A training tool for training and assessing one or more auditory processing, phonological awareness, phonological processing and reading skills of an individual is provided. Cold water is injected through a pipe into the inlet bushing. There are two adjacent electrodes that protrude through the sloped front face of the device. Also disclosed is a method of treating a TNF-alpha related disease andor disorder using such a compound. The processor is also configured to assign intensities to image pixels based on the measured intensities of light.