The great attractors: chemical guides direct young neurons to their final destinations

Article Abstract:

A research group led by UC San Francisco's Marc Tessier-Lavigne has found two chemotropic proteins that attract nerve cell growth cones in growing nervous systems. The proteins, named netrin-1 and netrin-2, function in a manner close to that originally postulated by Santiago Ramon y Cajal.

Research, Axons, Neural receptors, Neurochemistry

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Paying attention

Article Abstract:

About 5-6% of school-age boys in the US now take Ritalin for attention deficit hyperactivity disorder (ADHD), and there are now concerns that the condition is being overdiagnosed. Improvements in the diagnosis of ADHD and biological aspects of it are described.

Usage, Diagnosis, Childhood mental disorders, Attention-deficit hyperactivity disorder, Attention deficit hyperactivity disorder, Child psychopathology, Ritalin (Medication)

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The guru of cyberspace

Article Abstract:

Author and MIT Media Lab co-founder Nicholas Negroponte is acknowledged as one of the most knowledgeable experts on cyberspace today. He believes that computer interfaces will eventually become an indispensable aspect of life.

Authors, Writers, Behavior, Negroponte, Nicholas P.

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