Bendor and Wang (2005), when presenting a complex tone with a 182 Hz fundamental frequency to a marmoset, found a neuron that responded to a 182-Hz tone when presented alone but not when any of the harmonics were presented alone. The neuron that responded just to 182-Hz tone is an example of a(n) _____ neuron.
a. plasticity
b. amplitude
c. pitch
d. spectral
