ScienceDaily: Mind & Brain News

The Tsimane indigenous people of the Bolivian Amazon experience less brain atrophy than their American and European peers. The decrease in their brain volumes with age is 70% slower than in Western populations.

To help patients manage their mental wellness between appointments, researchers have developed a smart device-based electronic platform that can continuously monitor the state of hyperarousal, one of the signs of psychiatric distress. They said this advanced technology could read facial cues, analyze voice patterns and integrate readings from built-in vital signs sensors on smartwatches to determine if a patient is under stress.

A cross-disciplinary collaboration found that a majority of the U.S. public is supportive of soil carbon storage as a climate change mitigation strategy, particularly when that and similar approaches are seen as 'natural' strategies.

Researchers have found that normal exposure to light can drive the formation and growth of optic nerve tumors in mice -- and maybe people -- with a genetic predisposition. Such tumors can lead to vision loss.

Electric fish pause before sharing something particularly meaningful. Pauses also prime the sensory systems to receive new and important information. The study reveals an underlying mechanism for how pauses allow neurons in the midbrain to recover from stimulation.

Sleep scientists assessed how effective caffeine was in counteracting the negative effects of sleep deprivation on cognition.

Non-parents expand the range of their facial expressions in caring for infants among primates. The study shows the ability, among non-relatives, to both decipher facial expressions and to be attuned to others' emotional states, revealing the evolutionary nature of communication.

Using novel imaging methods for studying brain metabolism, researchers have identified the reservoir for a necessary sugar in the brain. Glycogen serves as a storage depot for the sugar glucose.

Researchers reveal the structure of a hetero-oligomer nano-aggregate - a substance that causes Parkinson's and dementia - through quadruple force mapping.

What information is retained in a memory over time, and which parts get lost? These questions have led to many scientific theories over the years, and now a team of researchers have been able to provide some answers.

Time not only flies when you're having fun - sometimes anticipating a fun event makes it feel like it will be over as soon as it begins, a new study suggests. Researchers found that people judge future positive events as being both farther away as well as shorter in duration than negative or neutral events.

While many of the scientific studies to date have focused on repetitive head trauma leading to the development of abnormal tau, a new study provides insights into white matter changes that may offer new targets for therapies.