CATALYTIC CONVERTER FAILURES: If a catalytic converter needs replacing, one of the problems below most likely contributed to its failure. Engine Tune-Up Required. A number of problems could occur to the catalytic converter as the result of an engine that is out of tune.
View Full Document. - Habituation : refers to gradual reduction in the strength of a response due to repetitive stimulation.
When the device is switched on, the electrodes deliver high frequency stimulation to the targeted area. This stimulation changes some of the electrical signals in the brain that cause the symptoms of Parkinsonâs. Deep brain stimulation is a ânon-destructiveâ type of surgery. This means that it doesnât destroy any part of the brain. Deep brain stimulation is also reversible in many cases, if no damage occurs during surgery. So, if it isnât successful, the system can be switched off, or removed if necessary. This is different to lesioning surgery, which does cause permanent damage to cells in a target area of the brain.