Stimulus Generalization as Signal Detection in Pigeons

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Science  17 Nov 1967:
Vol. 158, Issue 3803, pp. 940-941
DOI: 10.1126/science.158.3803.940


Pigeons that were reinforced for pecking at a single-wavelength responded to nearby wavelengths with lower rates. Response rates indicated the pigeons' certainty that the reinforced stimulus was present. The ratings yielded receiver operating characteristic functions that approximated straight lines on a double probability plot.