Compensatory Activity in the Aging Brain

Aging gracefully: compensatory brain activity in high-performing older adults.

Whereas some older adults show significant cognitive deficits, others perform as well as young adults. We investigated the neural basis of these different aging patterns using positron emission tomography (PET). In PET and functional MRI (fMRI) studies, prefrontal cortex (PFC) activity tends to be less asymmetric in older than in younger adults (Hemispheric Asymmetry Reduction in Old Adults or ...

Compensatory neural activity distinguishes different patterns of normal cognitive aging

Most cognitive neuroscientific research exploring the nature of age-associated compensatory mechanisms has compared old adults (high vs. average performers) to young adults (not split by performance), leaving ambiguous whether findings are truly age-related or reflect differences between high and average performers throughout the life span. Here, we examined differences in neural activity (as m...

Compensatory Neurogenesis in the Injured Adult Brain

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Cognitive Activity Analysis of the Brain in Creative Design Thinking

The present study was aimed at analyzing cognitive activity of the brain during creative design thinking. This study was a causal-comparative study. The statistical population of the study was all students of Tabriz University in the period of 2016-17. At first, interested students were invited to participate in the research, and 30 of them were randomly selected and selected from delta, theta,...