[ diagnostic apparatus, for laboratory or research use, using sound stimuli for diagnosing a state of a central nervous system of a subject independent of a state of mind; diagnostic apparatus, for laboratory or research use, using sound stimuli for diagnosing psychiatric disorders like schizophrenia, autism, ADHD, Asperger's syndrome, bipolar disease, depressive disorders and other related psychiatric disorders and diseases; diagnostic apparatus, for laboratory or research use, using sound s...