BACKGROUND Spaceflight has been associated with changes in gait and balance; it is unclear whether it affects cognition. Head down tilt bed rest (HDBR) is a microgravity analog that mimics cephalad fluid shifts and body unloading. In consideration of astronaut's health and mission success, we investigated the effects of HDBR on cognition and sensorimotor function. Furthermore, we investigated i...

conclusions atorvastatin may play a protective role in pulmonary fibrosis, with its effects mediated via the station’s antioxidant and anti-inflammatory properties. atorvastatin may be a potential agent for the treatment of lung injury and fibrosis. background pulmonary fibrosis is an idiopathic and chronic inflammatory interstitial lung disease, with a negligible response to available medical t...

objective(s):as far as we know,there has been no report regarding the effects of opium addiction or dependency of both parents on the learning and memory process in offspring. the aim of this study was to examine the learning and memory changes of adult male offspring whose mothers, fathers and/or both parents had dependency to opium before and during pregnancy. materials and methods: all exper...

Objective: The Theta-Alpha ratio (TAR) is known to differ based upon age and cognitive ability, with pathological electroencephalography (EEG) patterns routinely found within neurodegenerative disorders of older adults. We hypothesized that cognitive ability would predict EEG metrics differently within healthy young and old adults, and that healthy old adults not showing age-expected EEG activi...

The mobile telecommunications landscape has evolved into a highly competitive and complex ecosystem composed of network operators, mobile device manufacturers as well as software, content and service providers. This major shift has strongly impacted the fundamental nature of mobile devices which have now become complex multi-purpose, multi-context ubiquitous media systems. Such change has engen...

Failure to selectively attend to a facial feature, in the part-to-whole paradigm, has been taken as evidence of holistic perception in a large body of face perception literature. In this article, we demonstrate that although failure of selective attention is a necessary property of holistic perception, its presence alone is not sufficient to conclude holistic processing has occurred. One must a...

BACKGROUND Demographic ageing, and the health transition will soon lead to large increases in the number of dependent older people in low and middle income countries. Despite its importance, this topic has not previously been studied. METHODS A cross sectional catchment area one-phase survey of health conditions, dependency, care arrangements and caregiver strain among 2011 people aged 65 yea...

This thesis presents a computational model of working memory load in human sentence processing that attempts to explain a number of well-established linguistic performance effects that are associated with processing difficulty of certain syntactic structures. The computational model presented here is based on recent assumptions of working memory in computational cognitive modeling. In particula...

introduction: depression is one of the most common psychiatric problems. the prevalence of depression in iran has been estimated about 10-35% in females and 5-9% in males. nicotine is a narcotic substance and approximately 22% of american people are dependent on it. one of the notorious outcomes of nicotine-dependency is behavioral problems. the aim of this study was to find the relationship be...