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11 - Advances in Self-Expansion

from Part III - Interdependence, Goal Pursuit, and Person Factors

Published online by Cambridge University Press:  19 June 2020

Laura V. Machia
Affiliation:
Syracuse University, New York
Christopher R. Agnew
Affiliation:
Purdue University, Indiana
Ximena B. Arriaga
Affiliation:
Purdue University, Indiana
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Summary

In this chapter, we discuss recent empirical and theoretical advances that demonstrate how, why, and under what conditions interdependent relationships promote self-expansion (i.e., the cognitive reorganization of individuals’ self-concept due to the acquisition or augmentation of traits, perspectives, identities, and capabilities). In particular, we discuss ways in which engaging in self-expansion has the potential to not only enhance individual well-being but to also enhance close relationships. In the first section of the chapter, we review the broadening and deepening of research on the fundamental tenets of the self-expansion model. Specifically, we begin by identifying the defining characteristics of the self-expansion process, such as the underlying features of shared relational activities that foster self-expansion. We then explore cognitive and motivational antecedents of self-expansion seeking, particularly experiences that promote approach motivation and subsequent interdependence. Furthermore, we discuss the relational, behavioral, cognitive, affective, and physiological outcomes of the self-expansion process, and we consider how the outcomes of both relational and individual self-expansion shape expectations for relationships. In the second section of the chapter, we review interdependence-based extensions and applications of the self-expansion model. Specifically, we discuss additional self-concept changes that interdependent relationships can foster, including cognitive reorganizations that have deleterious intra- and interpersonal consequences. Additionally, we examine how self-expansion can occur in myriad contexts (e.g., through individual experiences, romantic relationships, friendships, the workplace, and intergroup interactions), and we explore novel applications and implications of self-expansion, such as reducing relationship conflict and intergroup prejudice. Finally, using the recent research in self-expansion as context, we discuss potential directions for future research.

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Publisher: Cambridge University Press
Print publication year: 2020

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