ABSTRACT

Research presented here examines effects of perceptual and non-perceptual information on categorization as a function of perceptual properties of presented information. In Experiment 1, triads of perceptually-rich and perceptually impoverished stimuli were calibrated to equate discriminability of both kinds of stimuli. In Experiment 2, participants were presented with categorization task under two conditions, one, in which stimuli were not labeled and another, in which linguistic labels were provided. In the first condition, participants relied solely on perceptual information, and there was no difference between perceptually-rich and perceptually-impoverished stimuli. However, in the second condition, where linguistic labels were provided, there were dramatic differences across different stimuli types: perceptually-impoverished stimuli elicited mostly label-based responses, whereas perceptually-rich stimuli elicited mostly perceptually-based responses.