A number of popular research areas suggest that cognitive performance can be manipulated via relatively brief interventions; however, recent evidence indicates that cognitive abilities might not be as malleable as preliminary findings implied

Moreau, D. (2021). How malleable are cognitive abilities? A critical perspective on popular brief interventions. American Psychologist, Dec 2021. https://doi.org/10.1037/amp0000872

Abstract: A number of popular research areas suggest that cognitive performance can be manipulated via relatively brief interventions. These findings have generated a lot of traction, given their inherent appeal to individuals and society. However, recent evidence indicates that cognitive abilities might not be as malleable as preliminary findings implied and that other more stable factors play an important role. In this article, I provide a critical outlook on these trends of research, combining findings that have mainly remained segregated despite shared characteristics. Specifically, I suggest that the purported cognitive improvements elicited by many interventions are not reliable, and that their ecological validity remains limited. I conclude with a call for constructive skepticism when evaluating claims of generalized cognitive improvements following brief interventions.