Eating with our ears: assessing the importance of the sounds of consumption on our perception and enjoyment of multisensory flavour experiences
TL;DR: A growing body of research now shows that by synchronizing eating sounds with the act of consumption, one can change a person's experience of what they think that they are eating.
Abstract: Sound is the forgotten flavour sense. You can tell a lot about the texture of a food—think crispy, crunchy, and crackly—from the mastication sounds heard while biting and chewing. The latest techniques from the field of cognitive neuroscience are revolutionizing our understanding of just how important what we hear is to our experience and enjoyment of food and drink. A growing body of research now shows that by synchronizing eating sounds with the act of consumption, one can change a person’s experience of what they think that they are eating.
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TL;DR: This Perspective explores the contributions of distinct senses to the authors' perception of food and the growing realization that the same rules of multisensory integration that have been thoroughly explored in interactions between audition, vision, and touch may also explain the combination of the (admittedly harder to study) flavor senses.
279 citations
Cites background from "Eating with our ears: assessing the..."
...It is almost 60 years since researchers first started thinking about the putative role of audition in the experience of food and drink (see Spence, 2015, for a review)....
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...Hearing always comes at the bottom of the list when people—whether they be professional sensory scientists or regular consumers—are asked to rank the relative importance of each of the senses to flavor perception (see Spence, 2015 on this point)....
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...It is important to remember that disconfirmed expectations can occur in both the sensory-discriminative and hedonic domains (Zellner et al., 2004; see Piqueras-Fiszman and Spence, 2015 for a review)....
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...In the intervening years, a large body of sensory science research has been published, demonstrating that auditory cues do indeed play an important role in the multisensory perception of food attributes such as crispy, crackly, crunchy, carbonated, and even creamy (see Spence, 2015)....
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...…(that hasmost typically been studied in the laboratory), in the real world, cognitive factors such as branding, labeling, packaging, and pricing also play an important role in determining our sensory-discriminative and hedonic expectations (see Piqueras-Fiszman and Spence, 2015 for a review)....
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TL;DR: In this article, a large body of laboratory research has demonstrated that changing the hue or intensity/saturation of the colour of food and beverage items can exert a sometimes dramatic impact on the expectations, and hence on the subsequent experiences, of consumers.
Abstract: Colour is the single most important product-intrinsic sensory cue when it comes to setting people’s expectations regarding the likely taste and flavour of food and drink. To date, a large body of laboratory research has demonstrated that changing the hue or intensity/saturation of the colour of food and beverage items can exert a sometimes dramatic impact on the expectations, and hence on the subsequent experiences, of consumers (or participants in the lab). However, should the colour not match the taste, then the result may well be a negatively valenced disconfirmation of expectation. Food colours can have rather different meanings and hence give rise to differing expectations, in different age groups, not to mention in different cultures. Genetic differences, such as in a person’s taster status, can also modulate the psychological impact of food colour on flavour perception. By gaining a better understanding of the sensory and hedonic expectations elicited by food colour in different groups of individuals, researchers are coming to understand more about why it is that what we see modulates the multisensory perception of flavour, as well as our appetitive and avoidance-related food behaviours.
250 citations
Cites background from "Eating with our ears: assessing the..."
...The smell and aroma of food and drink are clearly important here, as are, on occasion, the sounds of food preparation (see [22], for a review)....
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01 Nov 2017-International Journal of Human-computer Studies \/ International Journal of Man-machine Studies
TL;DR: This review, with the focus squarely on the domain of Human-Computer Interaction (HCI), summarizes the state-of-the-art in the area and suggests that mixed reality solutions are currently the most plausible as far as delivering flavour experiences digitally is concerned.
Abstract: Review paper assesses the possibilities and pitfalls around the digitization of the chemical senses.Possibilities include delivery of ambient fragrance, digital flavour experiences.We highlight how the majority of the attempts at successful commercialization have failed, often in the face of consumer ambivalence over the perceived benefits/utility.Ultimately, we suggest that mixed reality solutions are currently the most plausible as far as delivering (or rather modulating) flavour experiences digitally is concerned.The identify key problems with digital fragrance delivery related to attention and attribution (i.e., being aware of stimulation and believing that it is doing the work). Many people are understandably excited by the suggestion that the chemical senses can be digitized; be it to deliver ambient fragrances (e.g., in virtual reality or health-related applications), or else to transmit flavour experiences via the internet. However, to date, progress in this area has been surprisingly slow. Furthermore, the majority of the attempts at successful commercialization have failed, often in the face of consumer ambivalence over the perceived benefits/utility. In this review, with the focus squarely on the domain of Human-Computer Interaction (HCI), we summarize the state-of-the-art in the area. We highlight the key possibilities and pitfalls as far as stimulating the so-called lower senses of taste, smell, and the trigeminal system are concerned. Ultimately, we suggest that mixed reality solutions are currently the most plausible as far as delivering (or rather modulating) flavour experiences digitally is concerned. The key problems with digital fragrance delivery are related to attention and attribution. People often fail to detect fragrances when they are concentrating on something else; And even when they detect that their chemical senses have been stimulated, there is always a danger that they attribute their experience (e.g., pleasure) to one of the other senses this is what we call the fundamental attribution error. We conclude with an outlook on digitizing the chemical senses and summarize a set of open-ended questions that the HCI community has to address in future explorations of smell and taste as interaction modalities
97 citations
TL;DR: The latest evidence concerning the various ways in which what the authors hear can influence what they taste leads to the growing realization that the crossmodal influences of music and noise on food perception and consumer behaviour may have some important if, as yet, unrecognized implications for public health.
Abstract: Food product-extrinsic sounds (i.e., those auditory stimuli that are not linked directly to a food or beverage product, or its packaging) have been shown to exert a significant influence over various aspects of food perception and consumer behaviour, often operating outside of conscious awareness. In this review, we summarise the latest evidence concerning the various ways in which what we hear can influence what we taste. According to one line of empirical research, background noise interferes with tasting, due to attentional distraction. A separate body of marketing-relevant research demonstrates that music can be used to bias consumers' food perception, judgments, and purchasing/consumption behaviour in various ways. Some of these effects appear to be driven by the arousal elicited by loud music as well as the entrainment of people's behaviour to the musical beat. However, semantic priming effects linked to the type and style of music are also relevant. Another route by which music influences food perception comes from the observation that our liking/preference for the music that we happen to be listening to carries over to influence our hedonic judgments of what we are tasting. A final route by which hearing influences tasting relates to the emerging field of 'sonic seasoning'. A developing body of research now demonstrates that people often rate tasting experiences differently when listening to soundtracks that have been designed to be (or are chosen because they are) congruent with specific flavour experiences (e.g., when compared to when listening to other soundtracks, or else when tasting in silence). Taken together, such results lead to the growing realization that the crossmodal influences of music and noise on food perception and consumer behaviour may have some important if, as yet, unrecognized implications for public health.
91 citations
TL;DR: A new framework of multisensory flavour integration is proposed focusing not on the food-intrinsic/extrinsics divide, but rather on whether the sensory information is perceived to originate from within or outside the body.
Abstract: When it comes to eating and drinking, multiple factors from diverse sensory modalities have been shown to influence multisensory flavour perception and liking. These factors have heretofore been strictly divided into either those that are intrinsic to the food itself (e.g., food colour, aroma, texture), or those that are extrinsic to it (e.g., related to the packaging, receptacle or external environment). Given the obvious public health need for sugar reduction, the present review aims to compare the relative influences of product-intrinsic and product-extrinsic factors on the perception of sweetness. Evidence of intrinsic and extrinsic sensory influences on sweetness are reviewed. Thereafter, we take a cognitive neuroscience perspective and evaluate how differences may occur in the way that food-intrinsic and extrinsic information become integrated with sweetness perception. Based on recent neuroscientific evidence, we propose a new framework of multisensory flavour integration focusing not on the food-intrinsic/extrinsic divide, but rather on whether the sensory information is perceived to originate from within or outside the body. This framework leads to a discussion on the combinability of intrinsic and extrinsic influences, where we refer to some existing examples and address potential theoretical limitations. To conclude, we provide recommendations to those in the food industry and propose directions for future research relating to the need for long-term studies and understanding of individual differences.
75 citations
Cites background from "Eating with our ears: assessing the..."
..., the sounds that we hear when eating) can contribute to our perception of crispness, freshness and pleasantness for foods such as crisps, biscuits and fruit [70–73] (see Reference [74] for a review)....
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References
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01 Dec 1978
TL;DR: The article focuses on the neural basis of orofacial touch, temperature, and pain and gives particular emphasis to the latter, because pain commonly occurs in the skin, teeth, muscles, joint, and other tissues of the oroFacial region and humans can have long-term suffering from several pain states or syndromes in the face and mouth.
Abstract: This article provides an outline of the neural mechanisms that are involved in the somatosensory and motor functions of the face and mouth and, in a more limited sense, of the pharynx and larynx. The article focuses on the neural basis of orofacial touch, temperature, and pain and gives particular emphasis to the latter, because pain commonly occurs in the skin, teeth, muscles, joint, and other tissues of the orofacial region and humans can have long-term suffering from several pain states or syndromes in the face and mouth. Particular attention is also given to the neural processes underlying the many reflex and other motor functions manifested in the orofacial region, especially those related to mastication (chewing), swallowing, and associated neuromuscular functions. Few details are provided of some other important functions of the face and mouth (e.g., smell, taste, speech).
517 citations
TL;DR: This work investigated the relation between intention, choice, and introspection, and found that participants failed to notice conspicuous mismatches between their intended choice and the outcome they were presented with, while nevertheless offering introspectively derived reasons for why they chose the way they did.
Abstract: A fundamental assumption of theories of decision-making is that we detect mismatches between intention and outcome, adjust our behavior in the face of error, and adapt to changing circumstances. Is this always the case? We investigated the relation between intention, choice, and introspection. Participants made choices between presented face pairs on the basis of attractiveness, while we covertly manipulated the relationship between choice and outcome that they experienced. Participants failed to notice conspicuous mismatches between their intended choice and the outcome they were presented with, while nevertheless offering introspectively derived reasons for why they chose the way they did. We call this effect choice blindness.
458 citations
TL;DR: This paper reviewed how all these sensations interact, both on a perceptual and a physical level, and discussed the resulting impact each has on flavor ratings, and the practical implications of these interactions for sensory evaluation are discussed.
418 citations
TL;DR: This paper reviewed the empirical literature concerning the important question of whether or not food color influences taste and flavor perception in humans and argued that this is, at least in part, due to the fact that many researchers have failed to distinguish between two qualitatively distinct research questions.
Abstract: In this paper, we review the empirical literature concerning the important question of whether or not food color influences taste and flavor perception in humans. Although a superficial reading of the literature on this topic would appear to give a somewhat mixed answer, we argue that this is, at least in part, due to the fact that many researchers have failed to distinguish between two qualitatively distinct research questions. The first concerns the role that food coloring plays in the perception of the intensity of a particular flavor (e.g., strawberry, banana, etc.) or taste attribute (e.g., sweetness, saltiness, etc.). The second concerns the role that food coloring plays in the perception of flavor identity. The empirical evidence regarding the first question is currently rather ambiguous. While some researchers have reported a significant crossmodal effect of changing the intensity of a food or drink’s coloring on people’s judgments of taste or flavor intensity, many others have failed to demonstrate any such effect. By contrast, the research findings concerning the second question clearly support the view that people’s judgments of flavor identity are often affected by the changing of a food or drink’s color (be it appropriate, inappropriate, or absent). We discuss the possible mechanisms underlying these crossmodal effects and suggest some of the key directions for future research in order to move our understanding in this area forward.
415 citations