Table 4 Association of acoustic parameters predictors for each emotional index, based on a generalized additive model (GAM).

From: Spectro-temporal acoustic elements of music interact in an integrated way to modulate emotional responses in pigs

Emotional

Index

Acoustic parameters

Centroid

Amplitude

Dissonance

HFC

ZCR

Spectral deviation

Pulse (BPM)

Instrumentation

Positive high arousal index

NP

NP

NP

NP

NP

NP

 < 0.001

 < 0.001

Negative high index

NP

NP

NP

0.075

 > 0.1

0.077

 > 0.1

 > 0.1

Positive low emotions index

NP

NP

NP

NP

NP

NP

 < 0.05

 < 0.001

  1. NP parameters considered no predictors for model selected, HFC high frequency content, ZCR zero crossings rate, BPM beats per minute.
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