Based on highly sensitive recordings of neuron activity in the noses of mice, researchers from Kyushu University have found that olfactory sensory neurons can exhibit suppression or enhancement of response when odors are mixed, overturning a long-standing view that the response is a simple sum with more complex processing only happening at later stages.
Genome Biology and Evolution's latest virtual issue highlights recent research published in the journal within the field of human genetics.
Why is sleep so vital to our health? A UCLA-led team of scientists has answered this question and shown for the first time that a dramatic change in the purpose of sleep occurs at the age of about 2-and-a-half.
Study shows that short, easy-to-apply relaxation techniques can activate the body's regenerative system for fighting stress--offering new perspective on how we can treat stress-related disease
How much time does a brain need to learn a new word? A team of Skoltech researchers and their colleagues monitored changes in brain activity associated with learning new words and found that cortical representations of the sound and meaning of these words may form in just 1 to 2 hours after exposure without any night's sleep consolidation, as earlier research suggested. This research has implications for diagnosing speech disorders and improving the efficiency of learning.
For many livestock species, artificial insemination (AI) is standard. But it can be tricky to achieve success the first time, thanks to variability in ovulation timing across the herd. A new University of Illinois study identifies a naturally occurring sugar that slows the maturation of sperm in pigs, opening up the possibility of extending sperm storage time within the female reproductive tract and increasing the chances of successful fertilization through AI.
For the first time, scientists have studied the early effects of time-restricted feeding on the daily periodic oscillations of metabolites and genes in muscle, and metabolites in blood. The findings by scientists at the University of Copenhagen, the Australian Catholic University and Karolinska Institutet find that time-restricted feeding does not influence the muscle's core clock, and opens the door to more research on how these observed changes improve health.
Researchers at Tokyo Medical and Dental University (TMDU) in Japan have identified the protein GLT-1 as the neurotransmitter glutamate transporter in the brain that is related to cortical spreading depression, a pathological condition that underlies migraines. The researchers found that mice lacking GLT-1, but not other glutamate receptors, were more susceptible to cortical spreading depression than were controls. GLT-1 might therefore be a potential target for migraine therapy.
Neuroscientists distinguish brain regions based on what they do, but now have a new way to overlay information about how they are built, too.
According to ARRS' American Journal of Roentgenology (AJR), ultrasound-guided carpal tunnel release quickly improves hand function and reduces hand discomfort; improvement persisted beyond one year. Thus, ultrasound-guided carpal tunnel release may be a safe, effective, and less invasive alternative to traditional surgery.