Table 2.

Defined mouse behavioral indices and associated behaviors (Sousa et al., 2006, Schellinck et al., 2010).

Behavior	Definition	Behavioral Indices
Exploratory	Time spent exploring the environment while in motion.	Anxiety
Freezing	Duration with which the mouse was completely stationary for any given amount of time.	Fear
Grooming	Incidence/duration in which the animal is spent time licking or scratching itself while stationary.	Anxiety
Stretch attenuated posture	Frequency with which the mouse demonstrates forward elongation of the head and shoulders followed by retraction to the original position.	Risk assessment/anxiety