Como reagimos e interpretamos os latidos dos cães de acordo com a variação acústica?

• Autor(a) principal: Haynes, Thaissa Menezes Pavan
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da Universidade Federal do Espírito Santo (riUfes)
• Texto Completo: http://repositorio.ufes.br/handle/10/1493
• topic: Dog’s bark; Acoustic parameters; Dogs; Interspecific communication; Parâmetros acústicos; Latidos; Comunicação interespecífica; Psicologia; Cão; Cão – Comportamento; 159.9

Dogs share the environment with humans for thousands of years and this relationship becomes closer. Studies show that exists intraspecific communication between dogs. These also show that exist interspecific communication between dogs and humans. Both vocal and non-vocal. The dog bark are presented hypertrophied and is believed to this could be due to the process of domestication. In this study, we investigated how humans perceive the emotional content of barking and how they respond to barking about the degree of perceived irritation, depending on the acoustic characteristics of each call. Sixty participants were divided according to experience with dogs and sex, heard 27 bark sequences previously recorded. The sequences were artificially set up and categorized according to the fundamental frequency, harmonicity and interval between barks. The results confirmed the presupposition that such acoustic parameters are important to human perception of emotional content in the vocalization of dogs and cause an emotional impact on us, irritation. The results were also consistent with the rules of structure-motivation Morton (1977). The lower the fundamental frequency, the greater the perceived aggressiveness. More acute and tonal sounds are related to fear and despair. The lower the harmonicity, i.e., the more harsh, largest aggressiveness. The interval between barks showed significant only in the attribution of aggressiveness, the shorter the interval, the greater the perceived aggressiveness. The correlation between the level of irritation caused by the barking and the perception of emotions showed that the higher the perception of aggression, fear and despair, the greater the degree of irritation and the greater the perception of play and happiness, the lower the degree of irritation caused by barking. These results suggest that the irritation generated by the dog barking is associated to negative emotions. About gender, the men scored significantly higher mean values than women in the evaluation of irritation, which suggests that men may have a lower tolerance for canine call. The results of this study lead us to conclude that humans are able to identify the emotional states of dogs through sound emission. This suggests that there is an interspecific communication between these species and that both share the same acoustic rules of motivation-structural Morton.