History of the scientific standards of quantitative electroencephalography normative databases

Normative reference databases serve a vital and important function in modern clinical science and patient evaluation. There are numerous clinical normative databases that aid in the evaluation of a wide range of clinical disorders. For example, blood constituent normative databases, magnetic resonance imaging, functional magnetic resonance imaging, and positron emission tomography normative databases, ocular and retinal normative databases, blood pressure normative databases, nerve conduction velocity normative databases, postural databases, bone density normative databases, ultrasound normative databases, genetic normative databases and motor development normative databases, to name a few. A comprehensive survey of existing clinical normative databases can be obtained by searching the National Library of Medicine’s database using the search terms “Normative databases” at: http://www.ncbi.nlm.nih.gov/sites/entrez.