Table 3. Mirror test.

Behavioral ethogram for reflective side and back side/control conditions.

Behavior	Description
Mirror approach latency	Time (seconds) from beginning of test session until subject has come within approx. 6 inches of the mirror stimulus
Proximity to mirror	Subject is within arm’s length (approx. 6 in) of the mirror stimulus
Partner Approach	Subject moves within monkey arm’s length of mate
Proximity to partner	Subject is within arm’s length of mate and remains for at least 1 second
Partner contact	Subject and mate's bodies are in contact for at least 1 second.
Partner withdraw	Subject moves his body so that he is no longer in physical contact with mate
Movement	Bouts of movement where subject moves entire body at least one body length in continuous motion until immobile for at least 1 second
Lip smack	Subject makes rapid lip movement accompanied by smacking sound (bout)
Back Arch and tail lash	Arousal display that includes raising dorsal surface of the back and/or whipping tail side to side
Tail twine	Subject and mate tails are intertwined at least one full turn for at least 1 second.
Aggression	Subject grabs, hits, or bites mate as a low intensity display of aggression
Restraining	Subject reaches for, holds and/or pulls mate.