TFS sensitivity is measured by a standard staircase procedure that converts to d-prime.

Evidence

The TFS1 test (Moore and Sek 2009 , 2012 ) was used to measure participants’ temporal fine structure (TFS) sensitivity. The test was carried out using the TFS1 test software ( http://​hearing.​psychol.​cam.​ac.​uk/​ ) and was based on the standard TFS1 test protocol. The task was performed on the participant’s better ear as determined by the audiogram. One practice run was given prior to the test. If participants could perform the task and attain a threshold they were given three real runs. For some participants the staircase procedure saturated (reached the ‘easy’ limit). Instead of receiving a threshold, these participants received a percent-correct score obtained from 40 trials of the 2AFC task at the easiest level of the staircase. Both the threshold and the percent-correct scores were converted to a d’ sensitivity measure using the method outlined by Hopkins and Moore ( 2007 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 4162

Categorization

• DEFINE: Explains what the TFS1 test is and how temporal fine structure sensitivity gets quantified.