Sequential Group Composition
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Sequential Group Composition: A Window into the Mechanics of Deep Learning
arXiv:2602.03655v2 Announce Type: replace Abstract: How do neural networks trained over sequences acquire the ability to perform structured operations, such as arithmetic, geometric, and algorithmic computation? To gain insight into this question, we introduce the sequential group composition task. In this task, networks receive a sequence of elements from a finite group encoded in a real vector space and must predict their cumulative product.
Mutation-dependent responses to sleep and exercise in clonal haematopoiesis
Abstract Clonal haematopoiesis (CH) activates inflammation and increases the risk of atherosclerosis1,2. Whether lifestyle alters CH clone expansion or the phenotypic programming of CH mutant cells, thereby affecting atherosclerosis, is unknown. Here, in humans and mice and across mutations in Jak2, Tet2, Trp53 and Dnmt3a, we demonstrate mutation-dependent responses to sleep and exercise in CH and show that mutant cells are uniquely sensitive to lifestyle.
Sesame dynamically rewires lignan metabolism during germination
Sesame dynamically rewires lignan metabolism during germination Lisa Lock Scientific Editor Robert Egan Associate Editor Sesame seeds are rich in lipid-soluble lignans such as sesamin, which are widely known as health-promoting phytochemicals. While these compounds rapidly decrease during germination and are converted into water-soluble glucosides, the molecular mechanism underlying this large-scale metabolic transition had remained unclear. Researchers at the Suntory Foundation for Life...
A thalamus–brainstem attractor network drives history-biased decisions
Abstract Natural environments often change gradually, making it adaptive to bias decisions on the basis of the recent past — a phenomenon known as serial dependence1,2,3. Large-scale recordings during behaviour have identified that serial dependence is a common motif for decision-making, with neural representations of past experiences found throughout the brain4,5,6,7,8,9,10,11. However, it remains unclear whether this bias arises from dedicated neural circuits with history-specific...