Biomedical subjects

Robert G Turner

Publications and source records attributed to Robert G Turner.

3 recordsLinked to original sources

PubMed2004

Masking redux. I: An optimized masking method.

This is the first in a series of two papers on masking. The objective of these papers is to develop a masking protocol that provides valid measures of threshold and is, in general, faster than the plateau method. In this paper, a masking method is developed that can replace the traditional plateau method in most masking situations. This new method is optimized to require fewer masking levels than the plateau method. As a result, it can be significantly faster than the plateau method. There are some masking situations in which this optimized method cannot be used. This limitation will be evaluated in the second paper and an alternate masking strategy provided for use when the optimized method is not appropriate.

Audiometry↗

PubMed2004

Masking redux. II: A recommended masking protocol.

This is the second in a series of two papers on masking. The objective of these papers is to develop a masking protocol that provides valid measures of threshold and is, in general, faster than the plateau method. In the first paper, a masking method was presented that can replace the traditional plateau method in most masking situations. This new method is optimized to require fewer masking levels than the plateau method. As a result, this optimized method is faster, sometimes significantly, than the plateau method. This paper evaluates the optimized method and compares the optimized method to the traditional plateau method. This paper identifies specific masking situations in which the optimized method is not appropriate. A variation on the plateau method is described. When combined with the optimized method, these two masking methods constitute a recommended masking protocol that can be used in all masking situations.

Audiometry↗

PubMed2003

Double checking the cross-check principle.

The cross-check principle was proposed by Jerger and Hayes over 20 years ago. Actually, the cross-check principle consists of a concept and a specific test protocol. The concept, that one test result confirms another test result, is still in use. Their specific protocol is essentially forgotten. The cross-check protocol they described, however, differs from more traditional test protocols. From the design of their cross-check protocol we can extract two unique testing strategies. The first strategy requires agreement between both tests before a decision can be made. This strategy can significantly improve testing performance; however, the "cost" of this strategy is a population of individuals for whom no decision is possible because the two tests disagree. The cross-check protocol uses a third test when the first two tests disagree. Essentially, the cross-check protocol employs an intermediate criterion, the second unusual strategy. Somewhat surprisingly, this intermediate criterion has the ability to simultaneously increase protocol hit rate and decrease protocol false alarm rate relative that of the individual tests in the protocol. The more traditional protocol criteria cannot do this. Each strategy offers some interesting and important advantages and should be considered by audiologists when using multiple tests.

Audiology↗