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The terminology used in neuroscience in general, and neuropsychology in particular, can often be complex and confusing. Below is a glossary of the neuroscientific terms used in this text. It is not intended as a comprehensive glossary of such terminology, given that there are many issues of neuroscientific interest not covered in the present volume. For more information, see the general neuropsychology and neuroanatomy texts referred to at the end of this section.
A few general principles:
(i) The prefix “a-” refers to “loss of”. Thus, agraphia means loss of writing ability.
(ii) The prefix “dys-” is used in two ways. It may refer to a “partial loss of”, such that a mild agraphia might be described as a dysgraphia. Alternatively, the “dys-” prefix refers to a developmental (congenital) disorder, as in the case of developmental dyslexia.
(iii) Other commonly used prefixes are:
“hemi-” (half)
“quad-” (quarter)
“para-” (next to, or similar to)
“pre-” (in front of)