How neuronal migration and outgrowth shape network architecture

Neurons are not randomly arranged in the human brain. In the cortex, they are organized in interconnected clusters with high intrinsic connectivity. This modular connectivity structure, in which clusters eventually serve as functional units, is formed in early phases of development. The underlying self-organization process is regulated by neuronal activity but the detailed mechanisms are still poorly understood. Based on in vitro studies and computational modeling, neuroscientists have now made an important contribution to the understanding of brain networks and their development: in their current study, they show how neuronal outgrowth and migration interact in shaping network architecture and the degree of modularity in mature networks.

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Who is telling the truth about their health?

When researchers or policymakers ask health related questions — which they do a lot — they often rely on self-reported rather than tested health data. Researchers looked into how reliable this type of data is for research and found that, depending on country or age, self-reported data could be highly biased.

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Modern family roles improve life satisfaction for parents

Increased equality has a positive effect on mothers and fathers. Thanks to greater freedom to strike an individual balance between caring for children and working in paid employment, mothers and fathers today are happier with their lives than parents were 20 or 30 years ago, a study by sociologists has shown.

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CTE risk, severity increases with years playing American football

The risk and severity of developing chronic traumatic encephalopathy (CTE) increases with the number of years playing American football according to a new study. These findings reaffirm the relationship between playing tackle football and CTE, and for the first time quantify the strength of that relationship.

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