Testing the differential effects of acceptance and attention-based psychological interventions on intrusive thoughts and worry

Are Mindfulness and Mind-Wandering Opposite Constructs? It Depends on How Mindfulness is Conceptualised

This study investigated if trait mindfulness and its components, mindful attention, acceptance, and non-judging correlate negatively with self-reported and indirect markers of mind-wandering. The 552 participants of the study completed an anonymous online questionnaire consisting of trait mindfulness and mind-wandering scales. They also completed the computer-based Sustained Attention to Response Task (SART), an objective measure of mind-wandering. The total mindfulness score and acceptance and non-judging subscale scores were strongly negatively correlated with both self-reported trait mind-wandering (TMW) and SART indices of mind-wandering. In contrast, attention was significantly positively correlated with both. These findings suggest that trait mindfulness conceptualised as a multi-component construct, but not a uni-component one, is probably an opposing construct to trait mind-wandering. Furthermore, mindfulness and its components, acceptance and non-judging, are associated with a reduction in the more common form of SART errors. However, only the acceptance component made a unique contribution to the variance in TMW and SART performance. Therefore, it is advisable for researchers to specify whether they investigated mindfulness as a uni-component or multi-component construct. Furthermore, it would be beneficial if future research investigates the relationship of mindfulness and its components with mind-wandering further by also incorporating a measure of state mindfulness.

Escaping from worries: Comparing the effectiveness of focusing on one's breath, a neutral and a positive distractor in worry control

Focused-distraction strategies are commonly used for thought control, but their effectiveness in handling personal worries with different types of distractors has rarely been examined. To examine this issue, 101 undergraduate and graduate students whose depression levels fell below mild depression were recruited (64.4% female, M age  = 20.27) and were randomly assigned to one of the three strategy conditions: 34 participants for the focused-breathing strategy (FBS), 34 for the focused-positive-distractor strategy (FPS), and 33 for the focused-neutral-distractor strategy (FNS). After a short introduction and practice, they applied the assigned strategy during a 5-min worry control session to prevent thoughts regarding a recent worrying event. The number of worry intrusions was measured using an online self-caught method. Participants rated their emotional states before and after the worry control session. Their working memory capacities (WMCs) and depressive tendency were comparable across conditions. The results showed the FBS and FPS groups exhibited fewer worry intrusions than did the FNS group. Furthermore, worry intrusions were negatively related to WMC for the FNS group but independent of WMC for the other two. The above findings together indicate that the FBS and FPS are relatively effective and effortless methods for reducing worry intrusions. Negative emotions decreased after the worry control session for all groups. However, decoupling of negative emotions from worry intrusions was only observed for the FBS and FNS groups. Overall, FBS outperforms FPS and FNS in managing worries from the above aspects. Several theoretical and practical implications of the study were discussed.

Mindfulness Meditation Leads To Increased Dispositional Mindfulness And Interoceptive Awareness Linked To A Reduced Dissociative Tendency

Dissociation is an involuntary defensive mechanism to protect oneself by avoiding unbearable internal conflicts or overwhelming emotions. Cultivating mindful awareness could allow the development of voluntary processes that can offer part of the self-protective function of dissociation while favoring internal integration processes. The aim of the present study was to explore the effects of a 7-week Mindfulness Oriented Meditation (MOM) training on healthy individuals' self-reported dissociative experience, mindfulness skills and interoceptive awareness. After the training, in comparison to a waiting-list control group (N = 102), the MOM group (N = 110) showed reduced dissociative tendencies (p < .05), increased dispositional mindfulness (p < .001) and increased interoceptive awareness (in the aspects of not-worrying, self-regulation and body listening; p < .001). Moreover, correlational evidence showed that the more MOM participants increased in mindfulness skills after the training the more they reported increased interoceptive awareness and decreased dissociative functioning (p < .05). Mindfulness skills also improved with more home meditation practice executed by MOM participants (p < .05). These findings were attributed to a possible role of mindfulness meditation in enabling the development of volitional processes that afford psychological safety and integration, in contrast with the involuntary nature of dissociation.

Brain-heart interaction in perseverative cognition

The move from the concept of homeostasis to that of allostasis has led reactivity stress research to widen the object of its investigation: from the brief physiological response that occurs when one is facing a stressor to what happens when one is anticipating or recovering from a stressor. A paradigmatic example is represented by perseverative cognition, during which human beings react "as if" they were constantly facing a concrete stressor. The core idea behind this review is that the cognitive inflexibility that characterizes perseverative cognition is reflected in both our body (by increased autonomic nervous system rigidity assessed by heart rate variability; HRV) and our brain (by reduced prefrontal-amygdala functional connectivity). This is a review of studies conducted in different settings (laboratory, daily life), populations (healthy, major depression, generalized anxiety), location (United States, Europe), and age groups (children, adults) that consistently replicated the association between autonomic, subjective, and behavioral measures of cognitive inflexibility during perseverative cognition. Moreover, compelling neuroimaging data suggest that HRV reduction from pre- to post-induction of perseverative cognition is associated with both structural and functional brain abnormalities reflecting impaired prefrontal inhibitory control over subcortical structures (e.g., diminished prefrontal-amygdala functional connectivity). The integration of neuroscience techniques with clinical autonomic research has advanced our understanding of the neurobiology of brain-heart interaction during perseverative cognition, potentially yielding to more effective treatment packages. This is clinically relevant if one considers that perseverative cognition is a pervasive transdiagnostic factor that carries prognostic risk for both psychological and somatic health.