What psychological mechanisms enable people to reappraise a situation to change its emotional impact? We propose that reappraisal works by shifting appraisal outcomes—abstract representations of how a situational construal compares to goals—either by changing the construal ( reconstrual) or by changing the goal set ( repurposing). Instances of reappraisal can therefore be characterized as change vectors in appraisal dimensional space. Affordances for reappraisal arise from the range of mental models that could explain a situation ( construal malleability) and the range of goals that the situation could serve ( goal set malleability). This framework helps to expand our conception of reappraisal, assess and classify different instances of reappraisal, predict their relative effectiveness, understand their brain mechanisms, and relate them to individual differences.

Advances in our understanding of appraisal processes and emotion regulation have been two of the most important contributions of research on cognition and emotion in recent decades. Interestingly, however, progress in these two areas has been less mutually informative than one might expect or desire. To help remedy this situation, we provide an integration of appraisal theory and the process model of emotion regulation by describing parallel, interacting and iterative systems for emotion generation and emotion regulation. Outputs of the emotion generation system are perceived by the emotion regulation system, and emotion regulation strategies then modulate emotion by intervening at specific stages of the emotion generation system, ultimately changing appraisal dimensions. We hope that our unified perspective will encourage and guide future research at the interface of cognition and emotion.

Our study yielded 3 central findings: first, a dissociation between the "silent" anterior and nonsilent middle/posterior OFC where stimulation clearly elicits changes in subjective experience; second, evidence that the OFC might play a causal role in integrating affect and multimodal sensory experiences; and third, clear evidence for left lateralization of negatively valenced effects. Our findings provide important information for clinicians treating OFC injury or planning OFC resection and scientists seeking to understand the brain basis for the integration of sensation, cognition, and affect.

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The subjective and behavioral effects of intracranial electrical stimulation (iES) have been studied for decades, but there is a knowledge gap regarding the relationship between the magnitude of electric current and the type, intensity and valence of evoked subjective experiences. We report on rare iES data from 18 neurosurgical patients with implanted intracranial electrodes in the orbitofrontal cortex (OFC), the insula (INS) and the anterior portion of cingulate cortex (ACC). ACC stimulation elicited somatic and visceral sensations, whereas OFC stimulation predominantly elicited olfactory and gustatory responses, and INS stimulation elicited a mix of effects involving somatic and visceral sensations, olfaction and gustation. Further, we found striking evidence that the magnitude of electric current delivered intracranially correlated positively with the perceived intensity of subjective experience and the evoked emotional state, a relationship observed across all three regions. Finally, we observed that the majority of reported experiences were negatively valenced and unpleasant, especially those elicited by ACC stimulation. The present study provides novel case studies from the human brain confirming that these structures contribute causally to the creation of affective states and demonstrates a direct relationship between the magnitude of electrical stimulation of these structures and the qualia of elicited subjective experience. Summary: This study provides critical knowledge about the effect of electrical charge magnitude on the intensity of human subjective experiences and emotional states. We shed light on the fundamental relationship between the electrical (physical) state of cortical tissue and the modality and intensity of human (subjective) experience. As electroceutical interventions are increasingly employed to treat neurological and psychiatric disorders, these findings highlight the importance of electrical stimulation magnitude for eliciting specific changes in human subjective experience.