While mindfulness meditation has been associated with enhanced attentional abilities, the consequences of loving-kindness meditation for attention have not previously been investigated. We examined the trait and state effects of 8 weeks of training in loving-kindness meditation (LKM) on the attentional blink. The attentional blink is a period of time in which a target stimulus is less likely to be detected if it follows too quickly (approximately 500 ms) after a previously detected target. For the two experiments reported here, a group of participants trained in LKM by meditating for approximately 15 min per day, four days per week, for 8 weeks. Experiment 1 utilized a pre-post design, with a non-meditating control group, to examine whether this training reduced the attentional blink. No differences were found. However, in an exploratory analysis, meditators did exhibit increases in two facets of mindfulness measured by the Five Facet Mindfulness Questionnaire: observation and descriptiveness. In experiment 2, we tested for a state effect of LKM by having trained meditators practice LKM immediately prior to the attentional blink task. Here, meditators had a significantly reduced blink size compared to control participants. To establish that this reduction was caused by the combination of LKM training with pre-task meditation, we analyzed the data in experiment 2 with respect to one of our previous works, which reported that the practice of LKM immediately prior to the attentional blink task in those without meditation training did not reduce the blink magnitude. This analysis also revealed a significant difference. Therefore, training in LKM, coupled with its practice immediately prior to an attention task, caused a state reduction in the attentional blink. These results are the first to demonstrate that LKM, an emotion-focused practice, influences cognitive processing.
This post-event, self-assessment CQI feedback form was associated with significant improvement in delivery of out-of-hospital CPR depth, fraction and preshock pause time.
En esta revisión bibliográfica y de educación continua se presentan los aspectos técnicos ecográficos de las nuevas herramientas de ultrasonido útiles en la evaluación diagnóstica de lesiones de la piel tanto benignas, malignas, inflamatorias y estéticas; estos estudios son: la ecografía de alta frecuencia y resolución con hasta 23 Mhz, el Doppler microvascular y las diferentes elastografías cualitativas y cuantitativas. Se realiza una revisión bibliográfica de las publicaciones de ecografía dermatológica en la literatura mundial y en libros de texto publicados hasta la fecha, con énfasis en las patologías más frecuentes que los dermatólogos requieren para una evaluación ecográfica especializada que ayude a definir sus diagnósticos y les permita establecer una terapéutica adecuada. Se presentan tablas resumen con detalles de los signos ecográficos más útiles e imágenes de algunos casos con patología dermatológica y sus respectivas ecografías realizadas en el Instituto de Radiología e Intervencionismo Alpha Imagen de la ciudad de Quito, Ecuador, que sirven de ejemplo para la compresión del uso práctico de las mismas.
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