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Features

The Neuron

It is the individual nerve cell, the building block of the brain. It transmits nerve impulses over a single long fiber (the axon) and receives them over numerous short fibers (the dendrites)

By Charles F. Stevens

Small Systems of Neurons

Such systems are the elementary units of mental function. Studies of simple animals such as the large snail Aplysia show that small systems of neurons are capable of forms of learning and memory

By Eric R. Kandel

The Development of the Brain

As the human brain develops in utero it gains neurons at the rate of hundreds of thousands a minute. One problem of neurobiology is how the neurons find their place and make the right connections

By W. Maxwell Cowan

The Chemistry of the Brain

Signals are sent from one neuron to another by diverse chemical transmitters. These chemical systems, overlaid on the neuronal circuits of the brain, add another dimension to brain function

By Leslie L. Iversen

Brain Mechanisms of Vision

A functional architecture that may underlie processing of sensory information in the cortex is revealed by studies of the activity and the organization in space of neurons in the primary visual cortex

By David H. Hubel and Torsten N. Wiesel

Specializations of the Human Brain

Certain higher faculties, such as language, depend on specialized regions in the human brain. On a larger scale the two cerebral hemispheres are specialized for different kinds of mental activity

By Norman Geschwind

Thinking about the Brain

Reflecting on itself, the human brain has uncovered some marvelous facts. What appears to be needed for understanding how it works is new techniques for examining it and new ways of thinking about it

By F. H. C. Crick

Departments

  • 50 and 100 Years Ago, September 1979

  • The Brain

  • Science and the Citizen, September 1979

  • The Organization of the Brain

  • Brain Mechanisms of Movement

  • Disorders of the Human Brain

  • Bibliography, September 1979

  • Letters

    Letters to the Editors, September 1979

  • Recommended

    Books, September 1979

  • Mathematical Recreation

    Mathematical Games, September 1979

  • Amateur Scientist

    The Amateur Scientist, September 1979

  • Departments

    The Authors, September 1979

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September 1979

See the World from a Different Perspective

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