Table 1 Description of the four experimental conditions.
Condition | Demonstrator | Visibility of cuing | Attention getter | Visual referential cue | Signaling content | Auditory tone | Frequency of 1st/2nd/3rd/4th |
|---|---|---|---|---|---|---|---|
Potentially Relevant Auditory Info./Experimenter (1st) | Experimenter (with foreign accent) | Behind folding screen (not fully visible) | [dog's name] + Look! | NA | It’s there! It’s yours! Look! It’s great! | High-pitched | 12/9/4/12 |
Potentially Irrelevant Auditory Info./Experimenter (2nd) | Experimenter (with foreign accent) | Behind folding screen (not fully visible) | Knocking the two bowls together | NA | The weather is really warm today | Neutral | 6/8/14/8 |
Potentially Relevant Auditory Info./Owner (3rd) | Owner | Behind folding screen (not fully visible) | [dog's name] + Look! | NA | It’s there! It’s yours! Look! It’s great! | High-pitched | 9/7/9/12 |
Pointing/Experimenter (4th) | Experimenter (with foreign accent) | In front of folding screen (visible) | [dog's name] + Look! | Pointing | NA | NA | 10/13/9/4 |
