抄録
Schouten's temporal theory is revised by altering time intervals between peaks of fine structure waveform taken previously by Ritsma and Engel, and as a concrete model of the “revised fine structure theory” the interspike interval distribution of a mathematical model for firings is numerically investigated. It is shown that the “revised fine structure theory” is phase-insensitive. Hence, the chief objection against the fine structure theory on “phase-fine-structure problem” lodged by the majority of auditory investigators is unreasonable. Moreover, a new question in the fine structure theory including in most recent theories is raised.