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Does this look a bit familiar?
The "peak shift" of the Hanson experiment might remind you of the "utility curve" from the signal detection slide show.
If the positive and negative signals overlap, the most "useful" signal may not be directly over the positive signal, but shifted away from the negative signal.
And as you saw in the slide show, increasing the danger of confusing
the signals (for example by increasing the penalty for missed detection)
causes the peak to shift even further away.
What does the "peak shift" have to do
with animals making decisions out in the real world?
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