Generalization gradients around SsD following errorless discrimination learning

Abstract

Four pigeons were shaped by an errorless procedure to discriminate a blank key as SD and a key lit by 576 nm as SsD, and then discrimination training continued on a MULT RI 1 min, EXT schedule before generalization tests were conducted on wavelength and intensity dimensions. Generalization gradients along wavelength were flat at zero response rate, while intensity generalization gradients were sloped to high response rates at low intensities. Implications for defining generalization of inhibition were drawn.