Signal Detection Theory and Psychophysics

Acoust alternative analysis approximately assumed assumption auditory average bandwidth Chapter choice components conditional probability consider constant correct responses critical band decibels decision criteria decision rule decision theory density function detection theory detector determine discussed distribution envelope detector equal variance equation estimate example experimental false-alarm probability false-alarm proportion filter forced-choice procedure Gaussian given graph h₁ high-threshold theory hypothesis increase independent likelihood ratio mean measure monotonically normal normal distributions observation interval observer's obtained occurs optimal P(H₁ parameters pedestal posteriori probability predictions presented priori probability probability density problem Psychol psychometric function psychophysical random variables rating procedure response bias response criterion ROC curve sample space scale sensitivity sensory events sensory threshold shows signal detectability signal frequency signal intensity signal level signal plus noise sinusoidal slope standard deviation statistical stimulus Swets threshold theory tion trials two-state theory waveform yes-no