Task: Is there a faint bright patch in the center of the noise?
Signal + Noise
Noise Only
Trial 0
Press Present Stimulus to begin
Keyboard: Space present Y yes N no
Performance
Respond "Yes"
Respond "No"
Signal
0Hit
0Miss
Noise
0False Alarm
0Correct Reject
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Hit Rate
—
FA Rate
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d'
—
Criterion (c)
Formulas (log-linear correction): HR=(H+0.5)/(H+M+1)FAR=(FA+0.5)/(FA+CR+1) d'=z(HR)-z(FAR)c=-0.5*[z(HR)+z(FAR)] Raw rates shown; corrected rates used for d' and c