Table 2 Principal component analysis.

From: Music modulates emotional responses in growing pigs

Emotional response

PC1

Positive emotions index

PC2

Negative emotions index

Active

0.84

0.38

Relaxed

0.09

− 0.79

Fearful

− 0.15

0.71

Agitated

0.62

0.48

Calm

0.11

− 0.78

Content

0.94

0.02

Indifferent

− 0.42

− 0.41

Friendly

0.90

− 0.15

Playful

0.95

0.02

Positively occupied

0.73

− 0.19

Lively

0.82

0.04

Inquisitive

− 0.13

0.79

Irritable

0.43

0.35

Uneasy

− 0.26

0.60

Sociable

0.91

− 0.14

Happy

0.95

− 0.07

% of variance

44.45

21.67

  1. Loadings for the 16 emotional states of qualitative behavior assessment (QBA). Loadings greater than 0.6 are bolded and were used to define the indexes identified in the analysis.
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