The COVID-19 pandemic has hit humanity globally. Besides its obvious threats to our physical health and economic stability, one can only speculate about the pandemic’s and its countermeasures’ psychosocial impacts. Here, we took advantage of a sample of healthy male participants who had completed psychosocial measures on mental health, environmental concern, and prejudice against asylum-seekers just before and during the nationwide lockdown in Germany in spring 2020. A follow-up assessment of 140 participants during the lockdown provided a unique opportunity to track psychosocial changes in a prospective longitudinal study design. In comparison to before the lockdown (1) mental health worsened, (2) environmental concern increased, and (3) prejudice against asylum-seekers decreased. Our study demonstrates psychosocial “side effects” of the pandemic that bring both challenges and opportunities for our society with regard to the handling of psychological reactions to this pandemic and further global crises, including climate change and mass migration.

COVID-19 大流行在全球范围内袭击了人类。除了对我们的身体健康和经济稳定构成明显威胁外，人们只能推测大流行及其对策的心理社会影响。在这里，我们利用了一个健康男性参与者的样本，这些参与者在 2020 年春季德国全国封锁之前和期间完成了关于心理健康、环境问题和对寻求庇护者的偏见的心理社会措施。 对 140 人的后续评估锁定期间的参与者提供了一个独特的机会来跟踪前瞻性纵向研究设计中的社会心理变化。与封锁前相比，(1) 心理健康恶化，(2) 环境问题增加，(3) 对寻求庇护者的偏见减少。