Proportion of time spent moving (walk, trot or canter)
A
HeadMov (min-1)
Number of rapid head movements per minute
V + A
HeadHigh
Proportion of time spent with the eye line above the tip of the shoulder
V
Chewing
Proportion of time spent chewing (i.e. moving the lower jaw up and down in a chewing motion). This behaviour is performed without the presence of food in the mouth
V + A
VocRate (min-1)
Number of vocalisations (whinnies or nickers) per minute
V (nickers)
LatenceRes
Latency from the onset of the call played back to the first behavioural response (including all the above described behaviours)
-
Vocalisations
Dur (s)
Duration of the whinny
V + A
G0Start (Hz)
Frequency value of G0 at the start of the whinny
V + A
G0Max (Hz)
Maximum G0 frequency value across the whinny
V + A
G0Mean (Hz)
Mean G0 frequency value across the whinny
V + A
F0Start (Hz)
Frequency value of F0 at the start of the whinny
A
F0Max (Hz)
Maximum F0 frequency value across the whinny
V + A
F0Mean (Hz)
Mean F0 frequency value across the whinny
A
AMVar (dB/s)
Cumulative variation in amplitude divided by the total whinny duration
V + A
AMExtent (dB)
Mean peak-to-peak variation of each amplitude modulation
V + A
Q25% (Hz)
Frequency value at the upper limit of the first quartiles of energy
V + A
Q50% (Hz)
Frequency value at the upper limit of the second quartiles of energy
V + A
Q75% (Hz)
Frequency value at the upper limit of the third quartiles of energy
