80 research outputs found
False Heart Rate Feedback and the Perception of Heart Symptoms in Patients with Congenital Heart Disease and Anxiety
Background Little is known about the mechanisms explaining an increased perception of heart symptoms in congenital heart disease (ConHD). In the present study, it was suggested that a combination of high trait anxiety and disease history increases the perception of heart symptoms. Purpose It was tested whether false heart cues will result in an increased perception of heart symptoms in patients with ConHD and anxiety. Method Thirty-six patients with ConHD and 44 healthy controls performed two exercise tasks. During one of the exercise tasks, participants were exposed to a false heart cue consisting of false heart rate feedback (regular or irregular). Perceived heart symptoms were assessed and heart rate, arterial partial pressure of CO2, and respirator rate were monitored continuously. Results In line with the predictions, false heart rate feedback resulted in an increased perception of heart symptoms in high trait anxious patients with ConHD that could not be explained by acute heart dysfunction. However, unexpectedly, this effect was not observed immediately after the false heart rate feedback task but after a second exercise task without false feedback. Conclusion The results suggest that not the sole presence of ConHD but ConHD in combination with high trait anxiety results in a vulnerability to overperceive heart symptom
A construção de uma metodologia observacional para o estudo de crianças em situação de rua: criando um manual de codificação de atividades cotidianas
The design of sign language electronic dictionaries for children with hearing impairments
Recommended from our members
Educator supply and demand in the South African public education system: integrated report
Education plays a key role in the development of any society. Responding to the need for empirical evidence on the demand for and supply of public educators in South Africa, the Education Labour Relations Council (ELRC) commissioned the Human Sciences Research Council-led consortium to conduct nation-wide research on the factors determining educator supply and demand in South African public education system. Growth demand for educators depends on learner enrolments and the learner-educator ratio, while replacement demand for educators depends on employment trends, demographics and attrition (including morbidity and morality). Educator supply depends on a number of factors, such as education graduates, morbidity and morality, and educators returning after a break from the profession. This report is an integration of the seven reports which emerged from the research, and pulls together the findings arising from it. What emerges is that the resignation, death and ageing of the present educator force is likely to have a significant effect on replacement demand for educators over the next four years
The effect of frontal EMG biofeedback training on the behavior of children with activity-level problems
Effects of changes in leaf height and shoot density on the abundance of two fishes,Rudarius ercodes andAcentrogobius pflaumii, in azostera bed
Composition of clinoamphibole as a function of fluid composition during metamorphism of basic rocks
- …