Table 2.

List of the analysed variables of the behaviour category “Owner-oriented” and “Loudspeaker-oriented” with the respective definition and the type of recording

Category	Variable	Definition	Type of recording
1. “Owner-oriented”	“Look at owner”	Head orientation towards the owner	Duration
	“Approach the owner”	Dog was initiatively making direct body contact with the owner. The starting position in each trial was always the blanket next to the owner’s chair on which the dog was guided before the playback of each stimulus	Duration
2. “Loudspeaker-oriented”	“Look at loudspeaker”	Head orientation towards the predefined area of the loudspeaker which played back the stimulus	Duration
	“Approach the loudspeaker”	Approach of the loudspeaker, which played back the stimulus, to a distance of at least 10 cm. The starting position in each trial was always the blanket next to the owner’s chair on which the dog was guided before the playback of each stimulus	Duration