Digital Electroencephalograph of 36 channels, 24 of monopolar them with possibilities of programming 8 two-pole ones with the possibility of monopolar connection to shape 32 channels with common reference; it(he,she) possesses 4 additional channels, 3 of two-pole them and 1 specially destined one for measurement of temperature. This makes possible to prepare for software the assemblies(montages) that are known in the traditional equipments(teams) of poligrafía in paper(role). The two-pole amplifiers and 3 two-pole additional channels, biophysicists are designed for the sensory connection or the transducción of the measurement by signs. Diagnosis in the specialities Clinical Neurophysiology Neurology Psychiatry Neurological Diseases and Psychiatric Psicofisiología Polisomnografía trans-operative Monitoring. Portability: Allows his utilization in different circumstances and conditions of operation being able to be installed inside laboratories of Neurophysiology or out of the same ones, it(he,she) turns into a suitable equipment(team) for: Rooms of intensive care Lounges of Operations Software of medical application can use the following applications: Trackwalker: Basic System of digital electroencephalography with quantitative EEG and mapeo cerebral. Dream Hunter: Sistema for studies of the dream. EP WorkStation and Mind Tracer: System for the study of Evoked Potentials related to events. TrackWalker It is a system advanced to enter the world of the digital and quantitative electroencephalography of an easy and sure way. It(He,She) provides the following advantages: Wide flexibility in the obtaining of the EEG. - record and review of the tracing of the EEG that allows the uniform evaluation of all the studies done in the laboratory. - edition of the diagnostic conclusions using Microsoft Word or WordPad. - comparison with normative information for different assemblies(montages) and functional conditions(states) in a wide range of ages. - possibility of obtaining the Electrical Cerebral Tomography for the spatial location in the brain of the generators of diverse processes, so much physiological, since(as,like) originated by disorders in the functioning of the nervous central system, the calculation of the tomography fulfils on a promised brain normalized(settled down) (Talairach's space) or an individual brain. Record of the EEG - constant record to different speeds with monopolar, two-pole assemblies(montages) or average reference. - adequacy of the sensibility for every channel or for all simultaneously. - Insertion of the changes of the functional condition(state) of the patient, of brands(marks) and commentaries. - design of multiple protocols of work of agreement to the characteristics of the patient in study. - definition of different programs of luminous stimulation. Edition of the EEG - advance and setback page to page or of constant form. - review of the tracing to different speeds with monopolar, two-pole assemblies(montages), average reference or operator laplaciano. - measurement of the frequency and extent of interesting elements of the tracing by means of cursors. - possibility of immediate location of a condition(state), brand(mark) or commentary that is wanted to evaluate. - presentation of topographic maps of extent. - selection of the valid segments for the accomplishment of the quantitative analysis of the EEG. - exportation of the tracing towards file text. Quantitative analysis of the EEG - spectral analysis of the EEG by means of Transformed Rapid of Fourier and obtaining of the Spectral Model of Band Reduces. - calculation of the Spectral Measures of Broad Band (Absolute power, Relative Power and Frequency Happens) - definition of the limits of the bands, spectral resolution and assemblies(montages) for the processing of the studies. - calculation of the Geometric Power (average energy of the EEG in all the frequencies and derivations) that diminishes