The time course of authenticity and valence perception in nonverbal emotional vocalizations

• Autor(a) principal: Menezes, Elisabete Sofia Nabais de Oliveira de Freitas e
• Data de Publicação: 2022
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10071/27039
• topic: Nonverbal vocalization; Authenticity; Valence; Time course; Vocalizações não verbais; Autenticidade; Valência; Espaço temporal

There is evidence that the recognition of sadness and happiness in nonverbal vocalizations reaches an adult standard before the recognition of anger and fear, and that men and women are equally good at recognizing emotions, regardless of whether male or female speakers produce them. Still, there is no evidence regarding how much time we need to identify the authenticity of vocal emotional expressions, as well as the type of vocalization itself. How much acoustic information do we need to perceive if a vocal expression, such as a laughter, is authentic or voluntary? How long does it take to perceive if its laughter or crying? The present study addresses these questions. The main objective is to determine the time course of authenticity and type of vocalization recognition in laughter and crying sounds. For this purpose, the procedure was done using a gating paradigm and a sample of 395 participants. Results showed that the recognition accuracy of nonverbal vocalizations improves with the increase of the gate duration, and that the identification of the type of vocalization (laughter vs. crying) happens at earlier stages than the identification of their authenticity (authentic vs. voluntary).