A molecule responsible for the proper formation of a key portion of the nervous system finds its way to the proper place not because it is actively recruited, but instead because it can’t go anywhere else.
motivation
Drugs from lizard saliva reduces the cravings for food
A drug made from the saliva of the Gila monster lizard is effective in reducing the craving for food. Researchers at the Sahlgrenska Academy, University of Gothenburg, have tested the drug on rats, who after treatment ceased their cravings for both food and chocolate.
Virtual reality allows researchers to measure brain activity during behavior at unprecedented resolution
Researchers have developed a new technique which allows them to measure brain activity in large populations of nerve cells at the resolution of individual cells. The technique, reported today in the journal Nature, has been developed in zebrafish to represent a simplified model of how brain regions work together to flexibly control behaviour.
Bilingualism fine-tunes hearing, enhances attention
A Northwestern University study that will be published in the Proceedings of the National Academy of Sciences (PNAS) provides the first biological evidence that bilinguals’ rich experience with language in essence “fine-tunes” their auditory nervous system and helps them juggle linguistic input in ways that enhance attention and working memory.
Crime and punishment: The neurobiological roots of modern justice
A pair of neuroscientists from Vanderbilt and Harvard Universities has proposed the first neurobiological model for third-party punishment. It outlines a collection of potential cognitive and brain processes that evolutionary pressures could have re-purposed to make this behavior possible.