ABSTRACT
In this chapter, the author tries to concentrate the most relevant neurological diseases, in order to offer the clinical neuroscientist a summarized picture of present knowledge in this field. The main types of EEG abnormalities that can be observed are: asymmetry, with depression of voltage on the damaged area, the presence of a slow wave focus, and/or the presence of spikes. VERs to flashes and to a checkerboard pattern are characterized by asymmetries between left and right homologous derivations. Cerebrovascular lesions of the brain stem may be detected and localized by the recording of brain-stem auditory evoked responses. At present, there are some neurometric procedures based on the analysis of the EEG and the ERs that seem to have greater accuracy in the detection of cerebrovascular lesions than EEG visual interpretation. Middle and long latency components may be absent or depressed in cortical temporal lesions.
