Functional Near-infrared Spectroscopy in Unconscious Patients

"fNIRS will be compared to evoked potentials in an experimental group consisting of unconscious neuro-intensive care patients and in a control group consisting of healthy, conscious subjects.~To compare fNIRS with evoked potentials there are two test phases:~1. The cerebral response to a somatosensory stimulus (peripheral nerve stimulation) is measured by fNIRS and SSEP~2. The cerebral response to an auditory stimulus is measured by fNIRS and AEP"