期刊
HUMAN BRAIN MAPPING
卷 42, 期 7, 页码 2115-2127出版社
WILEY
DOI: 10.1002/hbm.25353
关键词
emotional memory; emotional perception; fMRI; prefrontal cortex; sensory representations; visual cortex
资金
- Korea Health Industry Development Institute [HI15C3175]
- Ministry of Trade, Industry and Energy [20012464]
- National Research Foundation [NRF-2017M3C7A1031333, NRF2020R1A2C2007770]
- National Research Foundation of Korea [2017M3C7A1031333] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The study found that the prefrontal cortex has a differential impact on the processing of emotional information compared to neutral information, leading to better memory for semantic components of emotional stimuli. This suggests that emotional stimuli are more directly influenced by higher-order information from the prefrontal cortex during sensory representation.
Emotion is thought to cause focal enhancement or distortion of certain components of memory, indicating a complex property of emotional modulation on memory rather than simple enhancement. However, the neural basis for detailed modulation of emotional memory contents has remained unclear. Here has been shown that the information processing of the prefrontal cortex differentially affects sensory representations during experience of emotional information compared with neutral information, using functional magnetic resonance imaging (fMRI). It was found that during perception of emotional pictures, information representation in primary visual cortex (V1) significantly corresponded with the representations in dorsolateral prefrontal cortex (dlPFC). This correspondence was not observed for neutral pictures. Furthermore, participants with greater correspondence between visual and prefrontal representations showed better memory for high-level semantic components but not for low-level visual components of emotional stimuli. These results suggest that sensory representation during experience of emotional stimuli, compared with neutral stimuli, is more directly influenced by internally generated higher-order information from the prefrontal cortex.
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