Cross-Modal Correspondence Between Speech Sound and Visual Shape Influencing Perceptual Representation of Shape: the Role of Articulation and Pitch
| Autor: | Hyun Woong Kim, Hosung Nam, Chai-Youn Kim, Yuna Kwak |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Cognitive Neuroscience Speech recognition media_common.quotation_subject Bouba/kiki effect Experimental and Cognitive Psychology Stimulus (physiology) Speech Acoustics 050105 experimental psychology Young Adult 03 medical and health sciences 0302 clinical medicine Stimulus modality Phonetics Vowel Perception Humans 0501 psychology and cognitive sciences Pitch Perception media_common Two-alternative forced choice 05 social sciences Sensory Systems Ophthalmology Sound Modal Acoustic Stimulation Visual Perception Female Computer Vision and Pattern Recognition Psychology 030217 neurology & neurosurgery |
| Zdroj: | Multisensory Research. 33:569-598 |
| ISSN: | 2213-4808 2213-4794 |
| Popis: | Cross-modal correspondence is the tendency to systematically map stimulus features across sensory modalities. The current study explored cross-modal correspondence between speech sound and shape (Experiment 1), and whether such association can influence shape representation (Experiment 2). For the purpose of closely examining the role of the two factors — articulation and pitch — combined in speech acoustics, we generated two sets of 25 vowel stimuli — pitch-varying and pitch-constant sets. Both sets were generated by manipulating articulation — frontness and height of the tongue body’s positions — but differed in terms of whether pitch varied among the sounds within the same set. In Experiment 1, participants made a forced choice between a round and a spiky shape to indicate the shape better associated with each sound. Results showed that shape choice was modulated according to both articulation and pitch, and we therefore concluded that both factors play significant roles in sound–shape correspondence. In Experiment 2, participants reported their subjective experience of shape accompanied by vowel sounds by adjusting an ambiguous shape in the response display. We found that sound–shape correspondence exerts an effect on shape representation by modulating audiovisual interaction, but only in the case of pitch-varying sounds. Therefore, pitch information within vowel acoustics plays the leading role in sound–shape correspondence influencing shape representation. Taken together, our results suggest the importance of teasing apart the roles of articulation and pitch for understanding sound–shape correspondence. |
| Databáze: | OpenAIRE |
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