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Attachment in adults
Attachment theory was extended to adult romantic relationships in the late 1980s. Four styles of attachment have been identified in adults: secure, anxious-preoccupied, dismissive-avoidant, and fearful-avoidant. Investigators have explored the organization and the stability of mental working models that underlie these attachment styles. They have also explored how attachment impacts relationship outcomes and how attachment functions in relationship dynamics.
Extending Attachment Theory
John Bowlby and Mary Ainsworth founded modern attachment theory on studies of children and their caregivers. Children and caregivers remained the primary focus of attachment theory for many years. Then, in the late 1980s, Cindy Hazan and Phillip Shaver applied attachment theory to adult romantic relationships.    Hazan and Shaver noticed that interactions between adult romantic partners shared similarities to interactions between children and caregivers. For example, romantic partners desire to be close to one another. Romantic partners feel comforted when their partners are present and anxious or lonely when their partners are absent. Romantic relationships serve as a secure base that help partners face the surprises, opportunities, and challenges life presents. Similarities such as these led Hazan and Shaver to extend attachment theory to adult romantic relationships.
Of course, relationships between adult romantic partners differ in many ways from relationships between children and caregivers. The claim is not that these two kinds of relationships are identical. The claim is that the core principles of attachment theory apply to both kinds of relationships.
Investigators tend to describe the core principles of attachment theory in light of their own theoretical interests. Their descriptions seem quite different on a superficial level. For example, Fraley and Shaver  describe the "central propositions" of attachment in adults as follows:
Compare this to the five "core propositions" of attachment theory listed by Rholes and Simpson: 
While these two lists clearly reflect the theoretical interests of the investigators who created them, a closer look reveals a number of shared themes. The shared themes claim that:
No doubt these themes could be described in a variety of ways (and other themes added to the list). Regardless of how one describes the core principles of attachment theory, the key insight is that the same principles of attachment apply to close relationships throughout the lifespan. The principles of attachment between children and caregivers are fundamentally the same as the principles of attachment between adult romantic partners.
Adults have four attachment styles: secure, anxious-preoccupied, dismissive avoidant, and fearful avoidant. The secure attachment style in adults corresponds to the secure attachment style in children. The anxious-preoccupied attachment style in adults corresponds to the anxious/ambivalent attachment style in children. However, the dismissive avoidant attachment style and the fearful avoidant attachment style, which are distinct in adults, correspond to a single avoidant attachment style in children. The descriptions of adult attachment styles offered below are based on the relationship questionnaire devised by Bartholomew and Horowitz  and on a review of studies by Pietromonaco and Barrett. 
Securely attached people tend to agree with the following statements: "It is relatively easy for me to become emotionally close to others. I am comfortable depending on others and having others depend on me. I don't worry about being alone or having others not accept me." This style of attachment usually results from a history of warm and responsive interactions with relationship partners. Securely attached people tend to have positive views of themselves and their partners. They also tend to have positive views of their relationships. Often they report greater satisfaction and adjustment in their relationships than people with other attachment styles. Securely attached people feel comfortable both with intimacy and with independence. Many seek to balance intimacy and independence in their relationships.
People who are anxious or preoccupied with attachment tend to agree with the following statements: "I want to be completely emotionally intimate with others, but I often find that others are reluctant to get as close as I would like. I am uncomfortable being without close relationships, but I sometimes worry that others don't value me as much as I value them." People with this style of attachment seek high levels of intimacy, approval, and responsiveness from their partners. They sometimes value intimacy to such an extent that they become overly dependent on their partners—a condition colloquially termed clinginess. Compared to securely attached people, people who are anxious or preoccupied with attachment tend to have less positive views about themselves. They often doubt their worth as a partner and blame themselves for their partners' lack of responsiveness. They also have less positive views about their partners because they do not trust in people's good intentions. People who are anxious or preoccupied with attachment may experience high levels of emotional expressiveness, worry, and impulsiveness in their relationships.
People with a dismissive style of avoidant attachment tend to agree with these statements: "I am comfortable without close emotional relationships. It is very important to me to feel independent and self-sufficient, and I prefer not to depend on others or have others depend on me." People with this attachment style desire a high level of independence. The desire for independence often appears as an attempt to avoid attachment altogether. They view themselves as self-sufficient and invulnerable to feelings associated with being closely attached to others. They often deny needing close relationships. Some may even view close relationships as relatively unimportant. Not surprisingly, they seek less intimacy with relationship partners, whom they often view less positively than they view themselves. Investigators commonly note the defensive character of this attachment style. People with a dismissive-avoidant attachment tend to suppress and hide their feelings, and they tend to deal with rejection by distancing themselves from the sources of rejection (i.e., their relationship partners).
People with a fearful style of avoidant attachment tend to agree with the following statements: "I am somewhat uncomfortable getting close to others. I want emotionally close relationships, but I find it difficult to trust others completely, or to depend on them. I sometimes worry that I will be hurt if I allow myself to become too close to others." People with this attachment style have mixed feelings about close relationships. On the one hand, they desire to have emotionally close relationships. On the other hand, they tend to feel uncomfortable with emotional closeness. These mixed feelings are combined with negative views about themselves and their partners. They commonly view themselves as unworthy of responsiveness from their partners, and they don't trust the intentions of their partners. Similarly to the dismissive-avoidant attachment style, people with a fearful-avoidant attachment style seek less intimacy from partners and frequently suppress and hide their feelings.
Bowlby theorized that children learn from their interactions with caregivers. Over the course of many interactions, children form expectations about the accessibility and helpfulness of their caregivers. These expectations reflect children's thoughts about themselves and about their caregivers:
"Confidence that an attachment figure is, apart from being accessible, likely to be responsive can be seen to turn on at least two variables: (a) whether or not the attachment figure is judged to be the sort of person who in general responds to calls for support and protection; (b) whether or not the self is judged to be the sort of person towards whom anyone, and the attachment figure in particular, is likely to respond in a helpful way. Logically, these variables are independent. In practice they are apt to be confounded. As a result, the model of the attachment figure and the model of the self are likely to develop so as to be complementary and mutually confirming." (Bowlby, 1973, page 238 ) 
Children's thoughts about their caregivers, together with thoughts about themselves as deserving good caregivers, form working models of attachment. Working models help guide behavior by allowing children to anticipate and plan for caregiver responses. Once formed, Bowlby theorized that working models remain relatively stable. Children usually interpret experiences in light of their working models rather than change their working models to fit new experiences. Only when experiences cannot be interpreted in light of working models do children modify their working models.
When Hazen and Shaver extended attachment theory to adults, they included the idea of working models. Research into adult working models has focused on two issues. First, how are the thoughts that form working models organized in the mind? Second, how stable are working models across time? These questions are briefly discussed below.
Organization of working models
Bartholomew and Horowitz have proposed that working models consist of two parts.  One part deals with thoughts about the self. The other part deals with thoughts about others. They further propose that a person's thoughts about self are generally positive or generally negative. The same applies to a person's thoughts about others. Thoughts about others are generally positive or generally negative. In order to test these proposals, Bartholomew and Horowitz have looked at the relationship between attachment styles, self-esteem, and sociability. The diagram below shows the relationships they observed:
The secure and dismissive attachment styles are associated with higher self-esteem compared to the anxious and fearful attachment styles. This corresponds to the distinction between positive and negative thoughts about the self in working models. The secure and anxious attachment styles are associated with higher sociability than the dismissive or fearful attachment styles. This corresponds to the distinction between positive and negative thoughts about others in working models. These results suggested working models indeed contain two distinct domains--thoughts about self and thoughts about others--and that each domain can be characterized as generally positive or generally negative.
Baldwin and colleagues have applied the theory of relational schemas to working models of attachment. Relational schemas contain information about the way partners regularly interact with each other.   For each pattern of interaction that regularly occurs between partners, a relational schema is formed that contains:
For example, if a person regularly asks his or her partner for a hug or kiss, and the partner regularly responds with a hug or kiss, the person forms a relational schema representing the predictable interaction. The schema contains information about the self (e.g., "I need lots of physical affection"). It also contains information about the partner (e.g., "My partner is an affectionate person"). And it contains information about the way the interaction usually unfolds, which can be summarized by an IF-THEN statement (e.g., "IF I ask my partner for a hug or kiss, THEN my partner will respond with a hug or kiss and comfort me"). Relational schemas help guide behavior in relationships by allowing people to anticipate and plan for partner responses.
Baldwin and colleagues have proposed that working models of attachment are composed of relational schemas. The fact that relational schemas contain information about the self and information about others is consistent with previous conceptions of working models. The unique contribution of relational schemas to working models is the information about the way interactions with partners usually unfold. Relational schemas add the IF-THEN statements about interactions to working models. To demonstrate that working models are organized as relational schemas, Baldwin and colleagues created a set of written scenarios that described interactions dealing with trust, dependency and closeness.  For example, the scenarios for closeness included:
Following each scenario, people were presented with two options about how their partners might respond. One option was "he/she accepts you." The other option was "he/she rejects you." People were asked to rate the likelihood of each response on a seven point scale. Ratings of likely partner responses corresponded to people's attachment styles. People with secure attachment styles were more likely to expect accepting responses from their partners. Their relational schema for the third closeness scenario would be, "IF I tell my partner how deeply I feel for him or her, THEN my partner will accept me." People with other attachment styles were less likely to expect accepting responses from their partners. Their relational schema for the third closeness scenario would be, "IF I tell my partner how deeply I feel for him or her, THEN my partner will reject me." Differences in attachment styles reflected differences in relational schemas. Relational schemas may therefore be used to understand the organization of working models of attachment, as has been demonstrated in subsequent studies.   
The relational schemas involved in working models are likely organized into a hierarchy. According to Baldwin:
"A person may have a general working model of relationships, for instance, to the effect that others tend to be only partially and unpredictably responsive to one's needs. At a more specific level, this expectation will take different forms when considering different role relationships, such as customer or romantic partner. Within romantic relationships, expectations might then vary significantly depending on the specific partner, or the specific situation, or the specific needs being expressed." (Baldwin, 1992, page 429). 
The highest level of the hierarchy contains very general relational schemas that apply to all relationships. The next level of the hierarchy contains relational schemas that apply to particular kinds of relationships. The lowest level of the hierarchy contains relationship schemas that apply to specific relationships.
"From this perspective, people do not hold a single set of working models of the self and others; rather, they hold a family of models that include, at higher levels, abstract rules or assumptions about attachment relationships and, at lower levels, information about specific relationships and events within relationships. These ideas also imply that working models are not a single entity but are multifaceted representations in which information at one level need not be consistent with information at another level." (Pietromonaco & Barrett, 2000, page 159) 
Every hierarchy for working models includes both general working models (higher in the hierarchy) and relationship-specific working models (lower in the hierarchy). Studies have supported the existence of both general working models and relationship-specific working models. People can report a general attachment style when asked to do so, and the majority of their relationships are consistent with their general attachment style.  A general attachment style indicates a general working model that applies to many relationships. Yet, people also report different styles of attachments to their friends, parents, and lovers.   Relationship-specific attachment styles indicate relationship-specific working models. Evidence that general working models and relationship-specific working models are organized into a hierarchy comes from a study by Overall, Fletcher, and Friesen.  Findings from this study support a three-tier hierarchy of working models. The highest level of the hierarchy consists of a global working model. The next level of the hierarchy contains working models for different types of relationships (e.g., friends, parents, lovers). The lowest level in the hierarchy consists of working models for each specific relationship.
In summary, the mental working models that underlie attachment styles appear to contain information about self and information about others organized into relational schemas. The relational schemas are themselves organized into a three-tier hierarchy. The highest level of the hierarchy contains relational schemas for a general working model that applies to all relationships. The middle level of the hierarchy contains relational schemas for working models that apply to different types of relationships (e.g., friends, parents, lovers). The lowest level of the hierarchy contains relational schemas for working models of specific relationships.
Stability of working models
Investigators study the stability of working models by looking at the stability of attachment styles. Attachment styles reflect the thoughts and expectations that constitute working models. Changes in attachment styles therefore indicate changes in working models.
Around 70-80 percent of people experience no significant changes in attachment styles over time.      The fact that attachment styles do not change for a majority of people indicates working models are relatively stable. Yet, around 20-30 percent of people do experience changes in attachment styles. These changes can occur over periods of weeks or months. The number of people who experience changes in attachment styles, and the short periods over which the changes occur, suggest working models are not rigid personality traits.
Why attachment styles change is not well understood. Waters, Weinfield and Hamilton propose that negative life experiences often cause changes in attachment styles.  Their proposal is supported by evidence that people who experience negative life events also tend to experience changes in attachment styles.    Davila, Karney and Bradbury have identified four sets of factors that might cause changes in attachment styles: (a) situational events and circumstances, (b) changes in relational schema, (c) personality variables, and (d) combinations of personality variables and situational events.  They conducted a study to see which set of factors best explained changes in attachment styles. Interestingly, the study found that all four sets of factors cause changes in attachment styles. Changes in attachment styles are complex and depend on multiple factors.
Adult romantic relationships vary in their outcomes. The partners of some relationships express more satisfaction than the partners of other relationships. The partners of some relationships stay together longer than the partners of other relationships. Does attachment influence the satisfaction and duration of relationships?
Several studies have linked attachment styles to relationship satisfaction. People who have secure attachment styles usually express greater satisfaction with their relationships than people who have other attachment styles.         
Although the link between attachment styles and marital satisfaction has been firmly established, the mechanisms by which attachment styles influence marital satisfaction remain poorly understood. One mechanism may be communication. Secure attachment styles may lead to more constructive communication and more intimate self-disclosures, which in turn increase relationship satisfaction.   Other mechanisms by which attachment styles may influence relationship satisfaction include emotional expressiveness,   strategies for coping with conflict,  and perceived support from partners.   Further studies are needed to better understand how attachment styles influence relationship satisfaction.
Some studies suggest people with secure attachment styles have longer-lasting relationships.   This may be partly due to commitment. People with secure attachment styles tend to express more commitment to their relationships. People with secure attachment styles also tend to be more satisfied with their relationships, which may encourage them to stay in their relationships longer. However, secure attachment styles are by no means a guarantee of long-lasting relationships.
Nor are secure attachment styles the only attachment styles associated with stable relationships. People with anxious-preoccupied attachment styles often find themselves in long-lasting, but unhappy, relationships.   Anxious-preoccupied attachment styles often involve anxiety about being abandoned and doubts about one's worth as a relationship partner. These kinds of feelings and thoughts may lead people to stay in unhappy relationships.
Attachment plays a role in the way partners interact with one another. A few examples include the role of attachment in affect regulation, support, intimacy, and jealousy. These examples are briefly discussed below. Attachment also plays a role in many interactions not discussed in this article, such as conflict, communication, and sexuality.   
Bowlby has observed that certain kinds of events trigger anxiety in children, and that children try to relieve their anxiety by seeking closeness and comfort from caregivers.  Three main sets of conditions trigger anxiety in children:
The anxiety triggered by these conditions motivates children to engage in behaviors that bring them physically closer to caregivers. A similar dynamic occurs in adults. Conditions involving personal well-being, conditions involving a relationship partner, and conditions involving the environment can trigger anxiety in adults. Adults try to alleviate their anxiety by seeking physical and psychological closeness to their partners.
Mikulincer, Shaver and Pereg have developed a model for this dynamic.  According to the model, when people experience anxiety, they try to reduce their anxiety by seeking closeness with relationship partners. However, the partners may accept or reject requests for greater closeness. This leads people to adopt different strategies for reducing anxiety. People engage in three main strategies to reduce anxiety.
The first strategy is called the security based strategy. The diagram below shows the sequence of events in the security based strategy.
A person perceives something that provokes anxiety. The person tries to reduce the anxiety by seeking physical or psychological closeness to her or his partner. The partner responds positively to the request for closeness, which reaffirms a sense of security and reduces anxiety. The person returns to her or his everyday activities.
The second strategy is called the attachment avoidance strategy. The following diagram shows the sequence of events in the attachment avoidance strategy.
The events begin the same way as the security based strategy. A person perceives something that triggers anxiety, and the person tries to reduce anxiety by seeking physical or psychological closeness to her or his partner. But the partner is either unavailable or rebuffs the request for closeness. The lack of responsiveness fuels insecurity and heightens anxiety. The person gives up on getting a positive response from the partner, suppresses her or his anxiety, and distances herself or himself from the partner.
The third strategy is called the hyperactivation strategy. The diagram below shows the sequence of events in the hyperactivation strategy.
The events begin the same way. Something provokes anxiety in a person, who then tries to reduce anxiety by seeking physical or psychological closeness to a partner. The partner rebuffs the request for greater closeness. The lack of responsiveness increases feelings of insecurity and anxiety. The person then gets locked into a cycle with the partner: the person tries to get closer, the partner rejects the request for greater closesness, which leads the person to try even harder to get closer, followed by another rejection from the partner, and so on. The cycle ends only when the person shifts to a security based strategy (because the partner finally responds positively) or to an attachment avoidant strategy (because the person gives up on getting a positive response from the partner).
Mikulincer, Shaver, and Pereg contend these strategies of regulating attachment anxiety have very different consequences.  The security based strategy leads to more positive thoughts, such as more positive explanations of why others behave in a particular way and more positive memories about people and events. More positive thoughts can encourage more creative responses to difficult problems or distressing situations. The attachment avoidance and hyperactivation strategies lead to more negative thoughts and less creativity in handling problems and stressful situations. From this perspective, it would benefit people to adopt security based strategies for dealing with anxiety.
People feel less anxious when close to their partners because their partners can provide support during difficult situations. Support includes the comfort, assistance, and information people receive from their partners.
Attachment influences both the perception of support from others and the tendency to seek support from others. People with secure attachment styles seek more support and get more support from their relationship partners, while people with other attachment styles seek less support and get less support from their relationships partners.     People with secure attachment styles may trust their partners to provide support because their partners have reliably offered support in the past. They may be more likely to ask for support when it's needed. People with insecure attachment styles often do not have a history of supportive responses from their partners. They may rely less on their partners and be less likely to ask for support when it's needed. Keep in mind, however, that attachment is only one of many factors that influence how people perceive support and whether or not they choose to seek support.
Changes in the way people perceive attachment tend to occur with changes in the way people perceive support. One study looked at college students' perceptions of attachment to their mothers, fathers, same-sex friends, and opposite-sex friends.  When students reported changes in attachment for a particular relationship, they usually reported changes in support for that relationship as well. Changes in attachment for one relationship did not affect the perception of support in other relationships. The link between changes in attachment and changes in support was relationship-specific.
Attachment theory has always recognized the importance of intimacy. Bowlby writes:
"Attachment theory regards the propensity to make intimate emotional bonds to particular individuals as a basic component of human nature, already present in germinal form in the neonate and continuing through adult life into old age." (Bowlby, 1988, pages 120–121) 
The desire for intimacy has biological roots and, in the great majority of people, persists from birth until death. The desire for intimacy also has important implications for attachment. Relationships that frequently satisfy the desire for intimacy lead to more secure attachments between partners. Relationships that rarely satisfy the desire for intimacy lead to less secure attachments between partners.
Collins and Freeney have examined the relationship between attachment and intimacy in detail.  They define intimacy as a special set of interactions in which a person discloses something important about himself or herself, and a partner responds to the disclosure in a way that makes the person feel validated, understood, and cared for. These interactions usually involve verbal self-disclosure. But intimate interactions can also involve non-verbal forms of self-expression such as touching, hugging, kissing, and sexual behavior. From this perspective, intimacy requires the following:
Collins and Freeney review a number of studies showing how each attachment style relates to the willingness to self-disclose, the willingness to rely on partners, and the willingness to engage in physical intimacy. The secure attachment style is generally related to more self-disclosure, more reliance on partners, and more physical intimacy than other attachment styles. However, the amount of intimacy in a relationship can vary due to personality variables and situational circumstances, so each attachment style may function to adapt an individual to the particular context of intimacy in which they live.
Mashek and Sherman report some interesting findings on the desire for less closeness with partners.  Sometimes too much intimacy can be suffocating. People in this situation desire less closeness with their partners. On the one hand, the relationship between attachment styles and desire for less closeness is predictable. People who have fearful-avoidant and anxious-preoccupied attachment styles typically want greater closeness with their partners. People who have dismissive-avoidant attachment styles typically want less closeness with their partners. On the other hand, the relatively large numbers of people who admit to wanting less closeness with their partners (up to 57% in some studies) far outnumbers the people who have dismissive-avoidant attachment styles. This suggests people who have secure, anxious-preoccupied, or fearful-avoidant attachment styles sometimes seek less closeness with their partners. The desire for less closeness is not determined by attachment styles alone.
Jealousy refers to the thoughts, feelings, and behaviors that occur when a person believes a valued relationship is threatened by a rival. A jealous person experiences anxiety about maintaining support, intimacy, and other valued qualities of her or his relationship. Given that attachment relates to anxiety regulation, support, and intimacy, as discussed above, it is not surprising that attachment also relates to jealousy.
Bowlby observed that attachment behaviors in children can be triggered by the presence of a rival:
"In most young children the mere sight of mother holding another baby in her arms is enough to elicit strong attachment behaviour. The older child insists on remaining close to his mother, or on climbing on to her lap. Often he behaves as though he were a baby. It is possible that this well-known behaviour is only a special case of a child reacting to mother's lack of attention and lack of responsiveness to him. The fact, however, that an older child often reacts in this way even when his mother makes a point of being attentive and responsive suggests that more is involved; and the pioneer experiments of Levy (1937) also indicate that the mere presence of a baby on mother's lap is sufficient to make an older child much more clinging." (Bowlby, 1969/1982, page 260) 
When children see a rival contending for a caregiver's attention, the children try to get close to the caregiver and capture the caregiver's attention. Attempts to get close to the caregiver and capture the caregiver's attention indicate the attachment system has been activated. But the presence of a rival also provokes jealousy in children. The jealousy provoked by a sibling rival has been described in detail.  Recent studies have shown that a rival can provoke jealousy at very young ages. The presence of a rival can provoke jealousy in infants as young as six months old.    Attachment and jealousy can both be triggered in children by the presence of a rival.
Attachment and jealousy can be triggered by the same perceptual cues in adults, too.  The absence of a partner can trigger both attachment and jealousy when people believe the partner is spending time with a rival. The presence of a rival can also trigger attachment and jealousy.
Differences in attachment styles influence both the frequency and the pattern of jealous expressions. People who have anxious-preoccupied or fearful-avoidant attachment styles experience jealousy more often and view rivals as more threatening than people who have secure attachment styles.     People with different attachment styles also express jealousy in different ways. One study found that:
"Securely attached participants felt anger more intensely than other emotions and were relatively more likely than other participants to express it, especially toward their partner. And although anxious participants felt anger relatively intensely, and were as likely as others to express it through irritability, they were relatively unlikely to actually confront their partner. This might be attributable to feelings of inferiority and fear, which were especially characteristic of the anxiously attached and which might be expected to inhibit direct expressions of anger. Avoidants felt sadness relatively more intensely than did secures in both studies. Further, avoidants were relatively more likely than others to work to maintain their self-esteem and, perhaps as a consequence, relatively unlikely to be brought closer to their partner." (Sharpsteen & Kirkpatrick, 1997, page 637) 
A subsequent study has confirmed that people with different attachment styles experience and express jealousy in qualitatively different ways.  Attachment thus plays an important role in jealous interactions by influencing the frequency and the manner in which partners express jealousy.
Adult Treatment Based on Attachment Theory
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Attachment_in_adults". A list of authors is available in Wikipedia.|