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An Introduction To The Event Related Potential Technique

Sex, Gender, and Pain: A Review of Recent Clinical and Experimental Findings

This article presents an introduction to the Health Belief Model (HBM). The HBM states that the perception of a personal health behavior threat is influenced by at least three factors: general health values, interest and concern about health; specific beliefs about vulnerability to a particular health threat; and beliefs about the consequences of the health problem. Once an individual perceives a threat to his health and is simultaneously cued to action, if his perceived benefits outweighs his perceived costs, then the individual is most likely to undertake the recommended preventive health action. Key words: health promotion, health belief model, perceived susceptibility, perceived severity, perceived benefits, perceived barriers, cues to action, self-efficacy. Content available only in Romanian.

Health Belief Model

Eating disorders are relatively rare among the general population. This review discusses the literature on the incidence, prevalence and mortality rates of eating disorders. We searched online Medline/Pubmed, Embase and PsycINFO databases for articles published in English using several keyterms relating to eating disorders and epidemiology. Anorexia nervosa is relatively common among young women. While the overall incidence rate remained stable over the past decades, there has been an increase in the high risk-group of 15–19 year old girls. It is unclear whether this reflects earlier detection of anorexia nervosa cases or an earlier age at onset. The occurrence of bulimia nervosa might have decreased since the early nineties of the last century. All eating disorders have an elevated mortality risk; anorexia nervosa the most striking. Compared with the other eating disorders, binge eating disorder is more common among males and older individuals.

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Epidemiology of Eating Disorders: Incidence, Prevalence and Mortality Rates

Preprocessing of functional magnetic resonance imaging (fMRI) involves numerous steps to clean and standardize the data before statistical analysis. Generally, researchers create ad hoc preprocessing workflows for each dataset, building upon a large inventory of available tools. The complexity of these workflows has snowballed with rapid advances in acquisition and processing. We introduce fMRIPrep, an analysis-agnostic tool that addresses the challenge of robust and reproducible preprocessing for fMRI data. fMRIPrep automatically adapts a best-in-breed workflow to the idiosyncrasies of virtually any dataset, ensuring high-quality preprocessing without manual intervention. By introducing visual assessment checkpoints into an iterative integration framework for software testing, we show that fMRIPrep robustly produces high-quality results on a diverse fMRI data collection. Additionally, fMRIPrep introduces less uncontrolled spatial smoothness than observed with commonly used preprocessing tools. fMRIPrep equips neuroscientists with an easy-to-use and transparent preprocessing workflow, which can help ensure the validity of inference and the interpretability of results.

/pdf/fmriprep-a-robust-preprocessing-pipeline-for-functional-mri-1slhybkz7w.pdf

fMRIPrep: a robust preprocessing pipeline for functional MRI

The Negative Physical Self Scale: Initial development and validation in samples of Chinese adolescents and young adults

This research assessed the prevalence and sociodemographic correlates of eating disorder symptoms among young people from China. A sample of 1320 females and 783 males between 12 and 22 years of age was recruited from academic settings in various regions of China and completed a back-translated Chinese version of the Eating Disorder Diagnostic Scale, as well as measures of body dissatisfaction and demographics. As expected, reported eating disorder symptoms and body dissatisfaction were significantly higher for females than males. Eating disorder symptoms and body dissatisfaction were also more pronounced for participants from higher income households. Finally, age differences in symptoms and body dissatisfaction were inconsistent. In sum, findings extend past prevalence research and highlight specific sociodemographic correlates of eating pathology and body dissatisfaction among Chinese adolescents and young adults.

Prevalence and sociodemographic correlates of eating disorder endorsements among adolescents and young adults from China.

This study examined the impact of threatening information on coping and pain tolerance in a healthy adult sample. Prior to engaging in a Cold Pressor Test (CPT), 121 college students were randomly assigned to one of three conditions: a threat condition in which they read an orienting passage warning them about symptoms and consequences of frostbite (pain as a signal for nociception), a reassurance condition in which they read an orienting passage about the safety of the CPT (pain independent of nociception), or a control condition in which no orienting passage was read before the experimental task. Only 15.6% of participants in the threat group completed the CPT to its 4-minute duration, compared with 55.6% in the reassurance group and 45.2% of those in the control group. Even though groups did not differ on level of reported pain, threatened participants catastrophized more about the pain and reported less use of cognitive coping strategies (reinterpreting pain sensations, ignoring pain, diverting attention away from pain to other experiences, and using coping self-statements) than other respondents. A path analysis indicated that the relation between threat and pain tolerance was fully mediated by catastrophizing and cognitive coping. Together, findings suggest that pain appraised as threatening contributes to a specific pattern of coping responses associated with a reduced capacity to bear pain.

The impact of threatening information about pain on coping and pain tolerance.

Substance addiction (or drug addiction) is a neuropsychiatric disorder characterized by a recurring desire to continue taking the drug despite harmful consequences. Non-substance addiction (or behavioral addiction) covers pathological gambling, food addiction, internet addiction, and mobile phone addiction. Their definition is similar to drug addiction but they differ from each other in specific domains. This review aims to provide a brief overview of past and current definitions of substance and non-substance addiction, and also touches on the topic of diagnosing drug addiction and non-drug addiction, ultimately aiming to further the understanding of the key concepts needed for a foundation to study the biological and psychological underpinnings of addiction disorders.

Definition of Substance and Non-substance Addiction.

Previous event-related potential (ERP) and brain imaging studies have suggested observer responses to others’ pain are modulated by various bottom-up and top-down factors, including emotional primes. However, the temporal dynamics underlying the impact of emotional primes on responses to others’ pain remains poorly understood. In the present study, we explored effects of negative, neutral, and positive emotional priming stimuli on behavioral and cortical responses to visual depictions of others in pain. ERPs were recorded from 20 healthy adults, who were presented with painful and non-painful target pictures following observation of negative, neutral, and positive emotional priming pictures. ERP analyses revealed that relative to non-painful pictures, differential P3 amplitudes for painful pictures were larger followed by negative primes than either neutral or positive primes. There were no significant differential P3 amplitudes for painful pictures relative to non-painful pictures were found followed neutral and positive emotional primes. These results suggest that negative emotional primes strengthen observers’ attention toward others’ pain. These results support the threat value of pain hypothesis.

Hong Chen

Papers

The Negative Physical Self Scale: Initial development and validation in samples of Chinese adolescents and young adults

Prevalence and sociodemographic correlates of eating disorder endorsements among adolescents and young adults from China.

The impact of threatening information about pain on coping and pain tolerance.

Definition of Substance and Non-substance Addiction.

Emotional primes modulate the responses to others’ pain: an ERP study