Conceptual and Neurocognitive Foundations of Cognitive Stamina

Abstract

Objectives: This paper aims to conceptually define cognitive stamina, delimit it from related constructs (cognitive reserve, mental fatigue, psychological resilience), identify its neurobiological and molecular substrates, and outline the theoretical models that explain its dynamics. Prior Work: The study builds on integrative literature (2018–2026) covering executive function, prefrontal cortex physiology, adenosine accumulation, Default Mode Network dynamics, and neural oscillation research. Approach: A systematic bibliographic synthesis was conducted across peer-reviewed journals (Frontiers in Physiology, Brain Sciences, Cognitive Science, Behavioural Brain Research), structured around conceptual delimitation and neurobiological evidence. Results: Cognitive stamina is a dynamic neurofunctional property governed by prefrontal adenosine accumulation and frontoparietal network balance, not a fixed genetic trait. Sustained linear attention is biologically impossible due to theta oscillations. Implications: Findings have direct relevance for academic performance design, professional training, and workplace ergonomics, offering evidence-based frameworks for educators, organizational psychologists, and cognitive neuroscientists. Value: The paper provides a rigorous conceptual taxonomy and integrated neurobiological model of cognitive stamina, bridging psychology, neuroscience, and applied performance science within a coherent theoretical framework.