Anchor effects on the discrimination of pitch |
| |
Authors: | Robert Adamson |
| |
Affiliation: | 1. Florida Atlantic University, 33432, Boca Raton, Florida
|
| |
Abstract: | Two experiments considered the effects of introducing an extreme stimulus (anchor) upon the differential perception of tonal stimuli. In the first experiment, in which Ss rated series stimuli from 1,000 to 2,000 Hz or from 2,000 to 3,000 Hz, the presence of a 750-Hz anchor apparently disrupted discrimination. A second experiment involved testing for a difference threshold (method of limits) in which the standard was a tone of 1,500 Hz. The uncertainty interval (Iu) was larger when the interval between paired stimulus presentations was filled with a 750-Hz tone, again suggesting that discrimination is impaired by the introduction of a low-frequency anchor. Results are discussed in terms of theories relating range extent and discriminability. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|