Adaptation-level Theory: An Experimental and Systematic Approach to Behavior

adaptation level afterimage American Psychological Association anchor areas arithmetic mean assimilation average background stimuli behavior changes chromatic cognitive concept constant context contrast contrast effects curves depends determined dimensions effects ellipses Equation error experiment experimental factors figural aftereffects focal frequency function given gray greater Guilford Helson homeostasis illumination individual influence intensity interactions interval judged judgments kinesthesis learning less light luminance magnitude ment method modalities negative neutral norms observed organism perceived percent permission phenomena phenomenology physiological pleasant pooling position predicted presented psychology psychophysical psychophysical methods quantitative range rating scale ratio receptors reflectance regarded reinforcement relations residual responses saturation sensory adaptation series stimuli sets of stimuli shifts shown situations sources spatial standard stim supraliminal Table temporal test Ss theory threshold tion tones types values variables visual weighted geometric mean weighted mean yield zero