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1.
Int. j. clin. health psychol. (Internet) ; 24(1): [100441], Ene-Mar, 2024. tab, ilus
Artigo em Inglês | IBECS | ID: ibc-230381

RESUMO

In the context of body image and mental health, transgender individuals face distinctive challenges stemming from the complexities of their gender identity journey, societal expectations, and body norms. However, the existing line of research on this topic remains limited. This study explores the complex relationship in transgender individuals between body objectification, body weight dissatisfaction, and eating concerns. A sample of 154 individuals (77 transgenders paired with 77 cisgenders) was recruited via LGBTQ+ groups’ mailing lists. Participants completed various questionnaires assessing body image, eating psychopathology, depression, and body objectification. Propensity score matching was performed with different variables: age, current BMI, years of education, current self-identified gender, and sexual orientation. The results revealed that transgender individuals experienced higher levels of body objectification, body weight dissatisfaction, and eating concerns compared to their cisgender counterparts. Additionally, age emerged as a protective factor, as older transgender individuals demonstrated improved body acceptance and self-esteem. Logistic regression analyzes indicated that bulimic behaviors, depressive symptoms, and appearance control beliefs were specific factors significantly associated with being transgender. Our findings highlight the unique challenges faced by transgender individuals in navigating their gender identity and body image, underscoring the importance of targeted interventions and support systems.(AU)


Assuntos
Humanos , Masculino , Feminino , Pessoas Transgênero , Identidade de Gênero , Autoimagem , Imagem Corporal , Psicologia Clínica , Saúde Mental , Peso Corporal
2.
Int J Eat Disord ; 57(3): 703-715, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38366755

RESUMO

OBJECTIVE: Aversive emotions toward food and the consequences of eating are at the core of anorexia nervosa. Exposure therapy is effective to reduce anxiety and avoidance toward feared stimuli. Based on the inhibitory learning framework, this study examined the feasibility to induce social support or positive mood to enhance the impact of a single session virtual food exposure on food-related anxiety in anorexia nervosa. METHOD: One hundred and forty-five patients were randomized to: (1) virtual food exposure (i.e., baseline condition), (2) virtual food exposure plus positive mood induction (i.e., positive mood condition), or (3) virtual food exposure plus social support (i.e., social support condition). They completed self-report assessments of anxiety toward virtual foods, general anxiety, positive mood, social support, and hunger, before and after virtual food exposure. Number of eye gazes and touches toward foods were recorded during the virtual reality exposure. RESULTS: Patients had lower levels of anxiety toward virtual foods in the positive mood condition, compared to the baseline condition [F(2,141) = 4.36, p = .015; medium effect size]. They also touched food items more often in the baseline condition. No other significant changes were found. DISCUSSION: Virtual food exposure enhanced by positive mood induction seems a feasible approach to strengthen the impact of food exposure in anorexia nervosa. PUBLIC SIGNIFICANCE: This research contributes to the understanding of how patients with anorexia nervosa can be supported to overcome fear and anxiety around food. Virtual reality enables patients to expose themselves to difficult situations (e.g., kitchen with foods of various calorie contents) while experiencing positive stimuli, such as a loving and kind pet or a supportive avatar.


Assuntos
Anorexia Nervosa , Humanos , Anorexia Nervosa/terapia , Anorexia Nervosa/psicologia , Estudos de Viabilidade , Ansiedade/etiologia , Ansiedade/terapia , Ansiedade/psicologia , Emoções , Apoio Social
3.
Int J Clin Health Psychol ; 24(1): 100441, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38292830

RESUMO

In the context of body image and mental health, transgender individuals face distinctive challenges stemming from the complexities of their gender identity journey, societal expectations, and body norms. However, the existing line of research on this topic remains limited. This study explores the complex relationship in transgender individuals between body objectification, body weight dissatisfaction, and eating concerns. A sample of 154 individuals (77 transgenders paired with 77 cisgenders) was recruited via LGBTQ+ groups' mailing lists. Participants completed various questionnaires assessing body image, eating psychopathology, depression, and body objectification. Propensity score matching was performed with different variables: age, current BMI, years of education, current self-identified gender, and sexual orientation. The results revealed that transgender individuals experienced higher levels of body objectification, body weight dissatisfaction, and eating concerns compared to their cisgender counterparts. Additionally, age emerged as a protective factor, as older transgender individuals demonstrated improved body acceptance and self-esteem. Logistic regression analyzes indicated that bulimic behaviors, depressive symptoms, and appearance control beliefs were specific factors significantly associated with being transgender. Our findings highlight the unique challenges faced by transgender individuals in navigating their gender identity and body image, underscoring the importance of targeted interventions and support systems.

4.
J Clin Med ; 12(23)2023 Nov 24.
Artigo em Inglês | MEDLINE | ID: mdl-38068346

RESUMO

In recent years, the definition, clinical characteristics, and psychological aspects of anorexia nervosa (AN) have undergone notable changes, influenced by various factors such as biology, psychology, and the environment. The COVID-19 pandemic is one such external factor that has been preliminarily identified as affecting the clinical presentation of AN. This study specifically aims to assess the alterations in psychological and medical features observed in individuals with AN during the pandemic. This study is a retrospective case review of 252 people diagnosed with AN from two different cohorts: 2010-2012 and 2021. A comparison of psychological and medical data was conducted to identify specific differences in the initial clinical evaluation. Additionally, different effects of the pandemic on age cohorts were assessed, with a focus on distinctions between adolescents and adults. Results revealed that the pandemic cohort had a higher number of new cases, with patients being younger and experiencing more severe psychological symptoms. Hospitalization rates upon first access were also elevated, but no significant differences in medical values were observed. Adolescents during the pandemic showed increased episodes of binge eating, decreased obsessive-compulsive symptoms, and greater difficulty in interoceptive awareness. This study reveals distinct differences in symptomatology among patients, with a particular focus on psychological characteristics such as impulsive behaviors and interoceptive awareness. These behavioral and interoceptive changes could have potential considerations in the treatment pathway. Further investigations are warranted to gain a deeper understanding of the evolving clinical presentation of anorexia nervosa after the pandemic.

5.
PLoS One ; 18(11): e0294957, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38011212

RESUMO

Evidence is discordant regarding how emotional processing and cognitive control interact to shape behavior. This observational study sought to examine this interaction by looking at the distinction between proactive and reactive modes of control and how they relate to emotional processing. Seventy-four healthy participants performed an emotional priming Stroop task. On each trial, target stimuli of a spatial Stroop task were preceded by sad or neutral facial expressions, providing two emotional conditions. To manipulate the requirement of both proactive and reactive control, the proportion of congruent trials (PC) was varied at the list-wide (LWPC) and item-specific (ISPC) levels, respectively. We found that sad priming led to behavioral costs only in trials with low proactive and reactive cognitive control demands. Our findings suggest that emotional processing affects cognitive processes other than cognitive control in the Stroop task. Moreover, both proactive and reactive control modes seem effective in overcoming emotional interference of priming stimuli.


Assuntos
Emoções , Transtornos do Humor , Humanos , Teste de Stroop , Expressão Facial , Cognição , Tempo de Reação
6.
Eur Psychiatry ; 66(1): e85, 2023 10 23.
Artigo em Inglês | MEDLINE | ID: mdl-37869966

RESUMO

BACKGROUND: Autistic symptoms represent a frequent feature in schizophrenia spectrum disorders (SSD). However, the prevalence and the cognitive and functional correlates of autistic symptoms in unaffected first-degree relatives of people with SSD remain to be assessed. METHODS: A total of 342 unaffected first-degree relatives related to 247 outpatients with schizophrenia were recruited as part of the multicenter study of the Italian Network for Research on Psychoses (NIRP). Autistic features were measured with the PANSS Autism Severity Scale. Three groups of participants, defined on the presence and severity of autistic symptoms, were compared on a wide array of cognitive and functional measures. RESULTS: Of the total sample, 44.9% presented autistic symptoms; 22.8% showed moderate levels of autistic symptoms, which can be observed in the majority of people with SSD. Participants with higher levels of autistic symptoms showed worse performance on Working Memory (p = 0.014) and Social Cognition (p = 0.025) domains and in the Global Cognition composite score (p = 0.008), as well as worse on functional capacity (p = 0.001), global psychosocial functioning (p < 0.001), real-world interpersonal relationships (p < 0.001), participation in community activities (p = 0.017), and work skills (p = 0.006). CONCLUSIONS: A high prevalence of autistic symptoms was observed in first-degree relatives of people with SSD. Autistic symptoms severity showed a negative correlation with cognitive performance and functional outcomes also in this population and may represent a diagnostic and treatment target of considerable scientific and clinical interest in both patients and their first-degree relatives.


Assuntos
Transtorno Autístico , Transtornos Psicóticos , Esquizofrenia , Humanos , Esquizofrenia/diagnóstico , Esquizofrenia/epidemiologia , Transtornos Psicóticos/epidemiologia , Relações Interpessoais , Itália/epidemiologia
7.
Eur Eat Disord Rev ; 31(6): 837-849, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37415396

RESUMO

OBJECTIVE: The integration of sensory, motor, and cognitive systems is embodied cognition, according to which mind and body are not separate and distinct, and our body (and our brain, as part of the body) contributes to determining our mental and cognitive processes. In spite of limited data available, Anorexia nervosa (AN) appears as a condition in which embodied cognition is altered, in particular, if we consider bodily sensations and visuospatial information processing. We aimed to evaluate the ability to correctly identify body parts and actions in both full (AN) and atypical AN (AAN), looking at the role of the underweight status. METHOD: A group of 143 females (AN = 45, AAN = 43, unaffected women = 55) was enrolled. All participants performed a linguistic embodied task to evaluate the association between a picture-showing a bodily action-and a written verb. Additionally, a subsample of 24 AN participants performed a retest after stable weight recovery. RESULTS: Both AN and AAN demonstrated an abnormal ability to evaluate the picture-written verb associations, especially if the involved bodily effectors were the same in both stimuli (i.e., pictorial and verbal) and needed a longer response time. CONCLUSIONS: Specific embodied cognition linked to body schema seems to be impaired in persons with AN. The longitudinal analysis showed a difference between AN and AAN only in the underweight condition, suggesting the presence of an abnormal linguistic embodiment. More attention should be devoted to embodiment during AN treatment to improve bodily cognition, which might, in turn, diminish body misperception.


Assuntos
Anorexia Nervosa , Humanos , Feminino , Anorexia Nervosa/psicologia , Magreza , Cognição , Encéfalo , Linguística
8.
Eur Eat Disord Rev ; 31(6): 813-821, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37408111

RESUMO

OBJECTIVE: A biased attentional processing of food stimuli may represent a disorder maintenance factor in patients with anorexia nervosa (AN). The present study aimed at investigating the temporal course of attentional deployment towards both high-calorie and low-calorie foods in patients with AN using eye-tracking. METHOD: Fifty-two patients with restrictive AN and 54 healthy controls (HC) performed a dot-probe task while their gaze was recorded with an eye-tracking system. The direction bias (percentage of trials in which the gaze was directed towards the food at first fixation, 500, and 1500 ms), and the duration bias (percentage of time spent looking at the food) were extracted. RESULTS: Regarding the direction bias, a group by time interaction emerged (F = 3.29, p = 0.038): while in the control group the bias continued to increase over the course of the trial, patients with AN showed a reduction of the bias between the 500 and 1500 ms. No group differences were observed on the duration bias. CONCLUSIONS: In advanced stages of attentional deployment patients with AN start to differ from HC by diverting their attention away from food stimuli, a strategic process that may contribute to food avoidance and calorie restriction.

9.
Appetite ; 188: 106619, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37268275

RESUMO

In recent years, different studies highlighted the importance of assessing behavioral tendencies toward different food stimuli in healthy and pathological samples. However, heterogeneities in experimental approaches and small sample sizes make this literature rather inconsistent. In this study, we used a mobile approach-avoidance task to investigate the behavioral tendencies toward healthy and unhealthy foods compared to neutral objects in a large community sample. The role of some contextual and stable subjective variables was also explored. The sample included 204 participants. The stimuli comprised 15 pictures of unhealthy foods, 15 pictures of healthy foods, and 15 pictures of neutral objects. Participants were required to approach or avoid stimuli by respectively pull or push the smartphone toward or away from themselves. Accuracy and reaction time of each movement were calculated. The analyses were conducted using a generalized linear mixed-effect model (GLMMs), testing the two-way interaction between the type of movement and the stimulus category and the three-way interactions between type of movement, stimulus, and specific variables (BMI, time passed since the last meal, level of perceived hunger). Our results evidenced faster approaching movement toward food stimuli but not toward neutrals. An effect of BMI was also documented: as the BMI increased, participants became slower in avoiding unhealthy compared to healthy foods, and in approaching healthy compared to unhealthy stimuli. Moreover, as hunger increased, participants became faster in approaching and slower in avoiding healthy compared to unhealthy stimuli. In conclusion, our results show an approach tendency toward food stimuli, independent from caloric content, in the general population. Furthermore, approach tendencies to healthy foods decreased with increasing BMI and increased with perceived hunger, indicating the possible influence of different mechanisms on eating-related behavioral tendencies.


Assuntos
Alimentos , Fome , Humanos , Índice de Massa Corporal , Preferências Alimentares , Tempo de Reação
10.
Appetite ; 188: 106639, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37356579

RESUMO

An altered automatic processing of food stimuli may contribute to the maintenance of calorie restriction in patients with restrictive Anorexia Nervosa (AN-R). The present study aimed to assess whether task-irrelevant food distractors elicited a different interference effect in the motor actions of patients with AN-R compared to healthy controls (HC). 40 patients with acute AN-R and 40 HC performed an irrelevant distractor task in which they were required to perform a reaching movement from a starting point to a green dot, while an irrelevant distractor (a high-calorie food, low-calorie food, or neutral object) was presented in the middle of the screen. Mouse trajectories and response times (RT) were recorded. The analyses conducted on the kinematic variables revealed that while the trajectories of HC veered similarly toward the three categories of stimuli, AN-R patients showed an increased deviation toward low-calorie foods and a reduced deviation toward high-calorie foods compared to neutral objects. No significant results emerged as regards RT. The pattern of responses observed in patients with AN-R (deviation increased toward low-calorie and reduced toward high-calorie) is consistent with their eating habits and may thus represent an implicit mechanism sustaining calorie restriction in patients with AN-R.


Assuntos
Anorexia Nervosa , Animais , Camundongos , Alimentos , Comportamento Alimentar/fisiologia , Ingestão de Energia/fisiologia , Tempo de Reação
11.
Heliyon ; 9(5): e15809, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37180923

RESUMO

Background: Aerobic exercise and movement training improve premenstrual syndrome (PMS) symptoms in women. However, the data is still preliminary, and online-based training has not been evaluated yet. Thus, this pilot study aims to assess the workability and usefulness of an online protocol based on aerobic exercise and movement training as an intervention for premenstrual symptoms. Methods: A sample of 30 women from the general population was enrolled in this study, with an average age of 28.27 ± 9.35, and an average BMI of 23.47 ± 3.42 kg/m2. A total of 29 women completed an eight-week online protocol consisting of 30-min aerobic exercises twice a week, as well as a weekly 30-min movement training protocol. A psychological evaluation was conducted at the baseline and after completing the training via the patients' health questionnaire, the body weight image and self-esteem questionnaire, and the premenstrual symptoms screening tool, looking for changes in well-being and specific symptoms related to menses. Results: Significant improvements in PMS (p = .015) and mood (p = .011) were recorded, with specific mood effects related to PMS symptomatology. The patients provided positive feedback on the protocol, and adherence was optimal. Conclusion: The effectiveness of a combination of aerobic and isometric exercises was confirmed as a valuable tool in improving women's well-being and reducing premenstrual symptomatology, even if the protocol is delivered online, which tends to be more affordable for the participants than in-presence sessions. Future studies might assess the difference between online programs and face-to-face interventions.

12.
J Clin Med ; 12(5)2023 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-36902532

RESUMO

The aim of this study was to explore, in a sample of patients with a diagnosis of AN, the ability to question their first impression and, in particular, the willingness to integrate their prior ideas and thoughts with additional progressive incoming information. A total of 45 healthy women and 103 patients with a diagnosis of AN, consecutively admitted to the Eating Disorder Padova Hospital-University Unit, underwent a broad clinical and neuropsychological assessment. All participants were administered the Bias Against Disconfirmatory Evidence (BADE) task, which specifically investigates belief integration cognitive bias. Acute AN patients showed a significantly greater bias toward disconfirming their previous judgment, in comparison to healthy women (BADE score, respectively, 2.5 ± 2.0 vs. 3.3 ± 1.6; Mann-Whitney test, p = 0.012). A binge-eating/purging subtype of AN individuals, compared to restrictive AN patients and controls, showed greater disconfirmatory bias and also a significant propensity to uncritically accept implausible interpretations (BADE score, respectively, 1.55 ± 1.6 and 2.70 ± 1.97 vs. 3.33 ± 1.63; Kruskal-Wallis test, p = 0.002 and liberal acceptance score, respectively, 1.32 ± 0.93 and 0.92 ± 1.21 vs. 0.98 ± 0.75; Kruskal-Wallis test p = 0.03). Abstract thinking skills and cognitive flexibility, as well as high central coherence, are neuropsychological aspects positively correlated with cognitive bias, in both patients and controls. Research into belief integration bias in AN population could enable us to shed light on hidden dimensional aspects, facilitating a better understanding of the psychopathology of a disorder that is so complex and difficult to treat.

13.
Nutrients ; 15(4)2023 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-36839379

RESUMO

(1) Background: the investigation of how interpersonal functioning affects eating psychopathology has been receiving increasing attention in the last decade. This study evaluates the impact of virtual social inclusion or ostracism on emotions, perceived stress, eating psychopathology, and the drive to binge or restrict in patients across the eating disorder spectrum. (2) Methods: a group of 122 adolescent and adult females with different eating disorder diagnoses were compared to 50 healthy peers with regards to their performance on, and responses to the Cyberball task, a virtual ball-tossing game. Each participant was randomly assigned to playing a social inclusion or a social exclusion block of the Cyberball task and completed self-report assessments of emotions, perceived stress and urge to restrict/binge before and after the task. (3) Results: patients with anorexia nervosa showed a more negative impact on psychological well-being evaluated with the need threat scale after the excluding block, while patients with bulimia nervosa reported more negative effects after the overincluding condition. Patients with binge eating disorder showed a reduction in specific negative emotions after the overincluding block, unlike all other participants. (4) Conclusions: findings show significant correlations between restraint thoughts in patients with bulimia nervosa and binge thoughts in patients with binge eating disorder after being exposed to the inclusion condition. Different reactions in cognitive and emotional states of patients with eating disorders after different interpersonal scenarios confirm the impact of inclusive or exclusive relationships on eating psychopathology, with specific and different responses across the eating disorder spectrum, that have been discussed, linked to their eating behavioral cognition.


Assuntos
Anorexia Nervosa , Transtorno da Compulsão Alimentar , Bulimia Nervosa , Transtornos Cognitivos , Transtornos da Alimentação e da Ingestão de Alimentos , Adolescente , Adulto , Feminino , Humanos , Anorexia Nervosa/psicologia , Atitude , Transtorno da Compulsão Alimentar/psicologia , Bulimia Nervosa/psicologia , Emoções , Percepção
14.
Schizophr Res ; 251: 94-107, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36610377

RESUMO

Gender differences in clinical and psychosocial aspects of schizophrenia have been widely reported. Findings have not always been consistent, and some of them need further research. In a large sample of community dwelling persons with schizophrenia, we investigated gender differences in clinical, cognitive and functional indices, as well as their changes over a 4-year follow-up and their impact on real-life functioning. Gender differences in personal resources, cognitive and functional indices were explored also in a sample of healthy controls. Men with respect to women had an earlier age of illness onset, a worse premorbid adjustment in the academic domain, more severe avolition, expressive deficit and positive symptoms, lower prevalence of comorbidity for affective disorders, less frequent use of two coping strategies ('religion' and 'use of emotional support') and more frequent positive history of substance and alcohol abuse. In addition, men were more impaired in verbal learning, while women in reasoning/problem solving. Some patterns of gender differences observed in healthy controls were not confirmed in patients. Men's disadvantages in the clinical picture did not translate into a worse outcome. This finding may be related to the complex interplay of several factors acting as predictors or mediators of outcome.


Assuntos
Apatia , Transtornos Psicóticos , Esquizofrenia , Masculino , Humanos , Feminino , Esquizofrenia/epidemiologia , Esquizofrenia/diagnóstico , Seguimentos , Fatores Sexuais , Transtornos Psicóticos/epidemiologia , Transtornos Psicóticos/psicologia
15.
Eur Psychiatry ; 66(1): e10, 2023 01 11.
Artigo em Inglês | MEDLINE | ID: mdl-36628577

RESUMO

BACKGROUND: Deficits in social cognition (SC) are significantly related to community functioning in schizophrenia (SZ). Few studies investigated longitudinal changes in SC and its impact on recovery. In the present study, we aimed: (a) to estimate the magnitude and clinical significance of SC change in outpatients with stable SZ who were assessed at baseline and after 4 years, (b) to identify predictors of reliable and clinically significant change (RCSC), and (c) to determine whether changes in SC over 4 years predicted patient recovery at follow-up. METHODS: The reliable change index was used to estimate the proportion of true change in SC, not attributable to measurement error. Stepwise multiple logistic regression models were used to identify the predictors of RCSC in a SC domain (The Awareness of Social Inference Test [TASIT]) and the effect of change in TASIT on recovery at follow-up. RESULTS: In 548 participants, statistically significant improvements were found for the simple and paradoxical sarcasm of TASIT scale, and for the total score of section 2. The reliable change index was 9.8. A cut-off of 45 identified patients showing clinically significant change. Reliable change was achieved by 12.6% and RCSC by 8% of participants. Lower baseline TASIT sect. 2 score predicted reliable improvement on TASIT sect. 2. Improvement in TASIT sect. 2 scores predicted functional recovery, with a 10-point change predicting 40% increase in the probability of recovery. CONCLUSIONS: The RCSC index provides a conservative way to assess the improvement in the ability to grasp sarcasm in SZ, and is associated with recovery.


Assuntos
Transtornos Psicóticos , Esquizofrenia , Humanos , Cognição Social , Cognição , Transtornos Psicóticos/diagnóstico , Percepção Social , Esquizofrenia/diagnóstico
16.
Eur Eat Disord Rev ; 31(2): 349-359, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36573401

RESUMO

OBJECTIVE: Recent neuroscientific findings have highlighted the role of the thalamus in several cognitive functions, ranging from perception to cognitive flexibility, memory, and body representation. Since some of these functions may be involved in the pathophysiology of Anorexia Nervosa (AN), this study aims at exploring thalamic structure in different phases of the disorder. METHOD: The sample included 38 patients with acute AN, 20 patients who fully recovered from AN (recAN), and 38 healthy controls (HC), all female. All participants underwent high-resolution MRI. The volumes of the whole thalamus and 25 thalamic nuclei were extracted using an automated segmentation algorithm, and thalamic fractal dimension was estimated using the calcFD toolbox. RESULTS: Patients with acute AN, compared to HC, displayed reduced thalamic volume and complexity both at the whole level and at the level of specific nuclei. In patients recAN, instead, alterations were observed only at the level of the right laterodorsal and central lateral nuclei. CONCLUSIONS: In the acute phase of the disorder patients with AN present a widespread reduction in thalamic volume and complexity. However, these alterations seem to normalise almost completely following weight restoration, thus suggesting the involvement of malnutrition-related mechanisms.


Assuntos
Anorexia Nervosa , Desnutrição , Humanos , Feminino , Anorexia Nervosa/diagnóstico por imagem , Tálamo/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Cognição
17.
Psychiatry Clin Neurosci ; 77(2): 94-101, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36330847

RESUMO

AIM: Recent evidence suggests that the body image disturbance often observed in patients with anorexia nervosa also extends to the body schema. According to the embodiment approach, the body schema is not only involved in motor execution, but also in tasks that only require a mental simulation of a movement such as motor imagery, mental rotation of bodies, and visuospatial perspective-taking. The aim of the present study was to assess the ability of patients with anorexia to mentally simulate movements. METHODS: The sample included 52 patients with acute anorexia and 62 healthy controls. All participants completed three tests of explicit motor imagery, a mental rotation test and a test of visuospatial perspective-taking. RESULTS: Patients with anorexia nervosa, with respect to controls, reported greater difficulties in imagining movements according to a first-person perspective, lower accuracy in motor imagery, selective impairment in the mental rotation of human figures, and reduced ability in assuming a different egocentric visuospatial perspective. CONCLUSION: These results are indicative of a specific alteration in motor imagery in patients with anorexia nervosa. Interestingly, patients' difficulties appear to be limited to those tasks which specifically rely on the body schema, while patients and controls performed similarly in the 3D objects mental rotation task.


Assuntos
Anorexia Nervosa , Humanos , Imagem Corporal , Imaginação , Anorexia , Testes de Inteligência
18.
Biol Psychiatry ; 92(9): 730-738, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-36031441

RESUMO

BACKGROUND: The pattern of structural brain abnormalities in anorexia nervosa (AN) is still not well understood. While several studies report substantial deficits in gray matter volume and cortical thickness in acutely underweight patients, others find no differences, or even increases in patients compared with healthy control subjects. Recent weight regain before scanning may explain some of this heterogeneity. To clarify the extent, magnitude, and dependencies of gray matter changes in AN, we conducted a prospective, coordinated meta-analysis of multicenter neuroimaging data. METHODS: We analyzed T1-weighted structural magnetic resonance imaging scans assessed with standardized methods from 685 female patients with AN and 963 female healthy control subjects across 22 sites worldwide. In addition to a case-control comparison, we conducted a 3-group analysis comparing healthy control subjects with acutely underweight AN patients (n = 466) and partially weight-restored patients in treatment (n = 251). RESULTS: In AN, reductions in cortical thickness, subcortical volumes, and, to a lesser extent, cortical surface area were sizable (Cohen's d up to 0.95), widespread, and colocalized with hub regions. Highlighting the effects of undernutrition, these deficits were associated with lower body mass index in the AN sample and were less pronounced in partially weight-restored patients. CONCLUSIONS: The effect sizes observed for cortical thickness deficits in acute AN are the largest of any psychiatric disorder investigated in the ENIGMA (Enhancing Neuro Imaging Genetics through Meta Analysis) Consortium to date. These results confirm the importance of considering weight loss and renutrition in biomedical research on AN and underscore the importance of treatment engagement to prevent potentially long-lasting structural brain changes in this population.


Assuntos
Anorexia Nervosa , Anorexia Nervosa/diagnóstico por imagem , Anorexia Nervosa/terapia , Encéfalo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Estudos Multicêntricos como Assunto , Estudos Prospectivos , Magreza
19.
Nutrients ; 14(9)2022 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-35565703

RESUMO

(1) Background: Weight bias (WB) is an implicit psychological construct that can influence attitudes, beliefs, body experience, and evaluation of specific psychopathology relationships. Sexual orientation has played a crucial role in developing and maintaining psychiatric conditions linked to body evaluation, but few studies have evaluated possible connected biases. Thus, the paper aims to assess potential relationships between sexual orientation and WB, looking at potential roles in specific psychopathology; (2) Methods: A total of 836 cisgender subjects participated in an online survey, aged between 18 and 42 years old. Two specific aspects of WB were evaluated with validated scales about beliefs about obese people and fat phobia. Demographic variables, as well as depression and eating concerns were evaluated; (3) Results: Gay men and bisexual women showed higher levels of fat phobia, depression, and eating concerns. Regression analysis showed that sexual orientation significantly predicted fat phobia (p < 0.001) and beliefs about obese people (p = 0.014); (4) Conclusions: This study confirms the vulnerability of gay men and bisexual women to cognitive bias about their own bodies, showing a potential vulnerability about body and weight concerns.


Assuntos
Minorias Sexuais e de Gênero , Preconceito de Peso , Adolescente , Adulto , Bissexualidade/psicologia , Feminino , Humanos , Masculino , Obesidade , Comportamento Sexual , Adulto Jovem
20.
World J Biol Psychiatry ; 23(1): 46-54, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34132174

RESUMO

OBJECTIVES: People with schizophrenia (SCZ) present serious and generalised deficits in social cognition (SC), which affect negatively patients' functioning and treatment outcomes. The genetic background of SC has been investigated in disorders other than SCZ providing weak and sparse results. Thus, our aim was to explore possible genetic correlates of SC dysfunctions in SCZ patients with a genome-wide study (GWAS) approach. METHODS: We performed a GWAS meta-analysis of data coming from two cohorts made of 242 and 160 SCZ patients, respectively. SC was assessed with different tools in order to cover its different domains. RESULTS: We found GWAS significant association between the TMEM74 gene and the patients' ability in social inference as assessed by The Awareness of Social Inference Test; this association was confirmed by both SNP-based analysis (lead SNP rs3019332 p-value = 5.24 × 10-9) and gene-based analysis (p-value = 1.09 × 10-7). Moreover, suggestive associations of other genes with different dimensions of SC were also found. CONCLUSIONS: Our study shows for the first time GWAS significant or suggestive associations of some gene variants with SC domains in people with SCZ. These findings should stimulate further studies to characterise the genetic underpinning of SC dysfunctions in SCZ.


Assuntos
Esquizofrenia , Cognição Social , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Humanos , Proteínas de Membrana , Polimorfismo de Nucleotídeo Único , Esquizofrenia/genética
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