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Is the Devil as Black as He Is Painted? The Effect of Notifications on Attention
In recent years, the question of how the digital environment affects human cognitive functions, and attention in particular, has become increasingly relevant. One of the primary task-irrelevant stimuli in the digital environment is the notification, a transient interface element designed to present new information and redirect attention to a secondary task. This review analyzes empirical studies on visual notifications and their influence on attention, focusing on whether notification characteristics are associated with attentional impairment in ongoing task performance. Across the reviewed literature, notifications are consistently reported as distracting, irritating, or attention-capturing at the subjective level; however, objective behavioral findings remain mixed and inconclusive, and many studies do not assess task accuracy or task-resumption costs directly. The available evidence therefore suggests that notifications may shape metacognitive experience more consistently than they impair behavioral performance. Future research should adopt more standardized behavioral protocols, include both subjective and objective measures, and examine individual differences as potential moderators of notification effects.