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Vitamin D tied to Alzheimer’s risk

Low vitamin D is associated with an increased risk for Alzheimer’s disease and other forms of dementia.

Parkinson’s disease and depression often go hand in hand

Both conditions are associated with a shortage of dopamine, a neurotransmitter that helps regulate movement and control the brain’s pleasure center.

Bypass commands from brain to legs through computer

Gait disturbance in individuals with spinal cord injury is attributed to the interruption of neural pathways from brain to the spinal locomotor center, whereas neural circuits locate below and above the lesion maintain most of their functions. An artif…

PTSD can develop even without memory of the trauma, study concludes

There are many forms of memory and only some of these may be critical for the development of posttraumatic stress disorder (PTSD), reports a new study. The findings suggest that even with no explicit memory of an early childhood trauma, symptoms of PTS…

New non-invasive technique controls size of molecules penetrating the blood-brain barrier

The size of molecules penetrating the blood-brain barrier can be controlled using acoustic pressure -— the pressure of an ultrasound beam -— to let specific molecules through, a new technique has demonstrated for the first time. This innovative met…

Brain ‘switchboard’ found, important in attention, sleep

Using a mouse model, researchers have recorded the activity of individual nerve cells in a small part of the brain that works as a “switchboard,” directing signals coming from the outside world or internal memories. Because human brain disorders su…

ADHD, substance abuse and conduct disorder develop from the same neurocognitive deficits

Researchers at the University of Montreal and CHU Sainte-Justine Research Centre have traced the origins of ADHD, substance abuse and conduct disorder, and found that they develop from the same…

Fear of crime can be a good thing

In the past half-century, fear of crime in the United States has fueled “white flight” from big cities, become known as a quality of life issue and prompted scholars and law enforcement experts to…

Stigma undermines transgender relationships

Researchers who looked at the impact of discrimination, poverty and stigma on the mental health and relationship quality of transgender women and their male romantic partners found that social and…

Fiction stories may improve our empathy

Empathy is important for navigating complex social situations, and is considered a highly desirable trait.