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A PEAK SHIFT ON A LINE‐TILT CONTINUUM 1
Author(s) -
Bloomfield T. M.
Publication year - 1967
Publication title -
journal of the experimental analysis of behavior
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 61
eISSN - 1938-3711
pISSN - 0022-5002
DOI - 10.1901/jeab.1967.10-361
Subject(s) - generality , generalization , line (geometry) , tilt (camera) , mathematics , geometry , psychology , physics , communication , combinatorics , mathematical analysis , psychotherapist
Pigeons were trained to discriminate the presence or absence of a vertical line, and their performance on a subsequent generalization test was compared with that of other pigeons trained to discriminate a vertical from a 45° line. On the generalization gradient after discrimination training, the presence/absence discrimination group showed a peak at 0° (vertical) while the peak for the 0°/45° discrimination group shifted from 0° in a direction away from the 45° line. The results, discussed in connection with a recent suggestion about the role of color in the peak‐shift effect, are interpreted as supporting the generality of the phenomenon.