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Frontoparietal Cortical Thickness Mediates the Effect of COMT Val¹⁵⁸Met Polymorphism on Age-Associated Executive Function
(Elsevier Science Inc, 2018-09-21)
Proper dopamine (DA) signaling is likely necessary for maintaining optimal cognitive performance as we age, particularly in prefrontal-parietal networks and in fronto-striatal networks. Thus, reduced DA availability is a ...
Up/Down and P/S Decompositions of Elastic Wavefields Using Complex Seismic Traces with Applications to Calculating Poynting Vectors and Angle-Domain Common-Image Gathers from Reverse Time Migrations
(Society of Exploration Geophysicists, 2018-06-01)
Separations of up- and down-going as well as of P- and S-waves are often a part of processing of multicomponent recorded data and propagating wavefields. Most previous methods for separating up/down propagating wavefields ...
The Relationship Between Age, Neural Differentiation, and Memory Performance
(Society for Neuroscience, 2018-11-02)
Healthy aging is associated with decreased neural selectivity (dedifferentiation) in category-selective cortical regions. This finding has prompted the suggestion that dedifferentiation contributes to age-related cognitive ...
Geofog4health: A Fog-Based SDI Framework for Geospatial Health Big Data Analysis
(Springer Heidelberg, 2018-02-21)
Spatial Data Infrastructure (SDI) is an important framework for sharing geospatial big data using the web. Integration of SDI with cloud computing led to emergence of Cloud-SDI as a tool for transmission, processing and ...
Anaerobic Cysteine Degradation and Potential Metabolic Coordination in Salmonella Enterica and Escherichia Coli
(2018-08-24)
Salmonella enterica has two CyuR-activated enzymes that degrade cysteine, i.e., the aerobic CdsH and an unidentified anaerobic enzyme; Escherichia coli has only the latter. To identify the anaerobic enzyme, transcript ...
Are There Multiple Kinds of Episodic Memory? An fMRI Investigation Comparing Autobiographical and Recognition Memory Tasks
(Society for Neuroscience, 2018-08-20)
What brain regions underlie retrieval from episodic memory? The bulk of research addressing this question with fMRI has relied upon recognition memory for materials encoded within the laboratory. Another, less dominant ...
The Time Course of Semantic and Relational Processing During Verbal Analogical Reasoning
(Academic Press Inc Elsevier Science, 2018-12-01)
Analogy is an important ability that allows humans to discover relationships between information domains that often vary in surface and relational characteristics. Cognitive neuroscience studies of analogy have demonstrated ...
ASL-MRICloud: An Online Tool for the Processing of ASL MRI Data
(Wiley, 2018-12-26)
Arterial spin labeling (ASL) MRI is increasingly used in research and clinical settings. The purpose of this work is to develop a cloud-based tool for ASL data processing, referred to as ASL-MRICloud, which may be useful ...
Gamma Oscillations During Episodic Memory Processing Provide Evidence for Functional Specialization in the Longitudinal Axis of the Human Hippocampus
(Wiley, 2018-11-05)
The question of whether the anterior and posterior hippocampus serve different or complementary functional roles during episodic memory processing has been motivated by noteworthy findings in rodent experiments and from ...
Estimation of Gas Hydrate and Free Gas Saturation, Concentration, and Distribution from Seismic Data
(Society of Exploration Geophysicists, 2018-08-24)
Gas hydrates contain a major untapped source of energy and are of potential economic importance. The theoretical models to estimate gas hydrate saturation from seismic data predict significantly different acoustic/ elastic ...