Department of Psychology.
Department of Psychiatry and Biobehavioral Sciences.
Ann N Y Acad Sci. 2017 May;1396(1):202-221. doi: 10.1111/nyas.13353.
In recent years, investigation into the cognitive and neural mechanisms of autobiographical memory has been aided by the use of experimental paradigms incorporating wearable camera technology. By effortlessly capturing first-person images of one's life events, these cameras provide a rich set of naturalistic stimuli that can later be used to trigger the recall of specific episodes. Here, we chronicle the development and progression of such studies in behavioral and neuroimaging examinations of both clinical and nonclinical adult populations. Experiments examining the effects of periodic review of first-person images of life events have documented enhancements of autobiographical memory retrieval. Such benefits are most pronounced in patients with memory impairments, but there is mounting evidence that cognitively healthy individuals may benefit as well. Findings from functional magnetic resonance imaging experiments using wearable camera stimuli as retrieval probes have produced results that, although largely consistent with the broader episodic memory literature, have significantly extended prior findings concerning the underlying mnemonic processes and the neural representation of autobiographical information. Taken together, wearable camera technology provides a unique opportunity for studies of autobiographical memory to more closely approximate real-world conditions, thus offering enhanced ecological validity and opening up new avenues for experimental work.
近年来，通过使用结合可穿戴相机技术的实验范式，对自传体记忆的认知和神经机制的研究得到了促进。这些相机毫不费力地捕捉到一个人生活事件的第一人称图像，为后来触发特定事件的回忆提供了丰富的自然刺激。在这里，我们记录了在行为和神经影像学对临床和非临床成年人群体的研究中，这种技术的发展和进展。研究表明，定期回顾生活事件的第一人称图像会增强自传体记忆的检索。这种益处在记忆障碍患者中最为明显，但越来越多的证据表明认知健康的个体也可能从中受益。使用可穿戴相机刺激作为检索探针的功能磁共振成像实验的结果虽然与更广泛的情景记忆文献基本一致，但大大扩展了先前关于潜在记忆过程和自传体信息的神经表示的发现。总之，可穿戴相机技术为自传体记忆研究提供了一个独特的机会，可以更接近现实世界的条件，从而提高生态有效性，并为实验工作开辟新途径。
