concussion
Resolving Zadehs Paradox Axiomatic Possibility Theory as a Foundation for Reliable Artificial Intelligence
Oleksii, Bychkov, Sophia, Bychkova, Khrystyna, Lytvynchuk
This work advances and substantiates the thesis that the resolution of this crisis lies in the domain of possibility theory, specifically in the axiomatic approach developed in Bychkovs article. Unlike numerous attempts to fix Dempster rule, this approach builds from scratch a logically consistent and mathematically rigorous foundation for working with uncertainty, using the dualistic apparatus of possibility and necessity measures. The aim of this work is to demonstrate that possibility theory is not merely an alternative, but provides a fundamental resolution to DST paradoxes. A comparative analysis of three paradigms will be conducted probabilistic, evidential, and possibilistic. Using a classic medical diagnostic dilemma as an example, it will be shown how possibility theory allows for correct processing of contradictory data, avoiding the logical traps of DST and bringing formal reasoning closer to the logic of natural intelligence.
Why Former NFL All-Pros Are Turning to Psychedelics
Research into whether drugs like ayahuasca can mitigate the effects of traumatic brain injury is in its infancy. Pro athletes like the Buffalo Bills' Jordan Poyer are forging ahead anyway. Roam the wide-open halls and cavernous showrooms of the Colorado Convention Center during Psychedelic Science, the world's largest psychedelics conference, and you'll see exhibitors hawking everything from mushroom jewelry, to chewable gummies containing extracts of the psychoactive succulent plant kanna, to broad flat-brim baseball caps emblazoned with "MDMA" and "IBOGA." Booths publicize organizations such as the Ketamine Taskforce and the Psychedelic Parenthood Community, and even, a live-action feature film looking to attract investors. It's a motley, multifarious symposium where indigenous-plant-medicine healers mingle with lanyard-clad pharma-bros, legendary underground LSD chemists, and workaday stoners tottering around in massive red and white toadstool hats that make them look like that cute little mushroom guy from . And yet, oddest among such oddities may be the sight of enormously burly NFL tough guys talking candidly about their feelings.
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You Get a Concussion. You Think You Know What to Do. You're Almost Certainly Wrong.
The first time Conor Gormally got a concussion, he felt as if he were standing on a ship at sea. A high school soccer player, he had decided to try out something new during his off-season: wrestling. His very first opponent caught him off guard, with a headbutt to the temple. "I stood up, then my horizon tilted to a 40-degree angle and I fell to the ground," Gormally told me years later. He felt the room tip and roll. "I was sobbing and saying, 'I don't know why I'm crying. I don't know what's happening here,' " Gormally recalled. After examining Gormally, the school athletic trainer told him to go home and rest. Gormally's primary care provider said the same thing, adding that he shouldn't return to school or practice until his symptoms resolved.
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Assessment of Sports Concussion in Female Athletes: A Role for Neuroinformatics?
Edelstein, Rachel, Gutterman, Sterling, Newman, Benjamin, Van Horn, John Darrell
Over the past decade, the intricacies of sports-related concussions among female athletes have become readily apparent. Traditional clinical methods for diagnosing concussions suffer limitations when applied to female athletes, often failing to capture subtle changes in brain structure and function. Advanced neuroinformatics techniques and machine learning models have become invaluable assets in this endeavor. While these technologies have been extensively employed in understanding concussion in male athletes, there remains a significant gap in our comprehension of their effectiveness for female athletes. With its remarkable data analysis capacity, machine learning offers a promising avenue to bridge this deficit. By harnessing the power of machine learning, researchers can link observed phenotypic neuroimaging data to sex-specific biological mechanisms, unraveling the mysteries of concussions in female athletes. Furthermore, embedding methods within machine learning enable examining brain architecture and its alterations beyond the conventional anatomical reference frame. In turn, allows researchers to gain deeper insights into the dynamics of concussions, treatment responses, and recovery processes. To guarantee that female athletes receive the optimal care they deserve, researchers must employ advanced neuroimaging techniques and sophisticated machine-learning models. These tools enable an in-depth investigation of the underlying mechanisms responsible for concussion symptoms stemming from neuronal dysfunction in female athletes. This paper endeavors to address the crucial issue of sex differences in multimodal neuroimaging experimental design and machine learning approaches within female athlete populations, ultimately ensuring that they receive the tailored care they require when facing the challenges of concussions.
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Analysis of Smooth Pursuit Assessment in Virtual Reality and Concussion Detection using BiLSTM
Sarker, Prithul, Hossain, Khondker Fariha, Adhanom, Isayas Berhe, Pavilionis, Philip K, Murray, Nicholas G., Tavakkoli, Alireza
The sport-related concussion (SRC) battery relies heavily upon subjective symptom reporting in order to determine the diagnosis of a concussion. Unfortunately, athletes with SRC may return-to-play (RTP) too soon if they are untruthful of their symptoms. It is critical to provide accurate assessments that can overcome underreporting to prevent further injury. To lower the risk of injury, a more robust and precise method for detecting concussion is needed to produce reliable and objective results. In this paper, we propose a novel approach to detect SRC using long short-term memory (LSTM) recurrent neural network (RNN) architectures from oculomotor data. In particular, we propose a new error metric that incorporates mean squared error in different proportions. The experimental results on the smooth pursuit test of the VR-VOMS dataset suggest that the proposed approach can predict concussion symptoms with higher accuracy compared to symptom provocation on the vestibular ocular motor screening (VOMS).
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Counterfactual Inference of Second Opinions
Benz, Nina L. Corvelo, Rodriguez, Manuel Gomez
Automated decision support systems that are able to infer second opinions from experts can potentially facilitate a more efficient allocation of resources; they can help decide when and from whom to seek a second opinion. In this paper, we look at the design of this type of support systems from the perspective of counterfactual inference. We focus on a multiclass classification setting and first show that, if experts make predictions on their own, the underlying causal mechanism generating their predictions needs to satisfy a desirable set invariant property. Further, we show that, for any causal mechanism satisfying this property, there exists an equivalent mechanism where the predictions by each expert are generated by independent sub-mechanisms governed by a common noise. This motivates the design of a set invariant Gumbel-Max structural causal model where the structure of the noise governing the sub-mechanisms underpinning the model depends on an intuitive notion of similarity between experts which can be estimated from data. Experiments on both synthetic and real data show that our model can be used to infer second opinions more accurately than its non-causal counterpart.
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Why AI still needs humans in the loop, at least for now
Large language models can help you write code -- or rewrite adverts, so they look fresh. They can make it easier to quickly grasp the key points of a research paper or a news story by writing and answering questions. Or they can get things embarrassingly wrong. Large language models like GPT-3 are key to search engines like Google and Bing, as well as providing suggested replies in email and chat, trying to finish your sentence in Word and powering coding assistants like GitHub Copilot. Considerations of what harm they can do usually focus on what you get by learning from everything that's published on the web, which includes the less positive opinions held by some.
23% of elite rugby players have brain structure abnormalities, study finds
A highly concerning new study lays bare the danger of repeated head impacts for rugby players. After performing scans of 44 elite adult rugby players, experts found 23 per cent had abnormalities in brain structure, specifically in white matter and blood vessels of the brain. White matter mainly comprises the neural pathways, the long extensions of the nerve cells, and is crucial to our cognitive ability. The study also found 50 per cent of the rugby players had an unexpected reduction in brain volume. Non-profit the Drake Foundation, which backed the study, is now calling for immediate changes in rugby protocols to ensure long-term welfare of elite players.
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Using A.I. to better understand concussions
"What AI does is it takes the commuting out of the hands of the human upfront and sort of says, 'well, you're telling me this is a concussed person and this is not, and here's some differences in variables that you may not be aware.' Of course it would be good to cross-validate that in another sample so you don't have something unique in this sample that is by chance but at least it gives you some clues so that you can have things that you can test prior but the AI can give you some hints of what you're not aware of," says Lecci.
Neurophysiological Correlates of Concussion: Deep Learning for Clinical Assessment
Concussion has been shown to leave the afflicted with significant cognitive and neurobehavioural deficits. The persistence of these deficits and their link to neurophysiological indices of cognition, as measured by event-related potentials (ERP) using electroencephalography (EEG), remains restricted to population level analyses that limit their utility in the clinical setting. In the present paper, a convolutional neural network is extended to capitalize on characteristics specific to EEG/ERP data in order to assess for post-concussive effects. An aggregated measure of single-trial performance was able to classify accurately (85%) between 26 acutely to post-acutely concussed participants and 28 healthy controls in a stratified 10-fold cross-validation design. Additionally, the model was evaluated in a longitudinal subsample of the concussed group to indicate a dissociation between the progression of EEG/ERP and that of self-reported inventories.