ASSESSING THE SHAPES AND SPEECH SOUNDS THAT
CONSUMERS ASSOCIATE WITH DIFFERENT KINDS
OF CHOCOLATE
MARY KIM NGO
1
and CHARLES SPENCE
Crossmodal Research Laboratory, Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK
1
Corresponding author. TEL:
001-562-985-5001; FAX: 001-562-985-8004;
EMAIL: mngo1028@gmail.com
Accepted for Publication October 5, 2011
doi:10.1111/j.1745-459X.2011.00359.x
ABSTRACT
Reliable crossmodal correspondences have been demonstrated between dark and
mint chocolates with angular shapes and sharper-sounding speech sounds on one
hand, and between milk chocolate with organic shapes and rounder-sounding
speech sounds on the other. In the present study, a panel of consumers was presented
with four different chocolates: two mints (solid and fondant), one dark and one
milk. They either tasted (Experiment 1) or simply imagined tasting (Experiment 2)
the chocolates and indicated whether the perceived flavor matched one or other of
the items (nonsense words or simple outline shapes) anchoring various line scales by
marking a point along each scale. Dark and solid mint chocolates were more
angular-shaped and associated with sharp meaningless speech sounds (e.g., “tuki”
and “takete”). Mint fondant, by contrast, was considered less angular and more
pleasant than dark or solid mints, while milk chocolate was more pleasant and
strongly associated with organic shapes and rounded speech sounds (e.g.,“lula” and
“maluma”). These results corroborate and build upon recent findings concerning
sound symbolism in the taste and flavor domain by highlighting the fact that oral-
somatosensory textural cues play an important role in determining the crossmodal
correspondences that regular consumers have for foodstuffs such as chocolate.
PRACTICAL APPLICATIONS
Whether taste or texture, or some combination of the two sensory attributes, is
responsible for the systematic associations between various chocolates and certain
angular/sharp or organic shapes and speech sounds remains unclear. The results of
the present study demonstrate that both attributes play an important role in deter-
mining consumers’ crossmodal correspondences. Thus, when conducting research
on various food qualities, these two factors should be carefully considered and/or
systematically controlled. Additionally, the fact that these results held across differ-
ent testing protocols (laboratory-based vs. online) confirms the potential utility of
internet-based food testing for quantitatively and, importantly, qualitatively
valuable/sound data collection (at least for foods that consumers are familiar with).
The results of experiments such as those reported here can, in the future, be used to
provide insights regarding the speech sounds and abstract imagery that should be
associated with specific oral-somatosensory and taste/flavor attributes in commer-
cial food products. Such results may be used to develop abstract imagery for product
packaging and/or brand names/logos that more effectively capture the shape/sound
symbolic properties of the food concerned.
Journal of Sensory Studies ISSN 0887-8250
421 Journal of Sensory Studies 26 (2011) 421–428 © 2011 Wiley Periodicals, Inc.