Funding for this research was provided by:
German-Israeli Foundation for Scientific Research and Development (I-2416-105.4/2016)
Israel Science Foundation (238/15)
Received: 4 September 2018
Accepted: 25 February 2019
First Online: 29 March 2019
Ethics approval and consent to participate
: The study was approved by the Ethical Committee of the Faculty of Social Sciences of the Hebrew University of Jerusalem. All participants signed a consent form before starting the experiment.
: Consent for the images in Fig. InternalRef removed was obtained.
: The authors declare that they have no competing interests.
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