Publications by authors named "Mauricio W Ribeiro"
This study evaluated how news with positive and negative content about COVID-19, as well as a relaxation pause, affect the emotional state. We also investigated the association between emotional state and practicing meditation/yoga, physical activity or having a mental disease. For that, a sample of 717 participants, recruited through social media, were randomly assigned to listen to negative or positive news about COVID-19.
View Article and Find Full Text PDFQuantitative assessment of pilot-endured workloads during helicopter flying emergencies: an analysis of physiological parameters during an autorotation.
Sci Rep
September 2021
The procedures to be performed after sudden engine failure of a single-engine helicopter impose high workload on pilots. The maneuver to regain aircraft control and safe landing is called autorotation. The safety limits to conduct this maneuver are based on the aircraft height versus speed diagram, which is also known as "Dead Man's Curve".
View Article and Find Full Text PDFCan news with positive or negative content affect and a relaxation pause improve the emotional state of health care professionals? A randomized online experiment during COVID-19 pandemic.
Internet Interv
December 2021
A cause of mental distress during the COVID-19 pandemic is media exposure, which can impact health care professionals (HCPs) who must keep up to date with the statistics and procedures to fight the outbreak. This study aimed to evaluate the effects of listening to negative and positive news about COVID-19 pandemic and a relaxation pause audio. For that, we measured the emotional state through Likert items in a scale developed to assess how anxious, stressed, hopeful, conscious about emotions, irritated, despondent, joyful, optimistic, and preoccupied, he or she was feeling in the moment of evaluation.
View Article and Find Full Text PDFArticle Synopsis
- - This study investigates decision-making in complex situations by using a microstate model to analyze elite helicopter pilots during engine-failure scenarios near a safety threshold called the "dead man's curve."
- - The research finds that brain activity patterns during critical decision-making moments differ from baseline activity, with a significant focus on the medial prefrontal cortex, which is linked to emotional regulation.
- - The results suggest microstates could be effective neural indicators for understanding cognition in real-world environments, highlighting their potential for improving safety strategies in dynamic settings.
Article Synopsis
- Meditation practices have gained attention for their mental and physical health benefits, leading to scientific investigations into their effects, especially on brain function.
- There are challenges in standardizing the methods used to analyze the neural correlates of meditation, particularly in signal processing.
- This article focuses on EEG as a tool for studying meditation, discussing various signal processing techniques, their limitations, and good practices to enhance the accuracy of the findings.
Operant-conditioning boxes are widely used in animal training, allowing researchers to shape specific behaviors through reinforcements and/or punishments. Commercially available devices are expensive and run with proprietary software and hardware, hampering adaptations for the specific needs of an experiment. Therefore, many low-cost and open-source devices have recently been developed, but there are still few options for studying auditory behaviors.
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