The title of this book may at first appear to be somewhat restrictive in
its use of terminology. However, this is far from the intention of the
writer; on the contrary, the following chapters seek to reflect a
departure from the traditional segmentally orientated approach to this
type of disability. Indeed one reason why the book has been written is
the sense of frustration arising out of the largely ineffectual static
and structural methodology of remedial work. Alternative titles could
have been Disorders of Speech Production, or Neurogenic Speech
Disorders, but neither would have encapsulated the essence of the book.
Much of the recent research in the neurophysiology of motor control and
also in the field of neurolinguistics has been concerned with ways in
which intention and planning of movement is effected. Such models are
still in their infancy, but it seems the potential value of their
application to speech is considerable. In the case of verbal dysp'taxia,
for example, we have long since in rather vague terms described it as a
disorder of organization and programming without ever stating exactly
what may be disorganized or not properly planned. This book does not
provide the answer for as yet there is insufficient data on which to
work so that formulated theories may be tested and further defined. But
as we move from speculative guess-work towards established fact so the
likelihood grows of providing more positive help for those who suffer
these drastic limitations in communication.