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General Commentary ARTICLE

Front. Psychol., 21 August 2017 | https://doi.org/10.3389/fpsyg.2017.01414

Commentary: Primary Emotional Systems and Personality: An Evolutionary Perspective

  • 1Institute for Positive Psychology and Education, Australian Catholic University, Sydney, NSW, Australia
  • 2Department of Clinical and Social Sciences in Psychology, University of Rochester, Rochester, NY, United States

A commentary on
Primary Emotional Systems and Personality: An Evolutionary Perspective

by Montag, C., and Panksepp, J. (2017). Front. Psychol. 8:464. doi: 10.3389/fpsyg.2017.00464

Recent decades have seen growing consensus about the “Big Five” or “Five-Factor” model as a descriptive taxonomy of personality traits (John et al., 2008; McCrae and Costa, 2008). Rather than representing any particular theory, the Big Five traits were identified in factor-analytic investigations of people's descriptions of themselves and others. Having achieved broad agreement for how to describe phenotypic personality traits, researchers have recently intensified efforts on developing explanations for the emergence and functions of the Big Five (e.g., see Fajkowska and DeYoung, 2015).

Personality neuroscience is central to this project, as individual differences in the operation of brain systems, especially emotional systems, have long been a suspected source from which personality traits emerge (e.g., Eysenck, 1967; Gray, 1982; Depue and Collins, 1999; Cloninger, 2000). Montag and Panksepp (M&P) contribute to this endeavor by linking the Big Five to a suite of primary emotional systems (Montag and Panksepp, 2017). Although there are a variety of affective neuroscience models of emotion (e.g., see Sander, 2013), M&P's paper is based on the primary emotional systems described by Panksepp (1998), which are believed to be common in mammals. M&P's cross-species analysis helps situate personality science within a consilient neuroevolutionary framework and, in so doing, affords potential insights into the primordial origins of human personality and how traits function.

For example, M&P link the Big Five dimension of Agreeableness to the CARE system, which promotes the affectionate engagement with and nurturing of offspring. Since CARE circuits are stronger in female animals (Panksepp, 1998), the system's alignment with Agreeableness helps make sense of persistent sex differences documented in cross-cultural studies, in which females score about half a standard deviation higher than males on this trait (Lippa, 2010). Similarly, the conspicuous absence of a primary emotional system beneath Conscientiousness in M&P's Figure 1 dovetails with studies suggesting that guilt comprises the “affective core” of this trait (Faynard et al., 2012). Faynard et al. (2012) found that Conscientiousness, though negatively associated with the experience of guilt, is positively associated with guilt proneness. While guilt and guilt proneness may have roots in ancient separation-distress systems (Panksepp, 1998, Chapter 14) these emotional dispositions require self-consciousness and therefore depend upon neural capacities beyond primary emotional systems. The fact that M&P's analysis informs empirical findings like the two described above is one reason why their article is compelling.

Nonetheless, M&P's succinct article necessarily leaves many questions unanswered and promising research directions unarticulated. Salient among the questions is the level of resolution researchers might consider when aligning traits with primary emotional systems. The Big Five represent a hierarchical taxonomy of traits, with the very broad dimensions of Neuroticism, Extraversion, Openness/Intellect, Conscientiousness, and Agreeableness each subsuming a still indeterminate number of narrower trait dimensions called “facets.” Studies even suggest the existence of intermediate traits called “aspects” (DeYoung et al., 2007). Thus, although we find M&P's Figure 1 to be a useful summary of how primary emotional systems may contribute to trait compositions, some of the systems documented by Panksepp (1998) may be more exactingly aligned with traits at lower levels of the Big Five hierarchy. For example, we might expect PLAY to be primarily associated with Enthusiasm, the communal aspect of Extraversion, and only secondarily with Assertiveness, Extraversion's agentic aspect (DeYoung et al., 2007). Indeed, like PLAY, Enthusiasm has been linked to both dopamine and endogenous opioids, whereas Assertiveness appears to be more strongly associated with dopamine (Allen and DeYoung, 2017). Future studies examining individual differences in primary emotions alongside faceted measures of the Big Five will no doubt foster a more nuanced mapping between the primary emotional systems and the trait hierarchy.

Beyond personality traits, M&P's analysis may also serve as a stepping stone for considering how other universal experiential and behavioral phenomena are based in ancient emotional systems. Our own interest has been in the connection between primary emotional systems and intrinsic motivation (Di Domenico and Ryan, 2017). Intrinsic motivation refers to the spontaneous tendency “to seek out novelty and challenges, to extend and exercise one's capacities, to explore, and to learn” (Ryan and Deci, 2000, p.70). When intrinsically motivated, people perform an activity because they find the activity itself interesting or personally satisfying. Though first identified in non-human primates (Harlow, 1950), intrinsic motivation has primarily been studied within the field of human motivation. Intrinsic motivation predicts enhanced performance, learning, and creativity, and it plays an important role in personality development and wellness across the lifespan (Ryan and Deci, 2017). Accordingly, intrinsic motivation is a topic of interest in both basic and applied research.

Intrinsic motivation is used as a broad term to describe activities that are volitionally enacted, growth-promoting, and performed for their own sake. As such, it encompasses activities that are both exploratory (e.g., curiosity, mastery-related behaviors) and socially playful (e.g., sporting activities, social games). Affective neuroscience models of emotion, including Panksepp's (1998), could afford new insights into intrinsic motivation. Distinct systems for exploratory SEEKING and social PLAY suggest different types of intrinsic motivation. Human neuroscience studies have focused on exploratory curiosity and mastery tendencies and we recently made the case that the SEEKING system is a basis for these intrinsically motivated activities (Di Domenico and Ryan, 2017).

Differences between exploratory SEEKING and social PLAY in humans are understudied and thus represent an important direction for intrinsic motivation research. We concur with Panksepp (1998) and others that social PLAY tendencies are a basis for people (especially children) to develop various social competencies and we regard play to be a type of intrinsically motivated socialization. Similar to the ongoing work mapping the primary emotional systems to the Big Five, clarification about the emotional states associated with different types of intrinsically motivated activities is likely to be important. Such studies can also leverage previous experimental work showing that intrinsic motivation is undermined by events that thwart people's feelings of autonomy (volition) and competence (mastery) (Deci et al., 1999). Whether these events similarly undermine exploration, play, and their concomitant affects is an important question for future studies.

Author Contributions

SD conceptualized and wrote the commentary. RR assisted in conceptualizing and writing the commentary.

Funding

SD was supported in this research by a postdoctoral fellowship from the Social Sciences and Humanities Research Council of Canada.

Conflict of Interest Statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Keywords: big five personality traits, personality neuroscience, basic emotions, SEEKING/PLAY systems, intrinsic motivation

Citation: Di Domenico SI and Ryan RM (2017) Commentary: Primary Emotional Systems and Personality: An Evolutionary Perspective. Front. Psychol. 8:1414. doi: 10.3389/fpsyg.2017.01414

Received: 18 July 2017; Accepted: 03 August 2017;
Published: 21 August 2017.

Edited by:

Fausto Caruana, University of Parma, Italy

Reviewed by:

Fernando Ferreira-Santos, University of Porto, Portugal

Copyright © 2017 Di Domenico and Ryan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Stefano I. Di Domenico, stefanoddmn@gmail.com