The psychological and neuro-morphological predictors of resilience in healthy adults: The whole is more than the sum of its parts

Abstract

Research in neuroscience has shifted the focal point from a pathological orientation (responses to recover from trauma or stress) to an emphasis on the role of resilience in health (protective factors to maintain health levels despite eventual adversities). Even if multiple single factors impact resilience capacities, an integrative predictive model including psychological constructs, personality traits and brain structural features may offer a deeper knowledge on trait resilience. We examined the associations between Resilience Scale-10 scores with numerous psychological dimensions, personality traits, and neuro-morphological features (brain volumes and thickness) in healthy adults of both sexes. Furthermore, we investigated the predictors potentially associated to resilience by regression modeling. Resilience values were predicted: positively by some personality characteristics (Conscientiousness, Openness, Resourcefulness, Enlightened second nature), psychological dimensions (Self-efficacy, Positive affect, Confidence), and brain morphological aspects (volumes of amygdala and hippocampus, and cortical thickness of temporal pole); and negatively by other personality traits (Fear of uncertainty) and psychological dimensions (Anxiety, Depression, Need for Approval). The identification of the multiple psychological and personality features and neuro-morphological aspects associated to resilience represents a critical step to understand the factors that predispose individuals to be resilient and eventually to develop novel approaches for resilience promotion.