Print PDF. Encoding specificity refers to Endel Tulvingâs notion that in order to successfully retrieve something from memory there must be a match between how information is originally encoded and how it is available when being retrieved from memory.
A case of shingles can last for up to a few weeks or more. The early symptoms include pain, itching, tingling, or a burning sensation at one location on the body, such as one side of the waist or face. A few days after these symptoms begin, the skin on the afflicted body part develops fluid-filled blisters.
In this case, the nerve involvement causes pain and extreme sensitivity, but the rash just never shows up. Usually with shingles, once the pain sets in, it can last for up to three days before the rash appears. Sometimes this period of pain before breakout lasts longer  the severe pain associated with shingles can continue for weeks, even months, before there's a rash.