(Medical Xpress) — Scientists at the UCSF-affiliated Gladstone Institutes have determined how specific circuitry in the brain controls not only body movement, but also motivation and learning, providing new insight into neurodegenerative disorders such as Parkinsons disease and psychiatric disorders such as addiction and depression.
Motivation
Overlooked nighttime spikes on EEGs may reflect an underlying brain injury
Children with developmental delay or autism may have unrecognized epilepsy-like brain activity during sleep, report researchers at Boston Children’s Hospital. These nighttime electrical spikes, detectable only on EEGs, occur even in some children without known epilepsy and appear to result from early strokes or other early life injuries to the developing brain, the study found. Results were published online April 25 by the journal Neurology.
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.
Brain changes may hamper decision-Making in old age
(HealthDay) — The ability to make decisions in new situations declines with age, apparently because of changes in the brain’s white matter, a new imaging study says.
Molecular imaging links systemic inflammation with depression
New research published in the April issue of The Journal of Nuclear Medicine reveals that systemic inflammation causes an increase in depressive symptoms and metabolic changes in the parts of the brain responsible for mood and motivation. With this finding, researchers can begin to test potential treatments for depression for patients that experience symptoms that are related to inflammation in the body or within the brain.