Supporting Online Material

Empathy and Pro-Social Behavior in Rats

Inbal Ben-Ami Bartal, Jean Decety, Peggy Mason

Materials/Methods, Supporting Text, Tables, Figures, and/or References

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  • Materials and Methods
  • Fig. S1
  • Table S1
  • Reference (28)
  • Captions for Movies S1 and S2

Images, Video, and Other Other Media

Movie S1
Five minutes of activity from representative rats in the object, empty and trapped conditions are shown. All movies are sped up by 6 times.
Movie S2
Learning to open the door. Activity of the same free rat on days 1, 5, and 12 of the paradigm is shown. On day 1, the rat does not open the restrainer and 5 min of activity is shown at 20 times real time speed. On day 5, the rat opens the restrainer door for the first time 25 min into the session. Note the momentary startle at the door falling and the extended interaction with the liberated rat. On day 12, the rat opens the restrainer within the first minute. There is no startle and much less interaction between the two rats. Activity from days 5 and 12 are shown at real time.

Note: A version of these videos narrated by author Peggy Mason can be found on Science's VideoLab portal.