The psychophysics of imagery

John C. Baird, Kathleen A Harder

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


A series of experiments considers the extent to which the interrelations among subjective magnitudes aroused by images corresponds to those for subjective magnitudes aroused by physical stimuli. In Experiment 1, 68 undergraduates typed phrases in response to graded categories regarding the imagined magnitude of lights, sounds, and smells. In Experiment 2, 5 undergraduates and, in Experiment 3, 3 graduate students then magnitude estimated the image intensity aroused by each of these stimulus phrases. In Experiments 4 and 5, the same subjects performed cross-modality matches between phrases arousing images for different attributes (light, sound, and smell). Statistical analysis indicates that estimates based on images display many of the same patterns as those based on physical stimuli. The major exception involves sequence effects, present for actual stimuli but not for images.

Original languageEnglish (US)
Pages (from-to)113-126
Number of pages14
JournalPerception and Psychophysics
Issue number1
StatePublished - Jan 2000


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