Affective synesthesia: Extracting emotion space from simple perceptual stimuli

Several experiments and reanalyses of archival data were performed in which sets of common emotions were mapped onto visual and auditory perceptual stimuli of varying degrees of complexity. Subjects showed reliability across several different experimental paradigms and diverse stimulus sets. Furthermore, the results were reducible to a two-dimensional emotion space of valence and activity after the work of Osgood, Succi, and Tannenbaum (1957). The perceptual locus of an aesthetic stimulus in this two-dimensional space is hypothesized to provide a first approximation to how the synesthetic qualities of a percept provide a basis for emotional responses to such stimuli. More generally, this direct mapping of percept onto emotion provides an interesting conundrum for theories of emotion research.