Naming difficulties may be rank ordered along a continuum. Items are rank ordered in terms of their ability to be named, which is correlated with their frequency. This type of picture-naming test is also useful in the examination of children with learning disabilities and the evaluation of brain-injured adults.
The Jarvik-7 heart was developed by American scientist Robert Jarvik and his mentor, Willem Kolff. In 1982, Seattle dentist Dr. Barney Clark was the first person implanted with the Jarvik-7, the first artificial heart intended to last a lifetime.
Artificial-heart patient dies. On March 23, 1983, Barney Clark dies 112 days after becoming the worldâs first recipient of a permanent artificial heart. The 61-year-old dentist spent the last four months of his life in a hospital bed at the University of Utah Medical Center in Salt Lake City, attached to a 350-pound...