% and sensitivity (Se) = 72.8%; area under receiver operating characteristic curve = 0.90) and a good Se to screen for specific ED subtypes. YFAS-S scores were associated with higher levels of negative affect and depression, higher general psychopathology, more severe eating pathology and greater body mass index. When comparing the prevalence of 'FA' between ED subtypes, the lowest prevalence of 'FA', measured with the YFAS-S, was for the anorexia nervosa (AN) restrictive subtype with 50%, and the highest was for the AN binge-purging subtype (85.7%), followed by bulimia nervosa (81.5%) and binge eating disorder (76.9%). In conclusion, higher YFAS-S scores are associated with bingeing ED-subtype patients and with more eating severity and psychopathology. Although the 'FA' construct is able to differentiate between ED and HC, it needs to be further explored.


Assuntos
Comportamento Aditivo/diagnóstico , Comportamento Alimentar/psicologia , Transtornos da Alimentação e da Ingestão de Alimentos/classificação , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Alimentos , Inquéritos e Questionários/normas , Adulto , Anorexia Nervosa/epidemiologia , Comportamento Aditivo/psicologia , Transtorno da Compulsão Alimentar/diagnóstico , Transtorno da Compulsão Alimentar/epidemiologia , Transtorno da Compulsão Alimentar/psicologia , Índice de Massa Corporal , Bulimia Nervosa/diagnóstico , Bulimia Nervosa/epidemiologia , Bulimia Nervosa/psicologia , Depressão/diagnóstico , Depressão/epidemiologia , Depressão/psicologia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Humanos , Prevalência , Escalas de Graduação Psiquiátrica , Psicometria , Reprodutibilidade dos Testes , Espanha/epidemiologia , População Branca/psicologia , População Branca/estatística & dados numéricos
9.
Compr Psychiatry ; 54(7): 1053-60, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23759149

RESUMO

OBJECTIVE: Pathological gambling (PG) and eating disorders (ED) rarely co-occur. We explored the prevalence of lifetime PG in ED, compared severity of ED symptoms, personality traits, and psychopathological profiles across individuals with ED and PG (ED+PG) and without PG (ED-PG). Finally, we assessed the incremental predictive value of gender on the presentation of a comorbid PG. METHOD: A total sample of 1681 consecutively admitted ED patients (1576 females and 105 males), participated in the current study (25 ED+PG and 1656 ED-PG). All participants were diagnosed according to DSM-IV criteria. Assessment measures included the Symptom Checklist and the Temperament and Character Inventory-Revised, as well as other clinical and psychopathological indices. RESULTS: The observed lifetime prevalence of PG was 1.49%. ED subtype was associated with lifetime PG (p=.003), with PG being more frequent in binge eating disorder (5.7%). ED+PG was more prevalent in males than in females (16% vs. 1.26%, respectively). Additionally, ED+PG patients exhibited more impulsive behaviours, lower impulse regulation and higher novelty seeking. Best predictors of ED+PG were novelty seeking (OR 1.030, p=.035), sex (OR 3.295, p=.048) and BMI (OR 1.081, p=.005). CONCLUSIONS: Some personality traits (novelty seeking), being male and higher BMI are strongly related to the presence of lifetime PG in specific ED subtypes (namely binge eating disorder).


Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia , Jogo de Azar/epidemiologia , Comportamento Impulsivo/epidemiologia , Personalidade , Adulto , Comorbidade , Transtornos da Alimentação e da Ingestão de Alimentos/diagnóstico , Feminino , Jogo de Azar/diagnóstico , Humanos , Comportamento Impulsivo/diagnóstico , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Prevalência , Escalas de Graduação Psiquiátrica , Índice de Gravidade de Doença
10.
Compr Psychiatry ; 54(8): 1153-60, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23845156

RESUMO

OBJECTIVE: The aim of this study is to explore empirical clusters within the population of young Spanish individuals attending outpatient pathological gambling treatment. METHOD: The South Oaks Gambling Screen (SOGS), the Symptom Checklist (SCL-90-R), the Temperament and Character Inventory-R (TCI-R) and other clinical and psychopathological measures were administered to 154 patients (between 17 and 25 years old). The two-step cluster analysis explored the presence of empirical heterogeneous groups based on clinical and socio-demographic characteristics. RESULTS: Three clusters of young pathological gambling patients emerged. Type I showed less psychopathology and more functional personality traits. Type II showed a profile characterized by major emotional distress, shame, immaturity, hostility and negative feelings. Type III showed the most severe psychopathological profile and most psychopathological disturbances and schizotypal traits. CONCLUSIONS: These results suggest that three distinct endophenotypes exist, and that environmental factors have a stronger influence in the first, while in the second and third, individual factors related to deficits of emotional regulation stand out.


Assuntos
Jogo de Azar/classificação , Adolescente , Adulto , Análise por Conglomerados , Endofenótipos , Feminino , Jogo de Azar/epidemiologia , Jogo de Azar/psicologia , Humanos , Masculino , Escalas de Graduação Psiquiátrica , Espanha/epidemiologia , Adulto Jovem
11.
Eur Eat Disord Rev ; 21(6): 493-9, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24092598

RESUMO

Although standard psychological treatments have been successful in treating several core features in eating disorders (ED), other characteristics such as emotional regulation or impulsivity appear to be more resistant to change. There is a growing body of evidence to support the efficacy of cognitive remediation for cognitive and emotional difficulties in ED. Playmancer/ Islands is a video game (VG) designed to specifically treat mental disorders, characterized by problems in impulse control. The objective of the game is to increase self-control over emotions, decision making and behaviours. The aim of this study is to describe the results from a consecutive series of nine bulimia nervosa patients who were treated with the VG in addition to cognitive behaviour therapy (CBT). The outcomes included clinical and psychopathological questionnaires, and physiological measures were obtained during the VG. Emotional regulation improved, heart rate variability increased, and respiratory rate and impulsivity measures reduced after the treatment. These findings suggest that VG training may enhance treatment for ED.


Assuntos
Bulimia Nervosa/terapia , Emoções , Comportamento Impulsivo/terapia , Jogos de Vídeo , Adulto , Bulimia Nervosa/psicologia , Terapia Cognitivo-Comportamental/métodos , Feminino , Humanos , Comportamento Impulsivo/psicologia , Escalas de Graduação Psiquiátrica , Resultado do Tratamento , Jogos de Vídeo/psicologia
12.
Compr Psychiatry ; 52(4): 413-9, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21683177

RESUMO

BACKGROUND: Prevalence and clinical correlates of depersonalization symptoms have been associated with panic disorder. Personality traits might increase the likelihood of experiencing depersonalization symptoms or depersonalization disorder in panic patients. AIMS: The objectives of this study are to establish the prevalence of depersonalization symptoms during the panic attack and in depersonalization disorder and to examine the personality factors associated with the presence of depersonalization in patients with panic disorder. METHODS: The sample comprised 104 consecutive adult outpatients with panic disorder, diagnosed according to the Semistructured Clinical Interview for DSM-IV (Axis I/II disorders). Participants were assessed with the Cambridge Depersonalization Scales, the Temperament and Character Inventory, and the Panic and Agoraphobia Scale. RESULTS: Forty-eight percent of the sample had depersonalization symptoms during the panic attack, whereas 20% of patients had a depersonalization disorder. Women presented more depersonalization disorders than did men (P = .036). Patients with panic disorder with depersonalization disorder had a more severe panic disorder (P = .002). Logistic regression analysis showed that self-transcendence trait (odds ratio, 1.089; 95% confidence interval, 1.021-1.162; P = .010) and severity of panic (odds ratio, 1.056; 95% confidence interval, 1.005-1.110; P = .032) were independently associated with depersonalization disorder. CONCLUSIONS: A high prevalence of depersonalization symptoms and depersonalization disorder was confirmed in patients with panic disorder, supporting a dosage effect model for understanding depersonalization pathology. Self-transcendence trait and severity of panic disorder were reported as risk factors for depersonalization disorder.


Assuntos
Despersonalização/epidemiologia , Transtorno de Pânico/epidemiologia , Personalidade , Adulto , Comorbidade , Despersonalização/diagnóstico , Despersonalização/psicologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais/psicologia , Transtorno de Pânico/psicologia , Prevalência , Fatores de Risco , Índice de Gravidade de Doença
13.
Int J Geriatr Psychiatry ; 23(10): 1007-13, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18416452

RESUMO

OBJECTIVE: The aims of the study are twofold: (1) to compare semantic fluency, clustering and switching performance among subjects with memory complaints, patients with Alzheimer Disease (AD), and healthy controls; and (2) to examine the clinical utility of the clustering/switching scoring system in the prediction of incident AD in subjects with memory complaints. METHODS: A semantic fluency task was used to compare thirty eight subjects with memory complaints, forty two AD patients and twenty five healthy controls on the total number of words generated, clustering and switching performance. Subjects with memory complaints were followed-up for a maximum period of two years and re-evaluated. They remained in the memory complaints group (twenty eight subjects) or were defined as probable AD (ten subjects). RESULTS: AD patients generated fewer correct words (p < 0.001) and showed a reduction in clustering (p = 0.008) and switching (p < 0.001). Subjects with memory complaints showed a significant reduction in correct words (p < 0.001) and clustering performance (p = 0.008) compare to controls. In the first evaluation, the subgroup of patients who converted to AD at follow up produced less correct words (p < 0.01) and smaller clusters (p = 0.007) than the subgroup who did not become demented. There were no differences in switching between these two subgroups. AD development was better predicted by cluster size than by the total number of words generated or by switching. CONCLUSIONS: Subjects with memory complaints and AD patients have an alteration in both qualitative and quantitative aspects of semantic fluency. A clustering analysis could enhance the reliability of early AD diagnosis.


Assuntos
Doença de Alzheimer/diagnóstico , Semântica , Comportamento Verbal , Idoso , Doença de Alzheimer/psicologia , Análise de Variância , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Estudos Longitudinais , Masculino , Transtornos da Memória/psicologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Sensibilidade e Especificidade , Medida da Produção da Fala
14.
J Behav Addict ; 6(3): 396-405, 2017 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-28838248

RESUMO

Background and aims The main aim of this study was to analyze and describe the clinical characteristics and shared personality traits in different impulsivity-compulsivity spectrum disorders: substance use disorders (SUD), gambling disorder (GD), and bulimia nervosa (BN). The specific aims were to compare personality differences among individuals with pure SUD, BN with and without SUD, and GD with and without SUD. In addition, we assessed the differential predictive capacity of clinical and personality variables in relation to diagnostic subtype. Methods The sample comprised 998 subjects diagnosed according to DSM-IV-TR criteria: 101 patients were diagnosed with SUD, 482 with GD, 359 with BN, 11 with GD + SUD, and 45 patients with BN + SUD. Various assessment instruments were administered, as well as other clinical measures, to evaluate their predictive capacity. Results Marked differences in personality traits were observed between groups. Novelty seeking, harm avoidance, self-directedness, cooperation, and self-transcendence best differentiated the groups. Notably, novelty seeking was significantly higher in the two dual pathology subgroups. Patients with dual pathology showed the most dysfunctional personality profiles. Discussion and conclusion Our results indicate the existence of shared dysfunctional personality traits among the groups studied, especially in novelty seeking and self-directedness.


Assuntos
Bulimia Nervosa/psicologia , Jogo de Azar/psicologia , Comportamento Impulsivo , Personalidade , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto , Análise de Variância , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes de Personalidade , Escalas de Graduação Psiquiátrica , Análise de Regressão
15.
Front Psychol ; 7: 1244, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27597836

RESUMO

OBJECTIVE: The aim of this study was to examine the implication of personality, impulsivity, and emotion regulation difficulties in patients with a bulimic-spectrum disorder (BSD) and suicide attempts (SA), BSD patients with non-suicidal self-injury (NSSI), and BSD patients without these behaviors. METHOD: One hundred and twenty-two female adult BSD patients were assessed using self-report questionnaires. Patients were clustered post-hoc into three groups depending on whether they presented BSD without NSSI or SA (BSD), BSD with lifetime NSSI (BSD + NSSI) or BSD with lifetime SA (BSD + SA). RESULTS: The BSD + NSSI and BSD + SA groups presented more emotion regulation difficulties, more eating and general psychopathology, and increased reward dependence in comparison with the BSD group. In addition, BSD + SA patients specifically showed problems with impulse control, while also presenting higher impulsivity than both the BSD and BSD + NSSI groups. No differences in impulsivity between the BSD and BSD + NSSI groups were found. CONCLUSIONS: The results show that BSD + NSSI and BSD + SA share a common profile characterized by difficulties in emotion regulation and low reward dependence, but differ in impulsivity and cooperativeness. This suggests that self-injury, in patients without a history of suicide attempts (i.e., BSD + NSSI), may have a regulatory role rather than being due to impulsivity.

16.
PLoS One ; 11(2): e0148734, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26849214

RESUMO

The endocannabinoid (eCB) system can promote food intake by increasing odor detection in mice. The eCB system is over-active in human obesity. Our aim is to measure circulating eCB concentrations and olfactory capacity in a human sample that includes people with obesity and explore the possible interaction between olfaction, obesity and the eCB system. The study sample was made up of 161 females with five groups of body mass index sub-categories ranging from under-weight to morbidly obese. We assessed olfactory capacity with the "Sniffin´Sticks" test, which measures olfactory threshold-discrimination-identification (TDI) capacity. We measured plasma concentrations of the eCBs 2-arachidonoylglycerol (2-AG) and N-arachidonoylethanolamine or anandamide (AEA), and several eCB-related compounds, 2-acylglycerols and N-acylethanolamines. 2-AG and other 2-acylglycerols fasting plasma circulating plasma concentrations were higher in obese and morbidly obese subjects. AEA and other N-acylethanolamine circulating concentrations were lower in under-weight subjects. Olfactory TDI scores were lower in obese and morbidly obese subjects. Lower TDI scores were independently associated with higher 2-AG fasting plasma circulating concentrations, higher %body fat, and higher body mass index, after controlling for age, smoking, menstruation, and use of contraceptives. Our results show that obese subjects have a lower olfactory capacity than non-obese ones and that elevated fasting plasma circulating 2-AG concentrations in obesity are linked to a lower olfactory capacity. In agreement with previous studies we show that eCBs AEA and 2-AG, and their respective congeners have a distinct profile in relation to body mass index. The present report is the first study in humans in which olfactory capacity and circulating eCB concentrations have been measured in the same subjects.


Assuntos
Ácidos Araquidônicos/sangue , Índice de Massa Corporal , Ingestão de Alimentos , Endocanabinoides/sangue , Glicerídeos/sangue , Obesidade Mórbida/sangue , Obesidade Mórbida/fisiopatologia , Percepção Olfatória , Adolescente , Adulto , Idoso , Animais , Feminino , Humanos , Camundongos , Pessoa de Meia-Idade
17.
PLoS One ; 11(9): e0163901, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27690367

RESUMO

INTRODUCTION: Addictions are associated with decision making impairments. The present study explores decision making in Substance use disorder (SUD), Gambling disorder (GD) and Obesity (OB) when assessed by Iowa Gambling Task (IGT) and compares them with healthy controls (HC). METHODS: For the aims of this study, 591 participants (194 HC, 178 GD, 113 OB, 106 SUD) were assessed according to DSM criteria, completed a sociodemographic interview and conducted the IGT. RESULTS: SUD, GD and OB present impaired decision making when compared to the HC in the overall task and task learning, however no differences are found for the overall performance in the IGT among the clinical groups. Results also reveal some specific learning across the task patterns within the clinical groups: OB maintains negative scores until the third set where learning starts but with a less extend to HC, SUD presents an early learning followed by a progressive although slow improvement and GD presents more random choices with no learning. CONCLUSIONS: Decision making impairments are present in the studied clinical samples and they display individual differences in the task learning. Results can help understanding the underlying mechanisms of OB and addiction behaviors as well as improve current clinical treatments.

18.
Endocrine ; 51(2): 256-67, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26198367

RESUMO

(1) The objective of this study is to analyze differences in smell-taste capacity between females in extreme weight/eating conditions (EWC) and (2) to explore the interaction between smell/taste capacity, gastric hormones, eating behavior and body mass index (BMI). The sample comprised 239 females in EWC [64 Anorexia nervosa (AN) and 80 age-matched healthy-weight controls, and 59 obese and 36 age-matched healthy-weight controls]. Smell and taste assessments were performed through "Sniffin' Sticks" and "Taste Strips," respectively. The assessment measures included the eating disorders inventory-2, the symptom check list 90-revised, and The Dutch Eating Behavior Questionnaire, as well as peptides from the gastrointestinal tract [Ghrelin, peptide YY, cholecystokinin]. Smell capacity was differentially associated across EWC groups. Smell was clearly impaired in obese participants and increased in AN (hyposmia in Obesity was 54.3 and 6.4 % in AN), but taste capacity did not vary across EWC. Ghrelin levels were significantly decreased in obese subjects and were related to smell impairment. EWC individuals showed a distinct smell profile and circulating ghrelin levels compared to controls. Smell capacity and ghrelin may act as moderators of emotional eating and BMI.


Assuntos
Anorexia Nervosa/fisiopatologia , Obesidade/fisiopatologia , Transtornos do Olfato/diagnóstico , Olfato/fisiologia , Distúrbios do Paladar/diagnóstico , Paladar/fisiologia , Adolescente , Adulto , Anorexia Nervosa/sangue , Anorexia Nervosa/complicações , Peso Corporal/fisiologia , Colecistocinina/sangue , Comportamento Alimentar/fisiologia , Feminino , Grelina/sangue , Humanos , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/complicações , Transtornos do Olfato/sangue , Transtornos do Olfato/complicações , Transtornos do Olfato/fisiopatologia , Peptídeo YY/sangue , Distúrbios do Paladar/sangue , Distúrbios do Paladar/complicações , Distúrbios do Paladar/fisiopatologia , Adulto Jovem
19.
Front Psychol ; 6: 982, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26236261

RESUMO

BACKGROUND: Several studies have highlighted the implications of impulsivity and novelty seeking for both the maintenance and the process of recovery from bulimia nervosa (BN). Cognitive behavioral therapy (CBT) is the treatment of choice for BN, but for some cases, this treatment alone might not be sufficient for reducing the high levels of impulsivity. The paper presents a case report of a patient with BN, examining the effectiveness of using a videogame (VG; Playmancer) as an additional intervention designed to address impulsivity. DESIGN: Psychometric and neuropsychological measures were collected at baseline. After this assessment, Playmancer was applied prior to CBT, following an "A-B-A-C-A" single case experimental design. Impulsivity levels were assessed with the Conner's Continuous Performance Test II (CPT-II). After the Playmancer treatment, the patient started CBT, and the levels of impulsivity were recorded again. Finally, psychometric and neuropsychological measures were collected after treatment. Weekly frequency of binges and vomiting were also recorded during the entire procedure. RESULTS: After the VG intervention, psychometric measures such as anxiety levels, impulsivity and novelty seeking decreased. Regarding the neuropsychological measures, impulsivity levels (measured with the CPT-II) progressively decreased throughout the intervention, and an improvement in decision making capacities was observed. Furthermore, the frequency of binges also decreased during and after the VG intervention. DISCUSSION: This case report suggests that using the Playmancer VG to reduce impulsivity prior to CBT may enhance the final results of the treatment for BN.

20.
PLoS One ; 10(5): e0126083, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25993565

RESUMO

In the present study, we investigated the association between Non-Suicidal Self-Injury (NSSI) and the UPPS-P impulsivity facets in eating disorder patients and healthy controls. The prevalence of NSSI in eating disorder (ED) patients ranged from 17% in restrictive anorexia nervosa (AN-R) patients to 43% in patients with bulimia nervosa (BN). In healthy controls (HC), the prevalence of NSSI was 19%. Eating disorder patients from the binge eating/purging type showed significantly more NSSI compared to restrictive ED and HC participants. Binge-eating/purging ED patients also scored significantly higher on Negative/Positive Urgency, Lack of Premeditation and Lack of Perseverance compared to HC and restrictive ED patients. Comparable findings were found between ED patients and HC with and without NSSI; ED patients and HC with NSSI scored significantly higher in four of the five UPPS-P dimensions compared to participants without NSSI; Sensation Seeking was the exception. Finally, the presence of NSSI in HC/ED patients was particularly predicted by low levels of Perseverance. Therefore, the treatment of ED patients with NSSI certainly needs to focus on the training of effortful control.


Assuntos
Anorexia Nervosa/psicologia , Transtorno da Compulsão Alimentar/psicologia , Bulimia Nervosa/psicologia , Comportamento Impulsivo , Comportamento Autodestrutivo/psicologia , Adulto , Anorexia Nervosa/complicações , Anorexia Nervosa/fisiopatologia , Transtorno da Compulsão Alimentar/complicações , Transtorno da Compulsão Alimentar/fisiopatologia , Índice de Massa Corporal , Bulimia Nervosa/complicações , Bulimia Nervosa/fisiopatologia , Estudos de Casos e Controles , Escolaridade , Emprego/psicologia , Feminino , Humanos , Estado Civil , Inventário de Personalidade , Escalas de Graduação Psiquiátrica , Autorrelato , Comportamento Autodestrutivo/complicações , Comportamento Autodestrutivo/fisiopatologia , Inquéritos e Questionários
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