Dopamine and Neurocognitive Power

This manuscript proposes a neurocognitive framework to explain increasing reports of reduced sustained attention and heightened subjective cognitive effort in highly digitized environments. Rather than attributing these observations to diminished intelligence or structural cognitive decline, the paper advances a reward-calibration model centered on dopaminergic regulation.The framework suggests that chronic exposure to high-frequency, high-novelty digital stimuli may elevate baseline reward expectations. As a result, tasks characterized by delayed reinforcement—such as academic study, analytical work, or sustained reading—may be perceived as disproportionately effortful. This phenomenon is conceptualized as cognitive effort intolerance, defined as reduced tolerance for sustained engagement in delayed-reward tasks despite intact cognitive capacity.The manuscript integrates findings from neuroscience, behavioral economics, and exercise physiology to propose a biologically plausible corrective mechanism: structured physical exercise. Exercise is discussed as a regulatory intervention capable of enhancing dopaminergic efficiency, strengthening prefrontal cortical networks, and recalibrating effort-reward balance.This work is presented as a conceptual model intended to guide future empirical research. Specific hypotheses are proposed for longitudinal behavioral studies, neuroimaging investigations, and randomized exercise interventions.