O.H.P. Burman’s scientific contributions

... Acoustic signals have also been used to assess the affective states of wild animals [16][17][18], both in captivity [19] as well as in a natural wild environment [20,21]. This is possible because when emitting a call an animal uses specific organs such as the larynx, syrinx and vocal fold [16,22], which carry physiological [23], emotional [24,25], and individual information [26,27]. ...

Reference:

Assessing anthropogenic impact on the habitat of threatened rock cavy (Kerodon rupestris) through its alarm calls