First Fossil Brain: Shark Relative That Lived 300 Million Years Ago Yields Very Rare Specimen:
A 300-million-year-old brain of a relative of sharks and ratfish has been revealed by French and American scientists using synchrotron holotomography at the European Synchrotron Radiation Facility (ESRF). It is the first time that the soft tissue of such an old fossil brain has ever been found.
Evidence Appears To Show How And Where Brain's Frontal Lobe Works:
A Brown University study of stroke victims has produced evidence that the frontal lobe of the human brain controls decision-making along a continuum from abstract to concrete, from front to back.
Physical Fitness Improves Spatial Memory, Increases Size Of Brain Structure:
When it comes to the hippocampus, a brain structure vital to certain types of memory, size matters. Numerous studies have shown that bigger is usually better. Now researchers have found that elderly adults who are more physically fit tend to have bigger hippocampi and better spatial memory than those who are less fit.
Sex Is In The Brain, Whether It Be Lack Of Sexual Interest Or Hypoactive Sexual Desire Disorder:
More than 40 percent of women ages 18-59 experience sexual dysfunction, with lack of sexual interest -- hypoactive sexual desire disorder, or HSDD -- being the most commonly reported complaint, according to medical researchers. While some question the validity of this diagnosis, a multidisciplinary team from the Stanford University School of Medicine is devoted to objective investigation of such problems.
Wave Of Brain Activity Linked To Anticipation Captured:
Neuroscientists at Georgetown University Medical Center have, for the first time, shown what brain activity looks like when someone anticipates an action or sensory input which soon follows.
New And Unexpected Mechanism Identified How The Brain Responds To Stress:
Chronic stress takes a physical and emotional toll on our bodies and scientists are working on piecing together a medical puzzle to understand how we respond to stress at the cellular level in the brain. Being able to quickly and successfully respond to stress is essential for survival.
How Microscopic Changes To Brain Cause Schizophrenic Behavior In Mice:
Disrupting the function of a key molecule in the brain leads to microscopic brain abnormalities and schizophrenia-like behavior in mice. These abnormalities are similar to those seen in the autopsied brains of people who diagnosed with schizophrenia in life, according to a team of scientists at the Scripps Research Institute.
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