Brain-region activity fails to rank emotion regulation ability
A preregistered analysis of 40 brain-imaging datasets involving 2,175 people found that three common measures of emotion regulation did not capture a shared capacity. Prefrontal activity also failed to show the expected link with individual performance. The peer-reviewed findings distinguish activity during a task from reliable measurement of differences between people, with implications for research on brain-based indicators.
Science··Evening
Three measures fail to converge
An international research consortium examined how well common measurements capture a person's capacity for cognitive reappraisal: changing the interpretation of a situation to alter its emotional impact. The peer-reviewed analysis combined 40 functional magnetic resonance imaging datasets involving 2,175 participants. Participating teams used a shared preregistered analysis plan. Researchers compared questionnaires about habitual reappraisal, emotional ratings during laboratory tasks and reductions in amygdala activity. The amygdala processes emotionally significant stimuli. Although these indicators are often treated as complementary measures, they did not converge on a shared capacity. The questionnaire scores were unrelated to either task ratings or amygdala down-regulation, challenging the assumption that these measurements can stand in for each other.[1], [2]
A small association survives between task responses
The task-based emotional ratings and amygdala down-regulation were statistically associated, but the correlation was only 0.08. Participants with a larger reduction in amygdala activity tended to report a slightly larger reduction in negative feelings. Detecting an association that small reliably in an individual study would require more than 1,000 participants. None of the three capacity indicators showed the expected association with canonical prefrontal regulatory circuits. Those circuits were engaged during both emotion generation and reappraisal. Their activation therefore did not specifically identify successful regulation across people. The finding separates a neural response occurring during reappraisal from a measurement that reliably ranks different individuals' ability to perform it.[1], [2]
Across participants, stronger amygdala responses accompanied stronger prefrontal responses. Global differences in task-related brain activity can influence the interpretation of individual regions; blood-vessel responses, measurement noise and head movement are among the potential contributors. The consortium included non-clinical populations, and standard laboratory tasks do not fully reproduce decisions about when to regulate emotions or which strategy to choose in daily life. Carmen Morawetz, a University of Innsbruck researcher involved in designing the study, emphasized that prefrontal regions remain important for regulation. More personally relevant tasks and analyses accounting for global responses are proposed research directions. The results concern the measurement of differences between people and do not establish that existing treatments are ineffective.[1], [2]
