Subjective feelings are thought to arise from conceptual and bodily states. We examine whether the valence of feelings may also be decoded directly from objective ecological statistics of the visual environment. We train a visual valence (VV) machine learning model of low-level image statistics on nearly 8000 emotionally charged photographs. The VV model predicts human valence ratings of images and transfers even more robustly to abstract paintings. In human observers, limiting conceptual analysis of images enhances VV contributions to valence experience, increasing correspondence with machine perception of valence. In the brain, VV resides in lower to mid-level visual regions, where neural activity submitted to deep generative networks synthesizes new images containing positive versus negative VV. There are distinct modes of valence experience, one derived indirectly from meaning, and the other embedded in ecological statistics, affording direct perception of subjective valence as an apparent objective property of the external world.
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http://dx.doi.org/10.1038/s41467-024-53668-6 | DOI Listing |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11686310 | PMC |
Mol Med Rep
March 2025
2nd Department of Psychiatry, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, Greece.
Most psychiatric disorders are heterogeneous and are attributed to the synergistic action of a multitude of factors. It is generally accepted that psychiatric disorders are the outcome of interactions between genetic predisposition and environmental perturbations, which involve psychosocial stress, or alterations in the physiological state of the organism. A number of hypotheses have been presented on such environmental influences that may include direct insults such as injury, malnutrition and hostile living conditions, or indirect sequelae following infection from viruses such as influenza, arboviruses, enteroviruses and several herpesviruses, or the differential expression of human endogenous retroviruses.
View Article and Find Full Text PDFMult Scler
January 2025
Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
Background: Many common symptoms in post-acute sequelae following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (PASC) overlap with those of multiple sclerosis (MS). We examined symptoms and performance of the PASC score, developed in the general population, in MS based on infection history.
Methods: We surveyed North American Research Committee on Multiple Sclerosis (NARCOMS) registry participants regarding infections and categorized participants based on infection history.
J Ment Health Res Intellect Disabil
June 2023
Department of Educational Psychology, University of Minnesota.
Introduction: There is evidence of a gap between individuals with intellectual and developmental disabilities (IDD) who need treatment for self-injurious behavior (SIB) and those who receive treatment. The purpose of this study (=15) was to begin to understand the treatment gap from the perspective of family caregivers.
Methods: In semi-structured virtual interviews, family caregivers discussed their experiences of working with providers to treat their child's or sibling's self-injury.
Int J Appl Basic Med Res
November 2024
Director, Simulation Centre, Mahatma Gandhi Medical College Research Institute, Sri Balaji Vidyapeeth (Deemed to be University), Pondicherry - Cuddalore Road, Pillayarkuppam, Puducherry, India.
Background: Although the curriculum has changed, assessment tools are not in alignment with the new types of teaching such as early clinical exposure (ECE) and self-directed learning. Both in summative and formative assessment most commonly used tools for assessment of cognitive domain are written formats including MCQ. However, these assessment tools such as MCQ and written essays cannot assess the higher order thinking skills and clinical reasoning skills.
View Article and Find Full Text PDFCureus
December 2024
Department of Neurosurgery, University of Fukui, Fukui, JPN.
Background Prior to using the exoscope, we speculated that it represented an intermediate tool between a loupe and a microscope and had concerns about its visibility of deep, fine structures. Objective To evaluate the depths of meningioma for which the exoscope was suitable, and to clarify its disadvantages in meningioma resection. Methods Findings of consecutive meningioma surgeries using a 4K three-dimensional (3D) exoscope over a one-year period were evaluated for visibility of the surgical field, comfort of the surgeon's arm posture, the surgeon's head orientation, and perception of the image delay, accounting for the depth of the tumor.
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