A particular challenge for reaching this aim is to find an appropriate way to capture subjective valence-related sensation for specific body regions. While it is straightforward to ask for a global pleasantness–unpleasantness or positive–negative rating as in the traditional dimensional assessments of valence (e.g., on a Likert scale), we doubt that these terms describe best what people actually experience in different body parts. To illustrate, expressions such as “my chest feels negative/unpleasant” or “my head feels positive/pleasant” sound odd.
1 Following the idea that the “wisdom” of language can help to discover the representational structure of a psychological phenomenon (e.g., Davitz,
2016; Kövecses,
2003; Oatley & Johnson-laird,
1987; Shaver et al.,
1987), we considered how people describe their positive and negative feelings in language. Emotional well-being—or lack thereof—ranging from happiness on the positive side to sadness and depression on the negative side of the valence spectrum is often expressed by means of the metaphor of weight (e.g., Hamdi,
2016; Hung et al.,
2017; Yu,
1995). Someone who is happy feels light-hearted, whereas someone who is sad feels
heavy-hearted or feels
heavy in his/her chest. Similar weight-related expressions of emotions can be found across different languages and cultures (Moradi & Mashak,
2013; Wenfeng,
2008). Do these metaphorical expressions simply reflect figurative language, or do they possibly reflect an embodied grounding of valence? Striking evidence for the latter view comes from patients suffering from depression. They often describe their emotional state with a feeling of
bodily heaviness (Barkow et al.,
2004; Fuchs & Schlimme,
2009), and antidepressant effects as
bodily lightness (or decrease in bodily heaviness, respectively) (Stocker et al.,
2019; see also van Schalkwyk et al.,
2018). Some examples of patients reporting antidepressant effects are: “I had less
heaviness in my throat and my chest”, “The
weight was gone”, “I felt happy and
light”, “All the pressure in my head just starts to feel
light and normal again” (Stocker et al.,
2019). If pleasant feelings of lightness and unpleasant feelings of heaviness can be attributed to specific body parts by patients suffering from depression, then maybe the valence of emotions is also embodied as sensations of weight in the non-clinical population. Zhao et al. (
2016) presented healthy participant a picture of a balance as priming stimulus with a heavy and a light stone on the left and right balance pans. The same illustration was then also used to present emotional words (with positive and negative emotion words instead of stones). They found that participants were faster in judging the valence of the words when weight and valence were congruent (i.e., positive-light, negative-heavy) when compared to the opposite pairing. Such an automatic coupling between weight and valence supports the view that the use of weight may not simply reflect figurative language. Specifically, Zhao et al. (
2016) concluded that the metaphorical relationship between weight and valence might be derived from bodily experiences with bodily weight and psychological weight. For example, a person may feel exhausted when holding heavy things, which would reinforce a negative mood. Also, a person feels unhappy and sad when her/his psychological burden is heavy. Moreover, happiness and pleasure are associated with the release of hormones and neurotransmitters (the so-called “happy hormones”) such as serotonin, dopamine, oxytocin, noradrenaline, and endorphins (e.g., Breuning,
2016). Some of these prepare the organism to act (e.g., dopamine and noradrenaline increase blood flow of the internal organs and muscles) and decrease pain levels during physical activity (e.g., endorphins, serotonin). Such states of increased motivation and energy help to overcome physiological and psychological barriers, and weights might appear lighter in such conditions (e.g., Farrell,
1985; Tajadura-Jiménez et al.,
2015). Thus, there might be an experiential basis for the link between sensations of bodily weight and valence. This argumentation is in line with conceptual metaphor theory, according to which people often refer to familiar, tangible, and concrete concepts (source domain) to understand and express abstract concepts (target domain) (Lakoff & Johnson,
1980; Lakoff & Kövecses,
1987). As stated earlier, emotions can be considered as somewhat abstract feelings that are difficult to express (Becker‐Weidman & Hughes,
2008; Saarni,
1999). The associations between bodily weight and valence may be an illustration of conceptual metaphors where the more concrete experience of bodily weight serves as source domain used to understand and describe the more abstract domain of emotional valence, and the mapping of these domains is grounded in specific bodily sensations (Damjanovic & Santiago,
2016; Johnson,
2015; Niedenthal et al.,
2005a). This is also in accordance with Borghi and Binkofski (
2014)’s “Words As social Tools” view, according to which both sensorimotor and linguistic experiences form the basis of abstract concepts. Given the wide and systematic use of the weight–valence association across cultures and across clinical and non-clinical populations (Moradi & Mashak,
2013; Wenfeng,
2008), we used the concept of bodily weight (lightness, heaviness) as a proxy for valence in this study. Arguably, there are also other concepts that could potentially serve this purpose, as further elaborated in the “limitations of this study” section of the discussion.