This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein.
I'm Bob Doughty. This week, we tell about
the doctor and writer Oliver Sacks. He has
spent most of his adult life treating patients in New York City. He also teaches neurology and psychiatry at
Doctor Sacks is most famous for his books about people with disorders of the brain
and nervous system. The stories he
writes explore the science of the brain and the way it works. But they also tell a very human story about
the experiences of real people struggling to live with unusual conditions.
Imagine a person who has no memory of the past twenty
years of his life and still thinks he is a young man. The patient suffers from Korsakov's syndrome,
a brain disorder that leads to memory loss. He remains trapped in a distant past because
his memory of recent activities only lasts a few minutes.
imagine a man who learns to control the repeated movements and shouts that are
signs of Tourette's syndrome. His doctor
gives him medicine to take during the week to control the disorder. But on the weekends, the man decides to enjoy
the signs of Tourette's because they are a part of his identity and personality.
These are examples of stories
about patients as described in Oliver Sacks' book, "The Man Who Mistook His
Wife for a Hat." Published in nineteen
eighty-five, the book became a huge success.
Doctor Sacks' earlier
book, "Awakenings," told about his work with post-encephalitic patients at a
hospital in New York City. Signs of this
sickness include loss of speech and movement. In the nineteen sixties, Doctor Sacks gave the
then-new drug L-Dopa to the patients.
The drug gave them an explosive and sudden awakening to a temporary experience
of active life.
When Oliver Sacks began treating patients, a
traditional case history might be a detailed scientific description of a
person's disorder. Doctor Sacks has
expanded what he calls mechanical neurology to include the effects of the
disorder on a patient's identity and personality.
most cases, there is nothing Doctor Sacks can do to heal his patients. His aim is to help them find a way to live
with and accept their conditions as well as is possible.
His stories describe a patient's disorders in detail. But more importantly, the stories express the
patient's humanity as he or she struggles to survive in a world that has been
changed by sickness.
Oliver Sacks was born in nineteen
thirty-three in Britain to a family of doctors and scientists. His mother and father were doctors. His grandfather was an inventor. Doctor Sacks wrote a book, "Uncle Tungsten," about
his uncle -- a scientist who made light bulbs with pieces of tungsten wire.
As a child, Oliver had a deep love of chemistry. His childhood heroes included the British
chemist Humphry Davy and the French chemist Marie Curie. Oliver's questioning mind later led him to
study medicine and neurology. Oliver
Sacks moved to the United States in the early nineteen-sixties.
expert who had a great influence on Doctor Sacks' work was the Soviet
neuropsychologist Alexander Luria.
Doctor Luria believed that the study of the brain and nervous system
could not just be about facts and information.
He urged neurologists to have a more "personalistic" method that
included an understanding of the patient's self and identity. He also believed that patients could be
taught to adapt, or get used to, their conditions as fully as possible even if
they remained sick. Shortly before he
died, Alexander Luria urged Oliver Sacks to combine scientific investigation
with literary observation.
Sack's story "To See and Not See" gives a good example of his writing. This story is one of several in "An
Anthropologist on Mars," a work published in nineteen ninety-five. It tells about Virgil, a fifty-year old man
who had been blind since he was a child.
Doctors believed that his blindness resulted from a genetic condition.
a doctor who believes he may not be permanently blind. The doctor successfully operates on one eye. But after the eye heals, Virgil has trouble
seeing and understanding the light and images moving in front of him.
Sacks explains that people with eyesight have spent a lifetime learning how to
see. So, they know how to judge distance
and depth. He says they understand new
experiences and sights based on similar, past experiences.
had an active, but partly damaged retina and optic nerve. Yet his brain did not know how to deal with the
information coming from these areas of the eye.
As a blind man, Virgil had a rich life. He could enjoy great freedom because of his
excellent sense of touch, hearing, and smell. But with sight, he was unable to understand the
visual world around him.
Doctor Sacks explains that the brain's cortex in people
like Virgil who become blind adapts to its new situation. By regaining sight, Virgil's nervous system
had to undo its specialized adaptations.
Doctor Sacks also noted that such a big change made
Virgil more fearful about his condition. The story Doctor Sacks tells is medically descriptive
and informative. But it also remains
personal and respectful of Virgil's special situation.
Doctor Sacks has written books on
many subjects. In "Migraine", he
explores severe head pain to further understand the way neurons in the brain
In "The Island of the Colorblind," Doctor Sacks writes
about a community living on an island in the Pacific Ocean. These islanders all suffer from colorblindness.
They describe their world to Doctor
Sacks in terms of lightness, darkness, and pattern.
"Oaxaca Journal," Doctor Sacks explores his interest in pteridology, or the study of ferns. Ferns are some of the oldest plants on earth. They have not changed much over millions of
years. In this book, he explores the ferns
native to Oaxaca, Mexico and the cultural history of the area.
In his latest book, "Musicophilia,"
Oliver Sacks describes the effect music has on the brain by studying the experiences
of many people with unusual conditions.
" 'Musicophilia' means love of music. And this is a very general word. But I think this is almost universal among people.
And the width of the title has really allowed
me to embrace dozens and dozens of different musical experiences and
Music is an interesting subject for neurologists because
many parts of the brain work together to listen to and make music. Music activates even more areas of the brain
than language. And, music is very
powerful. Even people with severe brain
damage can still react to and even find healing in music.
For some people, music
can actually change the structure of the brain. Researchers have found that an area of the
brain called the corpus callosum is enlarged in professional musicians.
part of the brain is enlarged in musicians with absolute pitch. A person with absolute
pitch can identify or recreate a musical note without the help of a musical instrument.
Researchers also believe that the
younger a musician begins training, the greater the changes in his or her brain.
One part of the book "Musicophilia" is about people with
"The word 'synesthesia' has been around for a century, a
little bit more. It was introduced in
the eighteen nineties for people who would perhaps see colors when they heard
music. Or in whom generally, one
sensation would give rise to another sensation."
For example, one person Doctor Sacks writes about is a
musician who experiences color with every musical note. The note G minor is a yellowish color, while D
major is blue. Another person with
synesthesia sees colors, shapes, and light when she listens to music.
Modern brain imaging has helped medical experts
understand conditions like synesthesia. Brain
images show that synesthetes have activity both in the area of the brain that
sees and in another area that reacts to music.
"I think of the book as sort of a treasury of stories and
information which other people and in particular neuroscientists and others
will be able to use and make sense of. But
also, it's a fun book."
the publication of "Musicophilia", Doctor Sacks received hundreds of messages
from people with examples of the conditions he described.
A second version of the
book includes information about their cases. Doctor Sacks has once again provided his
readers with a rich exploration of the complex workings of the human mind.
SCIENCE IN THE NEWS was written by Dana Demange, who was also our
producer. I'm Barbara Klein.
And I'm Bob Doughty.
Listen again next week for more news about science, in Special English,
on the Voice of America.