Measures of conditioned emotional response

Measures of conditioned emotional response are used by researchers in classical conditioning experiments to assess the conditioned emotional response in subjects.

Movement ratio
The movement ratio is the proportion of time during the presentation of a conditioned stimulus that the subject is displaying elicited behavior. Movement ratio is defined as

$$MR = Tb / Tt$$

Where MR = Movement Ratio, Tb=Time displaying the elicited behavior and Tt = Total time of CS presentation

Suppression ratio
The suppression ratio is equal to the response rate during a CS presentation divided by the sum of response rate during the CS plus the response rate in the period immediately preceding the CS. In other terms:

$$SR = D / (D+B)$$.

Where SR = Suppression Ratio, D = Responding during CS and B = Responding before CS.