NPR’s ‘Car Talk’ Co-host Dies of Alzheimer’s

“Turns out he wasn’t kidding,” said Ray. “He really couldn’t remember last week’s puzzler.” (1)  On Monday Tom Magliozzi, co-host of NPR’s ‘Car Talk’ died of Alzheimer’s disease.  For his many fans the dreaded disorder suddenly became personal.  For many, it comes as a shock to learn that the mind-robbing disease can be fatal.

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Posted in by Douglas Fields, Degenerative Disorders, Press, Uncategorized
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The Brain’s White Matter–Learning beyond Synapses

Recently scientists have been exploring part of the brain that has been relatively unexplored in learning–white matter, comprising half of the human brain.  Here new research is detecting cellular changes during learning that are entirely different from the synaptic changes between neurons in gray matter.  A new study shows that learning a new motor skill requires generation of new myelin, the electrical insulation on nerve axons.

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Posted in Aging, Brain Development, by Douglas Fields, Cell Communication, Diet and Exercise, Learning and Memory, Neural Network Function, Uncategorized
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Ebola on the Brain

On September 23, 1976, while the nation’s attention was focused on the battle between Gerald Ford and Jimmy Carter for President of the United States, a 42-year-old woman half way around the world was engaged in a personal battle. Outside the limelight of world view, her struggle for life in a remote third world country marked the crossing of a threshold for our species. Continue reading

Posted in Animal Research, Brain Basics, by Douglas Fields, Caregivers, Diseases & Disorders, In Society, Uncategorized
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Why do nervous systems use slow voltage changes rather than fast electric currents along wires?

Richard Dawkins used his Twitter account to ask some unanswered questions about biology that he finds fascinating, inviting others to share ideas about hypothetical life forms that may or may not have evolved. By nature, these questions can only be addressed using some degree of speculation, but I find this one particularly interesting and I will attempt to answer it. He asks: Continue reading

Posted in Authors, Brain Basics, by Jean-Francois Gariepy, Cell Communication, Chemicals, Evolution, Neural Network Function, Neuroanatomy, Uncategorized
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