Arvid Kappas — Emotion Research

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What are emotions?

Picture
Duchenne de Boulogne (1801 - 1875)
What a silly question! Everybody knows what emotions are - or do they? As it turns out, emotion science has a history of arguing about what it is that it deals with. However, the situation is not so bad - over time a consensus is emerging that involves some key aspects of what emotions, as studied by scientific research, are. In my opinion much of the discussion and debate is of historical interest and not of practical significance. However, important emotion researchers still differ with regard to what they feel is part of emotion and what not, what the functions of emotions are, and other aspects (see, Izard, 2010; Widen & Russell, 2010).

In everyday language, emotions are often seen as synonymous for feelings. However, today, most scientists will also look for changes in the activity of the body, including the brain. Some of these bodily changes can be seen, such as a blush, or a smile, and others cannot, such as a change in blood pressure. Often researchers will also emphasize that emotions cause changes in action tendencies, for example getting ready to move away, or explicit actions, such as hugging someone. These different aspects of emotions are also often referred to as components of emotional reactions. Some researchers in the 20th century believed that emotions are packages or programs that would lead to very stereotypical changes, in the face, in other parts of the body, and in how we feel. However, now that much empirical research has been collected, it appears that the components are only loosely connected. When researchers try to measure emotions, they will assess more than one component.

In scientific terms, emotion is a construct. In using constructs, we give a single name to a bunch of related processes because it facilitates talking about them. Yet, when we look very closely to distinguish one construct from another, it becomes obvious that it is not easy to clearly define the boundaries of such things. This is not unique to emotion, but consider terms such as intelligence, democracy, market, family, or impressionism. Not only does it take more than a paragraph to define such a complex construct, our understanding is in always in flux as new findings appear and scientific exchanges lead to a better understanding of the phenomena we look at.

Emotion, motivation, and cognition are three psychological terms that relate in interesting ways to one another. It is not so easy to separate them in the brain, based on what we have learned in the last decades of neuroscience research. It becomes important to define such constructs when one actually wants to do something with them - for example, building artificial systems are often associated with the terms cognition and intelligence (do not get me started on that one), but rarely with emotion and motivation. And yet, there is an increasing interest in implementing emotions in machines. So what does that mean? The capacity to classify nonverbal behavior in humans? Express emotions in motions and via faces and sounds? Empathy? Should machines feel something? So clearly, it is critical to be straight regarding what somebody refers to when they say that a particular system, say a robot, should have emotions. Or somebody else who says that robots could never have emotions. 

In Kappas (2013) I have stated: "Emotions are evolved systems of intra- and interpersonal processes that are regulatory in nature, dealing mostly with issues of personal or social concern." - this sentence is densely packed and refers to many different aspects of the causes and consequences of emotions. If you are curious, I invite you to read the paper here.

Some take-home messages:
  • feelings are not emotions
  • emotions have biological and cultural determinants
  • emotions have evolutionary benefits for the species
  • language and culture influence how we perceive our feelings
  • many emotional processes are social in how they come about, how they manifest, and in their effects

References
Izard, C. E. (2010). The many meanings/aspects of emotion: Emotion definitions, functions, activation, and regulation. Emotion Review, 2, 363–370.
Kappas, A. (2013). Social regulation of emotion: Messy layers. Frontiers in Psychology, 4, 51. doi: 10.3389/fpsyg.2013.00051.
Widen, S.C. & Russell, J.A. (2010a). Descriptive and Prescriptive Definitions of Emotion. Emotion Review, 2, 377-378.
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  • Home
  • About
  • Reflections On Emotion Science Blog
  • Emotions
    • What are emotions?
    • How can emotions be measured?
  • Links
    • Arvid Kappas pages
    • Emotion researchers
    • Scientific journals
    • What to read for an introduction to emotion science
    • Blogs
  • Guest Book
  • Open positions
  • Data Privacy