TY - JOUR PY - 1993// TI - Contextual processing of multidimensional and unidimensional auditory stimuli JO - Journal of experimental psychology: human perception and performance A1 - Marks, L. E. SP - 227 EP - 249 VL - 19 IS - 2 N2 - Stimulus context (the distribution of stimulus values) can strongly affect both perception and judgment. In 14 experiments, the method of magnitude estimation revealed 2 fundamentally different kinds of context effect in loudness. An assimilative effect dominated when stimuli varied unidimensionally (in intensity only). But a contrasting, or adaptation-like, effect dominated when stimuli varied multidimensionally (in frequency and intensity). In Experiment 15, direct loudness comparison revealed a potent, adaptational process specific to the signal frequency. Taken together, these and other results are compatible with the view that loudness perception and judgment reflect the net outcome of 2 different contextual processes: a relatively early (though probably not peripheral) process of perceptual adaptation and a later process of response-dependent assimilation.

Language: en

LA - en SN - 0096-1523 UR - http://dx.doi.org/ ID - ref1 ER -