Diagnostic procedures are used to identify the alterations of  biological function that can be used to diagnose mental illnesses or psychiatric disorders. Instructions: Conduct a search to identify the various diagnostic examinations, the techniques used, the purpose of the examination, and possible findings for the following procedures: Electroencephalography Computerized EEG Mapping Computerized Tomographic Scan Magnetic Resonance Imaging Positron Emission Tomography Single photon Emission Computed Tomography Please do not forget to use APA style and add references and citations.