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Table 2 Loadings of the physiological and behavioural parameters measured during the playbacks on the principal components with eigenvalue > 1 (PC1 to PC3 on a total of 9)

From: Perception of emotional valence in horse whinnies

  

Principal components

Parameters

PC1

PC2

PC3

Physiology

RR

-0.74

0.36

-0.08

RespRate

0.37

-0.58

-0.15

SkinT

0.38

-0.09

-0.39

Behaviour

Locomotion

0.74

-0.35

0.05

HeadMov

0.48

0.51

0.20

HeadHigh

0.40

0.72

0.02

Chewing

0.03

0.15

-0.89

VocRate

0.60

-0.23

0.11

LatenceRes

-0.58

-0.64

0.05

Eigenvalue

 

1.57

1.36

1.02

% variance

 

27.24

20.56

11.49

  1. Bold types indicate the heaviest factor loadings (|r| > 0.40). Eigenvalues and variances explained are given at the bottom of the table (see Table 1 for abbreviation of the parameters)
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Frontiers in Zoology

ISSN: 1742-9994