The neural correlates of context driven changes in the emotional response: An fMRI study.

Emotional flexibility reflects the ability to adjust the emotional response to the changing environmental context. To understand how context can trigger a change in emotional response, i.e., how it can upregulate the initial emotional response or trigger a shift in the valence of emotional response, we used a task consisting of picture pairs during functional magnetic resonance imaging sessions. In each pair, the first picture was a smaller detail (a decontextualized photograph depicting emotions using primarily facial and postural expressions) from the second (contextualized) picture, and the neural response to a decontextualized picture was compared with the same picture in a context. Thirty-one healthy participants (18 females; mean age: 24.44 ± 3.4) were involved in the study. In general, context (vs. pictures without context) increased activation in areas involved in facial emotional processing (e.g., middle temporal gyrus, fusiform gyrus, and temporal pole) and affective mentalizing (e.g., precuneus, temporoparietal junction). After excluding the general effect of context by using an exclusive mask with activation to context vs. no-context, the automatic shift from positive to negative valence induced by the context was associated with increased activation in the thalamus, caudate, medial frontal gyrus and lateral orbitofrontal cortex. When the meaning changed from negative to positive, it resulted in a less widespread activation pattern, mainly in the precuneus, middle temporal gyrus, and occipital lobe. Providing context cues to facial information recruited brain areas that induced changes in the emotional responses and interpretation of the emotional situations automatically to support emotional flexibility.

Interaction between emotional context-guided shifting and cognitive shifting: Introduction of a novel task.

Aim: Task shifting is considered as a critical component of cognitive flexibility that underlies the ability to flexibly switch between tasks. It is measured by performance-based tasks, where participants have to select/ignore simple target stimuli such as letters, numbers, or words according to certain rules. However, in everyday life individuals need to manage and shift between more complex, often emotionally charged stimuli. Previous paradigms developed to measure affective flexibility are based on the task where the focus is to shift between emotional and non-emotional stimuli, instead of the flexible shift between emotional valences. In view of this, the aim of the present study was to develop the Emotional Shifting Task, a novel paradigm that is created with the purpose of assessing emotional flexibility abilities by means of a novel valence-specific shifting design. Furthermore, scientific discussion regarding the relationship between cognitive and emotional flexibility abilities, a connection that is rarely addressed in the literature would be addressed. Method: In the present paper, task shifting was assessed by means of the Task Switching Task while the Emotional Shifting Task method evaluated emotional flexibility abilities in an online setting. Results: The results revealed a significant, positive relationship between task shifting and emotional shifting from positive to negative images only. Furthermore, when fast and slow performers on TST were distinguished results showed that fast performers on TST were also faster on EST shift conditions in general, but not on EST non-shift condition. Conclusion: These findings indicate that cognitive and emotional flexibility abilities may be interrelated. Our results seem to indicate a connection between the two shifting abilities. (Neuropsychopharmacol Hung 2021; 23(2): 319-330).

Machiavellian emotion regulation in a cognitive reappraisal task: An fMRI study.

Affective coldness is one of the main features of Machiavellianism. Recent studies have revealed that Machiavellians are emotionally detached and that this "affective blunting" is associated with intense feelings, emotional instability, negative emotions, and difficulty in enduring distress. We used brain-imaging techniques to investigate emotion regulation in Machiavellianism at a neuropsychological level. We used situations in which participants were required to demonstrate emotional flexibility to explore the controversy surrounding the fact that Machiavellianism is associated with both cold-mindedness and emotional instability. Participants performed a reappraisal task in which emotionally evocative pictures (from the International Affective Picture System) were presented in different contexts (negative, positive, and neutral). They were asked to interpret a scenario according to its title and to reinterpret it according to another context created by a new title (e.g., negatively labeled pictures shifted to positively labeled ones). During task performance, Machiavellians showed increased activation of brain regions associated with emotion generation-for example, the amygdala and insula. This indicates that Machiavellian individuals are able to be involved emotionally in social situations. Increased activation in the temporal and parahippocampal regions during reappraisal suggests that Machiavellians use semantic-perceptual processes to construct alternative interpretations of the same situation and have enhanced memory for emotional stimuli. Furthermore, they seem to possess an intense awareness that leads them to shift attention from external to internal information to detect environmental changes. These cognitive processes may enable them to adjust their behavior quickly. This study supports the flexibility hypothesis of Machiavellianism and suggests that Machiavellians' approach to emotion regulation is linked to their rational mode of thinking.