Department of Psychology, University of California, Berkeley, CA 94720-1650, USA.
Cortex. 2013 Jul-Aug;49(7):1901-9. doi: 10.1016/j.cortex.2012.09.009. Epub 2012 Sep 21.
The generation effect is a robust memory phenomenon in which actively producing material during encoding acts to improve later memory performance. In a functional magnetic resonance imaging (fMRI) analysis, we explored the neural basis of this effect. During encoding, participants generated synonyms from word-fragment cues (e.g., GARBAGE-W_ST_) or read other synonym pairs (e.g., GARBAGE-WASTE). Compared to simply reading target words, generating target words significantly improved later recognition memory performance. During encoding, this benefit was associated with a broad neural network that involved both prefrontal (inferior frontal gyrus, middle frontal gyrus) and posterior cortex (inferior temporal gyrus, lateral occipital cortex, parahippocampal gyrus, ventral posterior parietal cortex). These findings define the prefrontal-posterior cortical dynamics associated with the mnemonic benefits underlying the generation effect.
生成效应是一种强大的记忆现象，即在编码过程中主动生成材料可以提高后期的记忆表现。在一项功能磁共振成像 (fMRI) 分析中，我们探讨了这种效应的神经基础。在编码阶段，参与者根据单词碎片提示生成同义词（例如，GARBAGE-W_ST_）或阅读其他同义词对（例如，GARBAGE-WASTE）。与简单地阅读目标单词相比，生成目标单词显著提高了后期的识别记忆表现。在编码阶段，这种益处与一个广泛的神经网络相关联，该网络涉及前额叶（额下回、额中回）和后皮质（颞下回、外侧枕叶皮质、海马旁回、腹后顶叶皮质）。这些发现定义了与生成效应的记忆益处相关的前额叶-后皮质动力学。
