In Taiwan, people in early adulthood (around the age of 20 to 30) encounter a number of issues when graduating from school, beginning full-time jobs, and taking responsibility for their own life. During this transition period, they invariably experience stressful events. For example, making crucial and important life decisions regarding intimacy, marriage, family, and other major commitments involving career and life goals. People encountering these stressful events may experience problems in their mental health or existing problems may worsen into psychiatric disorders 1. For example, if an individual has trouble managing feelings of stress, they are likely to suffer from mental illness, such as anxiety 2 or depression 3. It is therefore important to help young adults develop psychological resilience, an important factor that can determine an individual's psychological recovery from stressful experiences 4.
Although the definition of psychological resilience remains inconsistent, recent research suggests that psychological resilience is a dynamic process that attenuates or disrupts the adverse effects of traumatic event 5. This process plays a crucial role in the prognosis of stress-related psychiatric disorders as well as the maintenance of mental health during stressful events 6,7. Low psychological resilience is associated with several mental health problems, such as anxiety, depression, and stress 8–10. In contrast, people with high psychological resilience adapt well and maintain a high level of psychological function even after the exposure to severely risky experiences 11. Understanding the contexts in which young adults can maintain good psychological resilience can provide them or a professional helper with a direction for working through adversity caused by stressful events during this transition period 12.
Recently, an increasing number of studies have sought to understand the relationship between individuals’ cognitive abilities and psychological resilience. Wolf, et al. 13 conducted a longitudinal study of cognitively healthy elderly individuals in Germany and found that individuals with lower resilience capacities (measured by educational attainments, which is the highest level of education that an individual has completed) exhibited stronger amyloid-related cognitive decline. In South Korea, researchers differentiated the degree of cognitive abilities between resilient individuals and non-resilient individuals in cross-sectional and longitudinal settings 14,15. They defined the “resilient group” as the participants who had at least one negative experience without any depressive syndromes in the past two weeks, and those who did not report any negative experience and had no depression were designated as the “reference group”. They used the Mini-Mental State Examination MMSE, an index of cognitive ability; 16 to evaluate an individual’s general cognitive ability (i.e., visuospatial, executive functioning, naming, memory, attention, language, abstraction, and orientation). The results demonstrated that the resilient group showed high MMSE scores compared to the reference group regardless of their age 15. In addition to finding an association between general cognitive ability and resilience, several studies have found a positive correlation between resilience and specific cognitive components (i.e., working memory, WM, or executive function) in people who experience adverse situations 17. However, a recent study by Bemath, et al. 18 found a null relationship between individuals’ cognitive abilities and psychological resilience when they investigated the role of working memory in the resilience of South African emerging adults from disadvantaged backgrounds. In general, the association between general cognitive ability and resilience has been established, despite inconsistent findings in the examination of the association between resilience and working memory.
There are several factors that could explain the inconsistent findings. First, studies vary in how they define and measure an individual’s resilience, such as a participant’s education attainments 13, and participants experienced negative events without depression 14,15. Second, some studies focused on adults (ages 30 to 64) in adverse circumstances 14,15, and findings from these studies may not be generalized to young adults (age of 20 to 30). Finally, the relationship between resilience and general cognitive function has been found to be contingent upon individuals’ depressive status 15 measured by the Beck's Depression Inventory II BDI-II, an index of one’s depressive status; 19.
To investigate the relationship between cognitive ability and resilience, we conducted this study with three different approaches from the previous studies. First, since resilience is considered a dynamic process and conceptualized at multiple levels 5, an individual's resilience should be conceptualized and measured in multiple aspects together. We therefore measure resilience using the Resilience Scale for Adults (RSA) 20, a valid and reliable measurement that captures an individual’s resilience in six aspects including, (1) perception of the self, (2) planned future, (3) social competence, (4) family cohesion, (5) social resources, and (6) structured style 20–22. Second, previous studies have shown that one’s adverse experience would influence their cognitive ability, including events associated with high social and family risks 23, low socioeconomic status 24, and environmental safety 25, and maternal depression 26. Thus, in the current study, we recruited young adults and examined the relationship between resilience and cognitive ability regardless of their exposure to adverse circumstances. Third, since previous studies have demonstrated that depression was negatively correlated with resilience 27,28 and the depressive symptoms was a predictor of resilience 29, we stratified the analysis by groups of different depressive statuses in young adults to investigate how depressive status modulates the association between cognitive ability and resilience. While we expect that depressive status is negatively associated with resilience and that cognitive ability is positively associated with resilience, we also expect that individuals’ depressive status and their cognitive ability will have an interactive effect in predicting their resilience.
In sum, this study had two main purposes. First, the study aimed to measure psychological resilience directly using an existing measurement and recruited young adults to investigate the association between cognitive ability and psychological resilience in this population. Second, to understand under what circumstances young adults can resist adversity caused by stressful events during this transition period, how cognitive ability and depressive status interact to predict an individual’s psychological resilience was investigated.