Gellersen Helena M, Simons Jon S
Department of Psychology, University of Cambridge, Cambridge, UK.
Cogn Neurosci. 2022 Jul;13(3-4):139-140. doi: 10.1080/17588928.2022.2076077. Epub 2022 May 19.
Systems consolidation theory (SCT) proposes that the hippocampus is not required for retrieval of remote memories. In this issue, Tallman and colleagues observe reduced hippocampal-cortical connectivity in recognition memory as a function of memory age, which they interpret as supportive of SCT. We suggest that research seeking to inform this debate would benefit from using perceptually rich stimuli that promote the recollection of high-fidelity contextual details. Tests of recognition alone may not be capable of discerning whether reductions in hippocampal activity or connectivity reflect remote memory retrieval independent of hippocampus (consistent with SCT) or a time-dependent decline in episodic detail.
系统巩固理论（SCT）提出，提取远期记忆并不需要海马体。在本期杂志中，塔尔曼及其同事观察到，随着记忆时长增加，识别记忆中的海马体-皮质连接性降低，他们将此解释为对SCT的支持。我们认为，旨在为这场辩论提供参考依据的研究，若使用能促进对高保真情境细节进行回忆的、感知丰富的刺激，将会从中受益。仅靠识别测试可能无法辨别海马体活动或连接性的降低，是反映了独立于海马体之外的远期记忆提取（与SCT一致），还是情景细节随时间推移而减少。
