Sommer Tobias, Gläscher Jan, Moritz Steffen, Büchel Christian
NeuroImage Nord, Department of Systems Neuroscience, University of Hamburg Medical School, Hamburg 20246, Germany.
Learn Mem. 2008 Aug 6;15(8):569-73. doi: 10.1101/lm.995108. Print 2008 Aug.
According to the modulation hypothesis, arousal is the crucial factor in the emotional enhancement of memory (EEM). However, the multifactor theory of the EEM recently proposed that cognitive characteristics of emotional stimuli, e.g., relatedness and distinctiveness, also play an important role. The current study aimed to investigate the individual contribution of arousal to the neural correlates of the EEM by controlling for these additional cognitive factors. We observed the characteristic neuronal correlates of the EEM, in particular enhanced activity in the amygdala and hippocampus, which provides evidence for an arousal-driven EEM in the amygdala as proposed by the modulation hypothesis.
根据调节假说，唤醒是情绪增强记忆（EEM）的关键因素。然而，最近提出的EEM多因素理论认为，情绪刺激的认知特征，如关联性和独特性，也起着重要作用。本研究旨在通过控制这些额外的认知因素来探究唤醒对EEM神经关联的个体贡献。我们观察到了EEM的特征性神经元关联，特别是杏仁核和海马体活动增强，这为调节假说所提出的杏仁核中由唤醒驱动的EEM提供了证据。
