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Cardiac cycle modulates alpha and beta suppression during motor imagery.
Cereb Cortex
November 2024
Goldsmiths, University of London, New Cross London SE14 6NW, UK.
Previous interoception research has demonstrated that sensory processing is reduced during cardiac systole, an effect associated with diminished cortical excitability, possibly due to heightened baroreceptor activity. This study aims to determine how phases of the cardiac cycle-systole and diastole-modulate neural sensorimotor activity during motor imagery (MI) and motor execution (ME). We hypothesised that MI performance, indexed by enhanced suppression of contralateral sensorimotor alpha (8-13 Hz) and beta (14-30 Hz) activity, would be modulated by the cardiac phases, with improved performance during diastole due to enhanced sensory processing of movement cues.
View Article and Find Full Text PDFHearts and minds: The technopolitical role of affect in sociotechnical imaginaries.
Soc Stud Sci
December 2024
University College London, London, UK.
Sociotechnical imaginaries (SIs) have emerged as a popular and generative concept within Science and Technology Studies (STS). This article draws out the affective component of SIs, combining a review of relevant literatures with an empirical case study of an anti-fracking imaginary in Ireland to suggest how we might theorize an affective technopolitics of SIs. The literature review identifies three key aspects of SIs that would benefit from a more coherent conceptualization of affect: the utopian, productive, and collectivizing dimensions of imaginaries.
View Article and Find Full Text PDFComparison of Bayesian and frequentist monitoring boundaries motivated by the Multiplatform Randomized Clinical Trial.
Clin Trials
December 2024
Office of Biostatistics Research, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, MD, USA.
Article Synopsis
- The COVID-19 pandemic underscored the importance of efficient randomized clinical trials, and the Multiplatform Randomized Clinical Trial (mpRCT) utilized Bayesian methods for quicker decisions regarding drug efficacy and futility compared to traditional approaches.
- Bayesian methods involve translating prior beliefs about a treatment's effectiveness into hypothetical data, which are then combined with actual trial data to derive conclusions.
- The study found that the Bayesian efficacy boundary in the mpRCT closely aligns with the frequentist Pocock boundary, suggesting that the methods may yield similar outcomes in monitoring trial efficacy and futility.
Persistent Olfactory and Taste Dysfunction after COVID-19.
Life (Basel)
February 2024
Department of Teleaudiology and Screening, World Hearing Center, Institute of Physiology and Pathology of Hearing, 05-830 Kajetany, Poland.
(1) Background: One of the possible symptoms of COVID-19 is a sudden loss of smell and taste. The main aim of the study was to evaluate the severity of post-COVID-19 olfactory dysfunction (OD). A secondary aim was to assess the relationship between OD and gustatory (taste) dysfunction (GD).
View Article and Find Full Text PDFChatGPT is not ready yet for use in providing mental health assessment and interventions.
Front Psychiatry
January 2024
Service of Physiology and Functional Explorations, Farhat HACHED Hospital, University of Sousse, Sousse, Tunisia.
Background: Psychiatry is a specialized field of medicine that focuses on the diagnosis, treatment, and prevention of mental health disorders. With advancements in technology and the rise of artificial intelligence (AI), there has been a growing interest in exploring the potential of AI language models systems, such as Chat Generative Pre-training Transformer (ChatGPT), to assist in the field of psychiatry.
Objective: Our study aimed to evaluates the effectiveness, reliability and safeness of ChatGPT in assisting patients with mental health problems, and to assess its potential as a collaborative tool for mental health professionals through a simulated interaction with three distinct imaginary patients.
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