Despite recent advances in AI, building systems that can engage in natural and realistic cooperative interactions with human partners remains a challenge. In this article, we argue that as a precursor to modelling sophisticated cooperation in adults, it's useful to build a model of how cooperation develops in infants. We present a simple initial model of infant cooperation, embodied in BabyX - a hyperrealistic virtual simulation of an 18-month-old infant that can interact with human partners in real time. Our focus in this paper is on cooperative behaviours in the nonverbal domain. The framework for our model of these behaviours is a cognitive model of events and event processing. We detail how cognitive and motor mechanisms in BabyX lead to rudimentary cooperation manifested in nonverbal turn-taking. We introduce a novel empirical paradigm for testing BabyX's model of cooperation, by comparing her interactions with users with 'real' interactions between human infants and their caregivers, which we observed in a detailed empirical study. In this study, we find nonverbal turn-taking in human infant-caregiver interactions, consistent with our BabyX model. This initial model provides the foundation for a comprehensive, and developmentally consistent, model of human cooperation.
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http://dx.doi.org/10.1080/03036758.2022.2098781 | DOI Listing |
Best Pract Res Clin Anaesthesiol
September 2024
Department of Anaesthesiology, University Hospitals Leuven (BE), Department of Cardiovascular Sciences, KU Leuven (BE), Herestraat 49, B-3000, Leuven, Belgium.
Critical illness during pregnancy poses significant challenges driven by complex interactions between physiological changes, pre-existing conditions, and healthcare disparities. In high-income countries, increasing maternal age and comorbidities complicate obstetric care by triggering an unprecedented rise in cardiac disease during pregnancy, while infections like influenza and COVID-19 are important causes of maternal adult respiratory distress syndrome. Extracorporeal membrane oxygenation (ECMO) gained prominence as a vital intervention, providing respiratory and/or cardiac support, for varying indications between antenatal and postpartum periods.
View Article and Find Full Text PDFCancer Med
January 2025
Department of Orthopaedics and Traumatology, School of Clinical Medicine, Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong.
Background: By simultaneously staining multiple immunomarkers on a single tissue section, multiplexed immunohistochemistry (mIHC) enhances the amount of information that can be observed in a single tissue section and thus can be a powerful tool to visualise cellular interactions directly in the tumour microenvironment. Performing mIHC remains technically and practically challenging, and this technique has many limitations if not properly validated. However, with proper validation, heterogeneity between histopathological images can be avoided.
View Article and Find Full Text PDFCancer Rep (Hoboken)
January 2025
Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Background: Bioinformatics analysis of hepatocellular carcinoma (HCC) expression profiles can aid in understanding its molecular mechanisms and identifying new targets for diagnosis and treatment.
Aim: In this study, we analyzed expression profile datasets and miRNA expression profiles related to HCC from the GEO using R software to detect differentially expressed genes (DEGs) and differentially expressed miRNAs (DEmiRs).
Methods And Results: Common DEGs were identified, and a PPI network was constructed using the STRING database and Cytoscape software to identify hub genes.
Hum Brain Mapp
January 2025
Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University, Magdeburg, Germany.
The present study investigated the neuromodulatory substrates of salience processing and its impact on memory encoding and behaviour, with a specific focus on two distinct types of salience: reward and contextual unexpectedness. 46 Participants performed a novel task paradigm modulating these two aspects independently and allowing for investigating their distinct and interactive effects on memory encoding while undergoing high-resolution fMRI. By using advanced image processing techniques tailored to examine midbrain and brainstem nuclei with high precision, our study additionally aimed to elucidate differential activation patterns in subcortical nuclei in response to reward-associated and contextually unexpected stimuli, including distinct pathways involving in particular dopaminergic modulation.
View Article and Find Full Text PDFGenet Epidemiol
January 2025
Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, Massachusetts, USA.
Large-scale gene-environment interaction (GxE) discovery efforts often involve analytical compromises for the sake of data harmonization and statistical power. Refinement of exposures, covariates, outcomes, and population subsets may be helpful to establish often-elusive replication and evaluate potential clinical utility. Here, we used additional datasets, an expanded set of statistical models, and interrogation of lipoprotein metabolism via nuclear magnetic resonance (NMR)-based lipoprotein subfractions to refine a previously discovered GxE modifying the relationship between physical activity (PA) and HDL-cholesterol (HDL-C).
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