Psychology and Neuroscience Stack Exchange
Psychology and Neuroscience Stack Exchange

Questions tagged [signal-detection]

For questions concerning the area of psychophysics that deals with discernment of information-bearing stimuli from background noise or other distractions.

For questions concerning the area of psychophysics that deals with the discernment of information-bearing stimuli from background noise or other distractions.

Detection theory in psychology drew upon much of the theory of radar and its applications.

For further information, see Detection Theory.

For a canonical text written by two of its pioneers, see Signal Detection Theory and Psychophysics.

43 questions
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Calculate criterion values for each confidence level (within SDT)

Take a 2AFC task, where people also give a measure of confidence. In the framework of signal detection theory, the criterion values for each confidence level are simply additional criteria, placed on the same internal response axis as the (first…
elisa
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Is it possible to calculate d prime if no catch trials were done?

I am new to Psychology, particularly the signal detection theory (SDT). Before understanding SDT, I performed an experiment to measure what speed difference between a subject's car and the front vehicle could a subject correctly percieve. But I…
umair durrani
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how to correctly determine false alarm rate (in a specific experimental setup)

i have a specific experimental setup (at least i think so :) It's a replication and i don't know how to correctly determine the false alarm rate for the visual fields since in the article i replicate the FA calculation procedure is not explicite…
Jakub Paszulewicz
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Upwards of what d' values constitute "good" sensitivity?

In signal detection theory, d' (sensitivity) is computed in terms of z-scores, to allow comparison (subtraction) of hit rates from false alarm rates. Even so, the interpretation of the d' is not straightforward: I was not able to find any absolute…
z8080
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