Month: November 2019

Simulations suggest embryo selection based on traits like height or IQ is still far off

The recent live births resulting from human embryonic CRISPR editing have heightened global concerns regarding ‘designer babies.’ Currently, the most practical approach to genetic ‘enhancement’ is preimplantation genetic screening of IVF embryos. The ability to select for traits that are brought about by multiple genes — rather than genetic diseases caused by a single mutation […]

Published on November 21, 2019

Lagged Coupled Changes Between White Matter Microstructure and Processing Speed in Healthy Aging: A Longitudinal Investigation

Age-related differences in white matter (WM) microstructure have been linked to lower performance in tasks of processing speed in healthy older individuals. However, only few studies have examined this link in a longitudinal setting. These investigations have been limited to the correlation of simultaneous changes in WM microstructure and processing speed. Still little is known […]

Published on November 21, 2019

Aging Changes Effective Connectivity of Motor Networks During Motor Execution and Motor Imagery

Age-related neurodegenerative and neurochemical changes are considered to be the basis for the decline of motor function; however, the change of effective connections in cortical motor networks that come with aging remains unclear. Here, we investigated the age-related changes of the dynamic interaction between cortical motor regions. Twenty young subjects and 20 older subjects underwent […]

Published on November 21, 2019