This project focuses on understanding the psychological and neural mechanisms that give rise to cognitive control. Cognitive control processes are a component of human mental function that is fundamentally important in a wide range of domains, including attention, working memory, episodic memory, and decision making. Cognitive control disruptions are thought to be a major source of functional impairment for individuals suffering from a variety of mental health disorders and neuropsychiatric diseases, which is why they feature prominently in the NIMH RDoC matrix. Over the last decade, we have developed a theoretically coherent and mechanistic model, the Dual Mechanisms of Control (DMC) framework, which has the following core tenets: 1) cognitive control can operate in distinct modes, proactive and reactive; 2) these modes are associated with unique dynamic neural signatures, involving a shift between sustained and transient engagement of dorsolateral prefrontal cortex (dlPFC) and its interactions with the cingulo-opercular network (CON) and fronto-striatal circuitry; 3) they represent a core dimension of variability, present across a range of cognitive domains (i.e., indicating a psychologically coherent construct); 4) this variability is both state-related (and thus affected by task/situation and endogenous factors) and trait-related (a key component of individual variation); and 5) the variation encompasses cognitive control function in healthy young adults, but also in more extreme forms, contributes to dysfunction present in various impaired populations (e.g., schizophrenia, depression, ADHD, aging). Under a current MERIT award, we have been directly testing these core tenets of the DMC framework, through a large-scale project, which samples monozygotic (MZ) twin pairs and participants from the Human Connectome Project (HCP) and to comprehensively characterize proactive and reactive control at the behavioral, neural, and genetic levels. The current proposal takes full advantage of the extensive infrastructure we have already developed for this project to dramatically expand its scope, explanatory depth, and utility to the scientific community. Specifically, we propose a rigorous, multi-pronged study, that integrates our optimized cognitive control task battery with mindfulness skills training (MT), a longitudinal design with repeated neuroimaging assessments, comprehensive ?neuro-psychometric? characterization of individual variation utilizing state-of-the-art analytic techniques, and incorporation of current best practices (i.e., following Open Science Framework [OSF] recommendations), to maximize the transparency, reproducibility, and ease of dissemination of project tools and findings. Success is in this effort will have important theoretical and clinical implications, by providing a clearer understanding of the sources of normal human variation, and even more importantly, highlighting potential risk vulnerability factors for a range of mental health disorders.
This project will provide detailed information regarding the brain-basis of normal human variation in higher mental functions such as attention, memory and decision-making, and how such functions are impacted by positive lifestyle interventions (i.e., mindfulness training). This information has high relevance for public health by furthering our understanding of the relationship between mental health and illness (e.g., schizophrenia, depression) and of the vulnerability and protective factors that contribute to mental illness risk.
|Cole, Michael W; Patrick, Lauren M; Meiran, Nachshon et al. (2018) A role for proactive control in rapid instructed task learning. Acta Psychol (Amst) 184:20-30|
|Yee, Debbie M; Braver, Todd S (2018) Interactions of Motivation and Cognitive Control. Curr Opin Behav Sci 19:83-90|
|Cole, Michael W; Braver, Todd S; Meiran, Nachshon (2017) The task novelty paradox: Flexible control of inflexible neural pathways during rapid instructed task learning. Neurosci Biobehav Rev 81:4-15|
|Cooper, Shelly R; Gonthier, Corentin; Barch, Deanna M et al. (2017) The Role of Psychometrics in Individual Differences Research in Cognition: A Case Study of the AX-CPT. Front Psychol 8:1482|
|Cole, Michael W; Ito, Takuya; Braver, Todd S (2016) The Behavioral Relevance of Task Information in Human Prefrontal Cortex. Cereb Cortex 26:2497-505|
|Etzel, Joset A; Cole, Michael W; Zacks, Jeffrey M et al. (2016) Reward Motivation Enhances Task Coding in Frontoparietal Cortex. Cereb Cortex 26:1647-59|
|Gonthier, Corentin; Macnamara, Brooke N; Chow, Michael et al. (2016) Inducing Proactive Control Shifts in the AX-CPT. Front Psychol 7:1822|
|Bugg, Julie M; Braver, Todd S (2016) Proactive control of irrelevant task rules during cued task switching. Psychol Res 80:860-76|
|Gonthier, Corentin; Braver, Todd S; Bugg, Julie M (2016) Dissociating proactive and reactive control in the Stroop task. Mem Cognit 44:778-88|
|Chiew, Kimberly S; Braver, Todd S (2016) Reward favors the prepared: Incentive and task-informative cues interact to enhance attentional control. J Exp Psychol Hum Percept Perform 42:52-66|
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