Your voice pitch speaks volumes about you: How voice pitch affects mind perception of the speakers.

Abstract

Three studies investigated how speakers' pitch affects listeners' attribution of mental capacity (e.g., the ability to feel emotions and physical sensations such as pain and pleasure; Gray et al., Science, 315, 2007, 619) to them and further explored downstream effects on social judgements. In Study 1 (N=234), participants perceived more experience in higher-(vs. lower-)pitched speakers, whereas there was no significant difference in perception of agency to lower pitched or higher pitched speakers. In later studies, we expanded the relationship between male speakers' pitch and attributed experience in diverse contexts and observed that participants attributed more experience to higher pitched male victims, which was related to higher estimation of harm severity, leading to more negative judgement of the harmdoers (Study 2; N=121) as well as recommendation for stronger treatment for the speakers (Study 3; N=116). Our findings indicate that mind perception can vary as a function of targets' voice pitch, and in turn may influence people's judgements involving the speakers, as well as behavioural intentions towards them.