Cross-cultural comparison of the neural correlates of true and false memory retrieval

• DOI: 10.1080/09658211.2024.2307923
• Publication Date: 2024-01-24T18:28:29Z
• Authors: Krystal R. Leger; Isu Cho; Ioannis Valoumas; Danielle Schwartz; Ross W. Mair; Joshua Oon Soo Goh; Angela Gutchess
• Keywords: Mnemonic; Fusiform gyrus; Superior frontal gyrus; Middle frontal gyrus; Temporal cortex; Fusiform face area

Prior work has shown Americans have higher levels of memory specificity than East Asians. Neuroimaging studies not investigated mechanisms that account for cultural differences at retrieval. In this study, we use fMRI to assess whether mnemonic discrimination, distinguishing novel from previously encountered stimuli, accounts in memory. Fifty-five American and 55 Taiwanese young adults completed an object recognition paradigm testing discrimination old targets, similar lures foils. Mnemonic was tested by comparing studied results showed the relationship between activity left fusiform gyrus behavioural target lure objects differed across groups. Parametric modulation analyses during correct rejections also indicated groups superior parietal cortex response variations similarity. Additional vs. new differ neural supporting general hippocampus, inferior frontal middle gyrus. Results are juxtaposed against comparisons regions activated common two cultures. Overall, extent which they recruit visual processing attention modulating brain regions.