Results 71 to 80 of about 620,156 (317)

Population-based incremental learning with memory scheme for changing environments

, 2005
Copyright @ 2005 ACMIn recent years there has been a growing interest in studying evolutionary algorithms for dynamic optimization problems due to its importance in real world applications.
Yang, S, Shengxiang Yang, Yang, Shengxiang   +2 more
core   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Pixel-wise programmability enables dynamic high-SNR cameras for high-speed microscopy

Nature Communications
High-speed wide-field fluorescence microscopy has the potential to capture biological processes with exceptional spatiotemporal resolution. However, conventional cameras suffer from low signal-to-noise ratio at high frame rates, limiting their ability to
Jie Zhang, Jonathan Newman, Zeguan Wang, Yong Qian, Pedro Feliciano-Ramos, Wei Guo, Takato Honda, Zhe Sage Chen, Changyang Linghu, Ralph Etienne-Cummings, Eric Fossum, Edward Boyden, Matthew Wilson   +12 more
doaj   +1 more source

Competitive learning modulates memory consolidation during sleep.

, 2018
Competition between memories can cause weakening of those memories. Here we investigated memory competition during sleep in human participants by presenting auditory cues that had been linked to two distinct picture-location pairs during wake.
Cheng, Larry Y., Brooks, Paula P., Norman, Kenneth A., Paller, Ken A., Antony, James W.   +4 more
core   +1 more source

Online Learning of a Memory for Learning Rates [PDF]

2018 IEEE International Conference on Robotics and Automation (ICRA), 2018
The promise of learning to learn for robotics rests on the hope that by extracting some information about the learning process itself we can speed up subsequent similar learning tasks. Here, we introduce a computationally efficient online meta-learning algorithm that builds and optimizes a memory model of the optimal learning rate landscape from ...
Meier, F., Kappler, D., Schaal, S.
openaire   +3 more sources

CSF Monoamine Metabolites and Cognitive Trajectory in Early Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Imaging and postmortem studies indicate that abnormalities in monoaminergic neurotransmission contribute to cognitive impairment in Parkinson's disease (PD). However, it remains uncertain if cerebrospinal fluid (CSF) monoamine metabolites can serve as biomarkers of cognitive decline in early PD.
Jing‐Yu Shao, Rong Li, Yu‐Xiang Jiao, Kai Ma, Hong‐Qi Yang, Zheng‐Yu Sun, Jie‐Wen Zhang, Shuai Chen   +7 more
wiley   +1 more source

Paraventricular thalamus hyperactivity mediates stress-induced sensitization of unlearned fear but not stress-enhanced fear learning (SEFL)

eLife
Exposure to stress can cause long-lasting enhancement of fear and other defensive responses that extend beyond the cues or contexts associated with the original traumatic event.
Kenji J Nishimura, Denisse Paredes, Nathaniel A Nocera, Dhruv Aggarwal, Michael R Drew   +4 more
doaj   +1 more source

Entorhinal–hippocampal neuronal circuits bridge temporally discontiguous events

, 2015
The entorhinal cortex (EC)–hippocampal (HPC) network plays an essential role for episodic memory, which preserves spatial and temporal information about the occurrence of past events.
Tonegawa, Susumu, Kitamura, Takashi, MacDonald, Christopher J   +2 more
core   +1 more source

Questioning short-term memory and its measurement: why digit span measures long-term associative learning [PDF]

, 2015
Traditional accounts of verbal short-term memory explain differences in performance for different types of verbal material by reference to inherent characteristics of the verbal items making up memory sequences.
Macken, B, Macken, Bill, Jones, Gary, Jones, G   +3 more
core   +1 more source

Learning from learning and memory in bumblebees [PDF]

Communicative & Integrative Biology, 2009
The difficulty to simultaneously record neural activity and behavior presents a considerable limitation for studying mechanisms of insect learning and memory. The challenge is finding a model suitable for the use of behavioral paradigms under the restrained conditions necessary for neural recording.
Riveros Rivera, Andre Josafat, Gronenberg, Wulfila   +1 more
openaire   +2 more sources