Resting-state functional connectivity does not predict individual differences in the effects of emotion on memory

被引:5
作者
Kandaleft, Dona [1 ,2 ]
Murayama, Kou [1 ,2 ,3 ,4 ]
Roesch, Etienne [1 ,2 ]
Sakaki, Michiko [1 ,2 ,3 ,4 ]
机构
[1] Univ Reading, Sch Psychol & Clin Language Sci, Reading, Berks, England
[2] Univ Reading, Ctr Integrat Neurosci & Neurodynam, Reading, Berks, England
[3] Univ Tubingen, Hector Inst Educ Sci & Psychol, Tubingen, Germany
[4] Kochi Univ Technol, Res Inst, Kochi, Japan
基金
日本学术振兴会; 英国生物技术与生命科学研究理事会; 英国医学研究理事会;
关键词
OLDER-ADULTS; EPISODIC MEMORY; AUTOBIOGRAPHICAL MEMORY; COGNITIVE NEUROSCIENCE; NETWORK CONNECTIVITY; PREFRONTAL CORTEX; BRAIN NETWORKS; RANDOM FOREST; AMYGDALA; FMRI;
D O I
10.1038/s41598-022-18543-8
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Emotion-laden events and objects are typically better remembered than neutral ones. This is usually explained by stronger functional coupling in the brain evoked by emotional content. However, most research on this issue has focused on functional connectivity evoked during or after learning. The effect of an individual's functional connectivity at rest is unknown. Our pre-registered study addresses this issue by analysing a large database, the Cambridge Centre for Ageing and Neuroscience, which includes resting-state data and emotional memory scores from 303 participants aged 18-87 years. We applied regularised regression to select the relevant connections and replicated previous findings that whole-brain resting-state functional connectivity can predict age and intelligence in younger adults. However, whole-brain functional connectivity predicted neither an emotional enhancement effect (i.e., the degree to which emotionally positive or negative events are remembered better than neutral events) nor a positivity bias effect (i.e., the degree to which emotionally positive events are remembered better than negative events), failing to support our pre-registered hypotheses. These results imply a small or no association between individual differences in functional connectivity at rest and emotional memory, and support recent notions that resting-state functional connectivity is not always useful in predicting individual differences in behavioural measures.
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页数:14
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