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Transsaccadic working memory in healthy ageing and neurodegenerative disease

22 hours 15 minutes ago
The brain continuously integrates rapidly changing visual input across eye movements to maintain stable perception, yet the precise mechanisms underpinning dynamic working memory and how these break down in brain diseases remain unclear. We developed a novel eye-tracking paradigm and computational models to investigate how spatial and colour information are updated across saccades in the human brain. Our findings reveal that saccades selectively impair spatial but not colour memory....
Sijia Zhao

Non-visual light modulates behavioral memory and gene expression in <em>Caenorhabditis elegans</em>

22 hours 15 minutes ago
Visible light influences a range of physiological processes, yet how animals respond to it independently of the visual system remains largely unknown. Here, we uncover a previously undescribed light-induced transcriptional pathway that modulates behavioral plasticity in Caenorhabditis elegans, a roundworm without eyes. We demonstrate that ambient visible light or controlled-intensity visible-spectrum LED activates an effector gene cyp-14A5 in non-neuronal tissues through the bZIP transcription...
Zhijian Ji

Transsaccadic working memory in healthy ageing and neurodegenerative disease

22 hours 15 minutes ago
The brain continuously integrates rapidly changing visual input across eye movements to maintain stable perception, yet the precise mechanisms underpinning dynamic working memory and how these break down in brain diseases remain unclear. We developed a novel eye-tracking paradigm and computational models to investigate how spatial and colour information are updated across saccades in the human brain. Our findings reveal that saccades selectively impair spatial but not colour memory....
Sijia Zhao

Genome-wide association study of frailty and integrative functional analysis to elucidate its relationship with aging

22 hours 15 minutes ago
Frailty is a clinically recognizable condition of vulnerability with aging, leading to adverse health outcomes. Previous GWASs on frailty have identified 59 susceptibility loci, although the underlying mechanisms remain unclear. We investigated the genetic determinants of frailty and biological relationship between frailty and aging genes in 14,664 middle-aged and elderly Korean participants. We performed cohort-based (KoGES and KNHANES) meta-analysis of GWAS and candidate gene approach focusing...
Yujin Kwak

Computerized cognitive training on touchscreen for elderly: a systematic review of randomised controlled trials

22 hours 15 minutes ago
An aging global population requires preventive and curative interventions to address cognitive decline. Touchscreen computerized cognitive training provides an engaging, portable, cost-effective, and accessible solution for seniors. We conducted a systematic review of randomized controlled trials (RCTs) to determine, using meta-analysis, the effects of computerized cognitive training on older adults using touchscreens. We conducted a literature review to identify RCTs involving older adults in...
Maxime Macé