Emotional problems are prevalent amongst the most common causes of disability. National institute of mental health (NIMH) reported that 13 million American adults (approximately 1 in 17) have a serious mental illness (
1). Mental health disorders cause severe problems in life. People with high levels of depressive symptoms or depressive disorders are at risk of having academic and interpersonal difficulties. It is expected for these students to become cigarette smokers, use other substances and make an effort for suicide (
2,
3). In the United States and Canada, accounting for 25% of all years of life lost to disability and premature mortality (
4). Moreover, suicide is the 11th leading cause of death in the United States, accounting for deaths of approximately 30000 Americans each year (WISQARS, 2010). Iranian student population is also affected by depression, anxiety and stress. For example, the study of Najafikolyani et al. showed that 76% of students had stress, while 56% and 53% had depression and anxiety, respectively (
5).
Mental disorders, such as depression and anxiety, have an effect upon people’s capacity to join and become involved in health-promoting behaviors. In turn, mental health arises prosperous performance of mental function, resulting in productive activates, fulfilling relationships with other people, and the ability to adapt to change and deal successfully with demanding or stimulating situations. Mental health is dependent on many factors, such as family and individual factors. Thus, attachment security plays an important role in emotional regulation and mental health (
6). Bowlby underlined that loosing an attachment figure extends the likelihood of depression in adulthood (
7,
8). Attachment researchers insist that the parental emotional negligence provides a basis for anxiety disorder (
9).
Previous studies showed that adolescent attachment organization was a predictor of the antagonism (
10), social competence (
11-
13), illicit drug use (
14), depression (
15), eating disorders (
16), affective disorder, obsessive-compulsive, histrionic, borderline or schizotypal personality disorders, and self-reported avoidant, anxious and dysthymic personality traits (
12). Keating, Tasca and Hill found that there was a negative relationship between anxious attachment and body esteem. They also concluded that attachment avoidance had an indirect negative relationship with body esteem through alexithymia (
17).
Lee and Hakins (
18) showed that anxious and avoidant attachment predicted depression and anxiety, therefore quality of attachment is an important factor in improving the power or capacity of individuals to tolerate unfavorable environmental conditions and enduring mental health (
19). Also insecure attachment during puerility is a strong predictor of adulthood depression (
20). Haddadi Koohsar and Ghobary Bonab (
21) found that anxiety and depression of Iranian college students could be predicted by quality of attachment. Studies showed that depression and anxiety exists in students with anxious attachment more than individuals with dependent attachment (dependability of others). Meta-analysis of 100 studies indicated that there was a negative association between a secure attachment and anxiety and depression (
22).
Clarifying the mechanisms by which attachment dimensions cause clinical symptoms such as depression, anxiety and interpersonal problems, has increasingly become a subject of interest (
22). Dewitte, Houwer, Goubert and Buysse declared that the attachment of the internal working models influences strategies of emotion regulation (
23). Maternal characteristics such as sensitivity, availability (e.g. the quality of being at hand when needed) and responsiveness make a secure basis for children. Having a secure basis prepares the person to experience and cope with difficulties. Also Bowlby, Roque and Verissimo, and Vallotton and Ayoub stated that the main source of variation in emotion regulation strategies was explained by sensitivity, availability and responsiveness (
7,
24).
A number of studies have identified mediators between psychological distress and attachment. For example, Wei and colleagues (
15) determine that affect regulation perform as mediator between attachment dimensions and negative mood in a sample of college students. In another research declared that emotion focused coping mediate in the relationship between attachment anxiety and body image disturbances, depression and problem eating, hence can assert that affect regulation strategies has role in mediating the relationship between attachment dimensions and both depressive and eating disorder (ED) symptoms (
25,
26). Hilbert and Tuschen-Caffier (
27) also found that binge eating was preceded by difficulty in regulating affect in females with Bulimia nervosa. Besharat and Shahidi confirmed the mediating role of positive and negative cognitive emotion regulation strategies on the relationship between attachment styles and alexithymia (
28).
Therefore, we can propose that attachment insecurity is a rational motive for the development of maladaptive regulation, which leads to emotional problems (stress, anxiety and depressive symptoms). For instance, anxious individuals with attachment anxiety may experience maladaptive emotion regulation that may produce symptoms like arousal behavior.
Cognitive emotion regulation strategies are cognitive responses to emotion-eliciting special set of circumstances that consciously or unconsciously endeavor to make the individuals’ emotional experience or the event itself less severe or harsh or extreme (
29-
33). In the recent years, firm work has been done to describe the relationships between tendency to use certain strategies and a variety of disorders, including depression (
29,
30), mania (
31), generalized anxiety disorder (
32), post-traumatic stress disorder (
33), social anxiety disorder (
34), and eating disorders (
30,
35).
In this context, there is a wide variety of cognitive emotion regulation strategies that can be used to cope with emotionally arousing thoughts elicited by the experience of threatening or stressful life events. These strategies range from theoretically more adaptive strategies (e.g., positive refocusing, acceptance and positive reappraisal) to more maladaptive strategies (e.g., self-blame, ruminative thinking and catastrophizing). When investigating complex mechanisms such as the activation of inefficient attitudes and depressive symptoms under stress, it has been suggested to consider classes of strategies instead of focusing on one single cognitive strategy (
36). No studies have examined the mediating role of cognitive emotion regulation to explain the relationship between attachment insecurity and emotional problems. The purpose of this study was to examine the mediating role of cognitive emotion regulation. We hypothesized that the association between attachment dimensions and emotional is mediated by cognitive emotion regulation (see
Figure 1).
Conceptual Model of the Research