由感官（尤其是嗅觉和味觉）激活的自传式记忆可能是最有力和最具影响力的记忆之一，这种体验被称为普鲁斯特效应。当代研究有助于解释这一现象背后的生理、神经和心理原因。由味觉和嗅觉引发的怀旧记忆尤其具有自我相关性、唤起性和熟悉性。与通过其他方式引发的怀旧记忆相比，这些记忆具有更积极的情绪特征，个人报告的消极或矛盾情绪水平较低。由气味和食物引起的怀旧情绪也带来许多心理上的好处，包括增强自尊、社会联系感和更深层次的生活意义。此类记忆可能会在临床或其他环境中得到利用。

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Autobiographical memories activated by the senses, particularly smell and taste, can be among the most potent and influential, an experience labelled the Proust Effect. Contemporary research has helped to explain the physiological, neurological, and psychological reasons underlying this phenomenon. Nostalgic memories triggered by taste and smell are especially self-relevant, arousing, and familiar. These memories have an even more positive emotional profile than nostalgic memories elicited by other means, with individuals reporting lower levels of negative or ambivalent emotions. Scent-evoked and food-evoked nostalgia also confer numerous psychological benefits, including enhanced self-esteem, feelings of social connectedness, and deeper meaning in life. Such memories might be harnessed in clinical or other settings.