We ran a pilot experiment to explore, using a new psychophysical method, the hypothesis proposed by Zietz and Werner in the ’30s, that a sound presented simultaneously with an afterimage can change its phenomenal appearance in non-synaesthetes. The method we adopted is able to directly collect and visualise the apparent changes in intensity of the afterimages, by recording observers’ interactions with a physical feedback mechanism (the paths that the observers generated by moving a cursor), without referring to verbal descriptions. These first findings support some of the most meaningful observations re- ported by Werner (1934) and Zietz (1931), according to which the colours of the after- images ‘disintegrate’ at the hearing of a low sound and ‘concentrate’ for a high sound. This relationship is particularly evident with the Yellow stimulus, where the perceived colour intensity of its afterimage seems to have a faster negative change with a low-pitched tone sound, and an increase in intensity and duration when perceived simultaneously with a soprano sound. These data are also coherent with the crossmodal correspondences be- tween both pitch and loudness in audition and lightness and brightness in vision reported in the literature.

Parovel, G., Prenassi, M., Coppola, W., Cattaruzza, S., Agostini, T. (2022). Synaesthetic Interactions between Sounds and Colour Afterimages: Revisiting Werner and Zietz’s Approach. GESTALT THEORY, 44(1-2), 161-174 [10.2478/gth-2022-0012].

Synaesthetic Interactions between Sounds and Colour Afterimages: Revisiting Werner and Zietz’s Approach

Giulia Parovel
;
2022

Abstract

We ran a pilot experiment to explore, using a new psychophysical method, the hypothesis proposed by Zietz and Werner in the ’30s, that a sound presented simultaneously with an afterimage can change its phenomenal appearance in non-synaesthetes. The method we adopted is able to directly collect and visualise the apparent changes in intensity of the afterimages, by recording observers’ interactions with a physical feedback mechanism (the paths that the observers generated by moving a cursor), without referring to verbal descriptions. These first findings support some of the most meaningful observations re- ported by Werner (1934) and Zietz (1931), according to which the colours of the after- images ‘disintegrate’ at the hearing of a low sound and ‘concentrate’ for a high sound. This relationship is particularly evident with the Yellow stimulus, where the perceived colour intensity of its afterimage seems to have a faster negative change with a low-pitched tone sound, and an increase in intensity and duration when perceived simultaneously with a soprano sound. These data are also coherent with the crossmodal correspondences be- tween both pitch and loudness in audition and lightness and brightness in vision reported in the literature.
Parovel, G., Prenassi, M., Coppola, W., Cattaruzza, S., Agostini, T. (2022). Synaesthetic Interactions between Sounds and Colour Afterimages: Revisiting Werner and Zietz’s Approach. GESTALT THEORY, 44(1-2), 161-174 [10.2478/gth-2022-0012].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1218694
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo