User:Rdatwan1/Self-expansion model

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The self-expansion model proposes that individuals seek to expand their sense of self by acquiring resources, broadening their perspectives, and increase competency to ultimately optimize their ability to thrive in their environment. It was developed in 1986 by Arthur Aron and Elaine Aron to provide a framework for the underlying experience and behavior in close relationships. The model has two distinct but related core principles: the motivational principle and the inclusion-of-other-in-self principle. The motivational principle refers to an individual's inherent desire to improve their self-efficacy and adapt, survive, and reproduce in their environment. The inclusion-of-other-in-self principle posits that close relationships serve as the primary way to expand our sense of self as we incorporate the identities, perspectives, resources, and experiences of others as our own through these relationships.

Initial Attraction and Relationship Maintenance
Self-expansion usually begins with attraction toward another. Falling in love provides an opportunity for rapid self-expansion as there is a desire to unite with the person you love. While the perceived similarity in interests, background, and values is found to be an important factor affecting interpersonal attraction, dissimilarity in partners is an avenue for expansion due to the provision of novel resources, opinions, and identification. People tend to prefer others that are similar to them, which goes against the motivation to increase expansion opportunities. However, a study found that providing information about a high likelihood of developing a relationship with the target person diminished and somewhat reversed the similarity-attraction effect for men in particular. In this case, men were more likely to select dissimilar partners. People may generally be reluctant to pursue dissimilar others despite the opportunity for self-expansion. They might assume that they would not reciprocate their feelings and thus, no expansion would occur. Studies show that couples can experience different levels of motivation for self-expansion throughout their relationship, and these results have been replicated in cross-cultural samples. As relationships continue to change and evolve, the degree to which they foster expansion and growth may vary in the future. A type of confirmation bias emerges such that those that expect future self-expansion through their relationships are more likely to engage in self-expanding activities. Potential for future expansion is a strong predictor of relationship satisfaction and commitment.

Reducing Boredom and Increasing Sexual Desire
Research shows that when couples participate in some self-expansion activities, these activities can increase relationship satisfaction and improve relationship quality. However, expansion can also reduce negative outcomes such as relationship boredom. In one study, dating college students and married couples attributed boredom in their relationships to low novelty and stimulation. This was also associated with low pleasure and arousal in the relationship. When participants were primed with boredom in another study, they were more inclined to seek out new activities. This follows the first principle of the model which posits that individuals possess an inherent motivation to expand themselves. Sexual desire can be affected by relationship boredom. Those that report high sexual desire for their partners are more likely to have sexual and overall satisfaction in their relationships. Consensually non-monogamous individuals that have more than one sexual or romantic partner at the same time have more opportunities for self-expansion, suggesting positive implications for this relationship arrangement. Transitioning to an open relationship can be a novel and exciting experience for a couple that can increase levels of passion as posited by the research. There are several non-sexual opportunities as well when multiple partners are involved, such as exploring different interests and learning new perspectives.

Infidelity and Attention to Alternatives
Romantic relationships that do not provide sufficient opportunity for individual self-expansion may increase the inclination to perceive and focus on alternative partners. If this occurs to a great extent, it could lead to negative relational outcomes for an exclusive, monogamous relationship such as low relationship satisfaction/stability and a higher susceptibility to infidelity. In one study, participants that reported lower self-expansion in their relationships were more likely to enjoy interacting with a computer program simulation that was shown to be more self-expanding. In such circumstances, individuals are less likely to employ motivational and perceptual biases that protect against the influence of attractive alternatives. A mediational analysis demonstrated that attention to alternatives explains the observed relationship between self-expansion and infidelity. In another study, fMRI data revealed less brain activation in response to a series of attractive faces when participants were primed to remember moments of self-expansion in their current relationships, suggesting that self-expansion can discourage them from attending to attractive alternatives. Infidelity is a severe relational transgression that could lead to the dissolution of the relationship. Ending a relationship is dependent on many key factors such as "improvement of the self" and "hindering self-improvement". The self-expansion opportunities provided in a relationship can also affect the individual after breaking up. Loss of a relationship that does not promote expansion is found to have positive effects on the individual as it could provide new, previously restricted opportunities for growth. However, the individual may experience "self-contraction" (loss of self) if the relationship did provide sufficient expansion.

Implications of Individual Self-Expansion
Relationships serve as the primary means of self-expansion. However, personal or non-relational self-expansion can still occur through novel and challenging individual experiences (e.g. learning a new language) resulting in several intrapersonal benefits. Notable behavioral changes caused by individual self-expansion include smoking cessation, weight loss, and better physical health. Using an experience sampling design, researchers showed that increases in personal self-expansion in the same individual were correlated with higher passion in the relationship, while low levels of passion were observed for high levels of self-expansion across participants. This suggests that growth experienced through non-shared activities can fulfill individual needs but could reduce passion for one's partner. Another contributing factor is the level of support received by the partner. A study of retired married couples showed that prior support from partners for individual growth predicted happiness and satisfaction during retirement years. Relationship satisfaction for ongoing couples is increased when partners are encouraging non-relational self-expanding activities. This occurs as individuals believe their partners are facilitating their expansion and associate them with that expansion.