Behavioral adjustment moderates the effect of neuroticism on brain volume relative to intracranial volume
Behavioral adjustment moderates the effect of neuroticism on brain volume relative to intracranial volume
复制标题
行为调整调节神经质对脑容量相对于颅内容积的影响
DOI:
10.1111/jopy.12858
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发表时间:
2023
影响因子:
5
通讯作者:
Kitayama, Shinobu
中科院分区:
文献类型:
--
作者:
Yu, Qinggang;Schaefer, Stacey M.;Davidson, Richard J.;Kitayama, Shinobu
ObjectiveThe present study examined whether the effect of neuroticism on brain structure is moderated by behavioral adjustment.BackgroundNeuroticism is widely thought to be harmful to health. However, recent work using proinflammatory biomarkers showed that this effect depends on behavioral adjustment, the willingness and ability to adjust and cope with environmental contingencies, such as different opinions of others or unpredictable life situations. Here, we sought to extend this observation to “brain health” by testing total brain volume (TBV).MethodUsing a community sample of 125 Americans, we examined structural magnetic resonance imaging of the brain and quantified TBV. We tested whether the effect of neuroticism on TBV was moderated by behavioral adjustment, net of intracranial volume, age, sex, educational achievement, and race.ResultsBehavioral adjustment significantly moderated the effect of neuroticism on TBV, such that neuroticism was associated with lower TBV only when behavioral adjustment was low. There was no such effect when behavioral adjustment was high.ConclusionThe present findings suggest that neuroticism is not debilitating to those who constructively cope with stress. Implications are further discussed.