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Consolidation of long-term memory: Evidence and alternatives

机译:巩固长期记忆:证据和替代方法

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Memory loss in retrograde amnesia has long been held to be larger for recent periods than for remote periods, a pattern usually referred to as the Ribot gradient. One explanation for this gradient is consolidation of long-term memories. Several computational models of such a process have shown how consolidation can explain characteristics of amnesia, but they have not elucidated how consolidation must be envisaged. Here findings are reviewed that shed light on how consolidation may be implemented in the brain. Moreover, consolidation is contrasted with alternative theories of the Ribot gradient. Consolidation theory, multiple trace theory, and semantization can all handle some findings well but not others. Conclusive evidence for or against consolidation thus remains to be found.
机译:长期以来,逆向性健忘症的记忆力丧失一直被认为比远期更大,这种模式通常被称为Ribot梯度。这种梯度的一种解释是长期记忆的合并。这种过程的几个计算模型已经显示了合并如何解释健忘症的特征,但是他们并未阐明必须如何设想合并。本文对研究结果进行了回顾,阐明了如何在大脑中实现巩固。此外,合并与Ribot梯度的替代理论形成对比。合并理论,多重跟踪理论和正态化都可以很好地处理某些发现,但不能很好地处理其他发现。因此,尚无支持或反对合并的确凿证据。

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