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Article History

Received: 26 March 2020

Accepted: 4 September 2020

First Online: 22 September 2020

Change Date: 8 December 2020

Change Type: Update

Change Details: Open Access Funding note was added to backmatter text of the article. This article has been updated to correct this.

Ethics approval and consent to participate

: The study was approved by the regional ethics committee of Stockholm. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all individual participants included in the study. Prior to the experiment, all participants were informed that the study was about learning of fear and that it included mild electrical shocks that would be uncomfortable, but not painful. Participants were informed that participation was voluntary and that they were free to stop the experiment at any time point if they wished to. To ensure that participants had fully understood the nature of the task, this information was given both verbally and in written form.

: Not applicable.

: The authors declare that they have no competing interests.