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Altered reward processing in women recovered from anorexia nervosa.

OBJECTIVE: Individuals with anorexia nervosa are known to be ascetic and able to sustain self-denial of food as well as most comforts and pleasures in life. Building on previous findings of altered striatal dopamine binding in anorexia nervosa, the authors sought to assess the response of the anterior ventral striatum to reward and loss in this disorder. METHOD: Striatal responses to a simple monetary reward task were investigated using event-related functional magnetic resonance imaging. To avoid the confounding effects of malnutrition, the authors compared 13 healthy comparison women and 13

Reward value coding distinct from risk attitude-related uncertainty coding in human reward systems.

When deciding between different options, individuals are guided by the expected (mean) value of the different outcomes and by the associated degrees of uncertainty. We used functional magnetic resonance imaging to identify brain activations coding the key decision parameters of expected value (magnitude and probability) separately from uncertainty (statistical variance) of monetary rewards. Participants discriminated behaviorally between stimuli associated with different expected values and uncertainty. Stimuli associated with higher expected values elicited monotonically increasing activation

Altered functional connectivity in default mode network in Internet gaming disorder: Influence of childhood ADHD.

OBJECTIVE: Internet gaming disorder (IGD) is a type of behavioral addiction characterized by abnormal executive control, leading to loss of control over excessive gaming. Attention deficit and hyperactivity disorder (ADHD) is one of the most common comorbid disorders in IGD, involving delayed development of the executive control system, which could predispose individuals to gaming addiction. We investigated the influence of childhood ADHD on neural network features of IGD. METHODS: Resting-state functional magnetic resonance imaging analysis was performed on 44 young, male IGD subjects with a

Dopaminergic function and intertemporal choice.

The discounting of delayed rewards, also known as temporal or delay discounting, is intrinsic to everyday decisions and can be impaired in pathological states such as addiction disorders. Preclinical and human studies suggest a role for dopaminergic function in temporal discounting but this relationship has not yet been verified using molecular imaging of the living human brain. Here, we evaluated dopaminergic function in temporal discounting using positron emission tomography (PET) with two different dopaminergic ligands assessing three populations in whom temporal discounting has been shown

Decision-making impairments in the context of intact reward sensitivity in schizophrenia.

BACKGROUND: Deficits in motivated behavior and decision-making figure prominently in the behavioral syndrome that characterizes schizophrenia and are difficult both to treat and to understand. One explanation for these deficits is that schizophrenia decreases sensitivity to rewards in the environment. An alternate explanation is that sensitivity to rewards is intact but that poor integration of affective with cognitive information impairs the ability to use this information to guide behavior. METHODS: We tested reward sensitivity with a modified version of an existing signal detection task wi

Association of Hair Loss With Health Utility Measurements Before and After Hair Transplant Surgery in Men and Women.

IMPORTANCE: Androgenetic alopecia is a highly prevalent condition across both sexes and can be surgically corrected through hair transplant. Health utility scores, which represent quantitative estimates of individual preferences for a given state of health, are a measure of health-related quality of life. The health utility scores for sex-specific alopecia and the posttransplant state have not previously been quantified. OBJECTIVE: To obtain health utility measurements for the objective assessment of sex-specific alopecia and hair transplant surgery and to analyze layperson perception of alop

Activation instead of blocking mesolimbic dopaminergic reward circuitry is a preferred modality in the long term treatment of reward deficiency syndrome (RDS): a commentary.

BACKGROUND AND HYPOTHESIS: Based on neurochemical and genetic evidence, we suggest that both prevention and treatment of multiple addictions … or behavior that will activate DA release, including alcohol, opiates, psychostimulants, nicotine, gambling, sex, and even excessive internet gaming. Acute utilization of these substances and/or stimulatory behaviors induces a feeling of well being. Unfortunately, sustained and prolonged abuse leads to a toxic" pseudo feeling" of well being resulting in t …

The use of clinical trials in comparative effectiveness research on mental health.

OBJECTIVES: A large body of comparative effectiveness research (CER) focuses on the use of observational and quasi-experimental approaches. We sought to examine the use of clinical trials as a tool for CER, particularly in mental health. STUDY DESIGN AND SETTING: Examination of three ongoing randomized clinical trials in psychiatry addressing issues that would pose difficulties for nonexperimental CER methods. RESULTS: Existing statistical approaches to nonexperimental data appear insufficient to compensate for biases that may arise when the pattern of missing data cannot be properly modeled

Subthalamic nucleus stimulation and compulsive use of dopaminergic medication in Parkinson's disease.

BACKGROUND: Behavioural disorders associated with compulsive use of dopaminergic drugs for Parkinson's disease (PD) such as dopamine dysregulation syndrome (DDS) and impulse control disorders (ICDs) may have devastating consequences and are challenging to manage. Whether or not such patients should undergo subthalamic nucleus (STN) deep brain stimulation (DBS) is controversial. A few case reports and small series have reported contrasting effects of STN DBS on dopamine misuse and ICDs, while a recent prospective study found clear beneficial effects of STN DBS on these disorders. METHODS: We c

Functional and structural neural indices of risk aversion in obsessive-compulsive disorder (OCD).

Obsessive-compulsive disorder (OCD) patients suffer from risk aversion, which may be mediated by their exaggerated response to threat and diminished response to reward. In this study, 13 OCD patients and 13 healthy matched controls underwent functional magnetic resonance imaging (fMRI) while playing an interactive risky choice game encompassing distinct intervals of threat and reward; as well as anatomical diffusion tensor imaging (DTI). Compared to healthy controls OCD patients were reluctant to make risky choices during the game. Furthermore, they displayed higher amygdala activation to thre

Brain activities associated with gaming urge of online gaming addiction.

The aim of this study was to identify the neural substrates of online gaming addiction through evaluation of the brain areas associated with the cue-induced gaming urge. Ten participants with online gaming addiction and 10 control subjects without online gaming addiction were tested. They were presented with gaming pictures and the paired mosaic pictures while undergoing functional magnetic resonance imaging (fMRI) scanning. The contrast in blood-oxygen-level dependent (BOLD) signals when viewing gaming pictures and when viewing mosaic pictures was calculated with the SPM2 software to evaluate

A royal road from homelessness--the clinical use of dreams.

The author discusses the use of a dynamic psychotherapy technique, specifically dream exploration, in his work with New York City's homeless. Given the short amount of time clinically available in working with this population, discussing the patient's dreams was found to quickly get to the most pressing here-and-now issues. The psychiatrist's interest in the patient's creation of the dream was also noted to enhance the therapeutic relationship and the patient's compliance thereby improving the chances of a successful therapeutic outcome.

Institutionalizing integrated treatment for concurrent disorders: creating new organizational discourse.

BACKGROUND: The high overlap of mental health and substance use problems in the Canadian health care system and the subsequent demand for more effective services for clients with these high-risk issues have stimulated the debate on their integrated treatment. Although the idea of integration has been endorsed by decision makers at both programs and system levels, little attention has been paid to factors that have facilitated this process. PURPOSE: In this article, the processes by which organizational texts, language, metaphors, and symbols have facilitated institutionalization of integrated

Impact of ADHD and cannabis use on executive functioning in young adults.

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) and cannabis use are each associated with specific cognitive deficits. Few studies have investigated the neurocognitive profile of individuals with both an ADHD history and regular cannabis use. The greatest cognitive impairment is expected among ADHD Cannabis Users compared to those with ADHD-only, Cannabis use-only, or neither. METHODS: Young adults (24.2 ± 1.2 years) with a childhood ADHD diagnosis who did (n=42) and did not (n=45) report past year ≥ monthly cannabis use were compared on neuropsychological measures to a local norm

Оценка и лечение агрессивного сексуального поведения: нынешние ограничения и потенциальные стратегии.

Несмотря на то, что в МКБ-11 была введена соответствующая классификация и симптоматика расстройства сексуального поведения (CSBD) по-прежнему противоречива. В этом обзоре мы изучили историю, эпидемиологический статус-кво, коморбиды, теории нейрофизики, текущие диагнозы и рекомендации по лечению для CSBD. Кроме того, мы подчеркнули недостатки текущих исследований и перспективы будущей работы. Селективные ингибиторы серотонина и налтрексон обычно используются в качестве "немаркированных" наркотиков. Диагностика и лечение пациентов, проходящих курс лечения, должны включать в себя биологические, п

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… In a study in Brazil that included 458 patients with gambling disorders, 6.4% reported CSB that met the criteria for mental disorders ( 30 ). … A more recent study examined men with CSBD (n=26), gambling disorder (n=26), alcohol use disorder (n=21), and healthy controls (n=21) ( 47 ). …

Predicting Sports Betting Intentions Among Adolescents: Gender-Specific Pathways in the Reasoned Action Approach.

Sports betting among adolescents is a growing public health concern, yet the social-cognitive mechanisms driving sports betting intentions in legally underage populations remain largely underexplored. This study applied the Reasoned Action Approach (RAA) to sports betting intentions in a large sample of secondary school students (N = 1,215; age range 13-19). Structural equation modeling was used to examine the extent to which sports betting-specific attitudes (instrumental and affective), perceived norms (injunctive and descriptive), and perceived behavioral control (capacity and autonomy) pre

Dynamics of Patient-Based Benefit-Risk Assessment of Medicines in Chronic Diseases: A Systematic Review.

BackgroundA critical gap exits in understanding the dynamics of patient-based benefit-risk assessment (BRA) of medicines in chronic diseases during the disease journey.PurposeTo systematically review and synthesize current evidence on the changes of patients' preferences about the benefits and risks of medicines during their disease journey including the influence of disease duration and severity, and previous treatment experience.MethodsA systematic review of studies identified in PubMed and Embase, from inception to November 2020, was conducted in accordance with the PRISMA (Preferred Report

Пищевая зависимость от поведенческих пристрастий: сетевой подход.

СПРАВОЧНАЯ ИНФОРМАЦИЯ/AIMS: Сопоставимость психических расстройств является хорошо задокументированным явлением. Вместе с тем не было проведено никакого расследования по вопросу о соучастии и механизмах, лежащих в основе пищевой зависимости и поведенческих пристрастий. Таким образом, цели этого исследования заключались в следующем: a) проведение сетевого анализа для изучения взаимосвязей между клиническим профилем пациентов, нуждающихся в лечении от игорного расстройства, навязчивым расстройством, связанным с покупкой и покупкой (CBSD), навязанным расстройством сексуального поведения, и сопутс

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… However, evidence-based treatments exist mainly for gambling disorder ( Kim and Hodgins, 2021 ), while interventions for FA are limited and their effectiveness remains unclear ( Florio et al., 2022 ). … In this context, a study using the Iowa Gambling Task (IGT), one of the most widely recognized computerized neurocognitive assessments for decision-making, found that patients with BAs, such as gambling disorder, are more likely to exhibit hypersensitivity to reward rather than to punishment and that …