Scratching beneath the surface: intentionality in great ape signal production. (18th November 2019)

• Record Type: Journal Article
• Authors: Graham, Kirsty E.; Wilke, Claudia; Lahiff, Nicole J.; Slocombe, Katie E.
• Is Part Of: Philosophical transactions. Volume 375:Number 1789(2020)
• Publication Date: 2019-11-18
• Subjects: intentional communication -- signal production -- vocalizations -- gestures -- language evolution; Biology -- Periodicals; Science -- Periodicals; 570
• DOI: 10.1098/rstb.2018.0403
• Languages: English
• ISSNs: 0962-8436

Abstract

Abstract : Despite important similarities having been found between human and animal communication systems, surprisingly little research effort has focussed on whether the cognitive mechanisms underpinning these behaviours are also similar. In particular, it is highly debated whether signal production is the result of reflexive processes, or can be characterized as intentional. Here, we critically evaluate the criteria that are used to identify signals produced with different degrees of intentionality, and discuss recent attempts to apply these criteria to the vocal, gestural and multimodal communicative signals of great apes and more distantly related species. Finally, we outline the necessary research tools, such as physiologically validated measures of arousal, and empirical evidence that we believe would propel this debate forward and help unravel the evolutionary origins of human intentional communication. This article is part of the theme issue 'What can animal communication teach us about human language?'