Humans massively depend on communication with others, but this leaves them open to the risk of being accidentally or intentionally misinformed. To ensure that, despite this risk, communication remains advantageous, humans have, we claim, a suite of cognitive mechanisms for epistemic vigilance. Here we outline this claim and consider some of the ways in which epistemic vigilance works in mental and social life by surveying issues, research and theories in different domains of philosophy, linguistics, cognitive psychology and the social sciences.

The idea that verbal communication involves a species of mindreading is not new. Among linguists and philosophers, largely as a result of Grice’s (1957, 1967) influence, it has long been recognized that the act of communicating involves on the part of the communicator and the addressee mutual metarepresentations of each others’ mental states. In psychology, the coordination of common ground and attention in conversation has been pursued in a variety of studies (e.g. Clark and Marshall, 1981; Bruner, 1983).

The work reported in this paper investigated the putative functional dependence of pragmatic language skills on general mind‐reading capacity by testing theory‐of‐mind abilities and understanding of non‐literal speech in patients with schizophrenia and in healthy controls. Patients showed difficulties with inferring mental states on a false‐belief picture‐sequencing task and with understanding metaphors and irony on a story‐comprehension task. These difficulties were independent of low verbal IQ and a more generalised problem inhibiting prepotent information. Understanding of metaphors and understanding of irony (...) made significant and independent contributions to discriminating patients from controls, suggesting that metaphor and irony make distinct pragmatic demands. (shrink)

The ability of 3- and 4-year-old children to disregard advice from an overtly misleading informant was investigated across five studies (total n = 212). Previous studies have documented limitations in young children's ability to reject misleading advice. This study was designed to test the hypothesis that these limitations are primarily due to an inability to reject specific directions that are provided by others, rather than an inability to respond in a way that is opposite to what has been indicated by (...) a cue. In Studies 1 through 4, a puppet identified as The Big Bad Wolf offered advice to participants about which of two boxes contained a hidden sticker. Regardless of the form the advice took, 3-year olds performed poorly by failing to systematically reject it. However, when participants in Study 5 believed they were responding to a mechanical cue rather than the advice of the Wolf, they were better able to reject misleading advice, and individual differences in performance on the primary task were systematically correlated with measures of executive function. Results are interpreted as providing support for the communicative intent hypothesis, which posits that children find it especially difficult to reject deceptive information that they perceive as being intentionally communicated by others. (shrink)

What is the nature of children's trust in testimony? Is it based primarily on evidential correlations between statements and facts, as stated by Hume, or does it derive from an interest in the trustworthiness of particular speakers? In this essay, we explore these questions in an effort to understand the developmental course and cognitive bases of children's extensive reliance on testimony. Recent work shows that, from an early age, children monitor the reliability of particular informants, differentiate between those who make (...) true and false claims and keep that differential accuracy in mind when evaluating new information from these people. We argue that this selective trust is likely to involve the mentalistic appraisal of speakers rather than surface generalizations of their behavior. Finally, we review the significance of children's deference to adult authority on issues of naming and categorization. In addition to challenging a purely inductive account of trust, these and other findings reflect a potentially rich set of tools brought by children to the task of learning from people's testimony. (shrink)

Utterances can convey more information than they explicitly encode, and speakers exploit communicative conventions in order to say more with less. However, the burden this places on perceivers is not well understood. This chapter examines the effect of speaker-specific information on pragmatic inferences using data from an experiment which investigated the time course of the use of pragmatic information in language comprehension. Previous evidence suggests that comprehenders who encounter a referential form, including a modifier that commonly indicates contrastiveness, assume that (...) the referential form is being used contrastively. Thus, they consequently look to the relevant object in the scene very early when processing the referential expression. In this case, people appear to be implicitly following H. P. Grice’s maxim of quantity. This chapter demonstrates that comprehenders stop using contrastive information early in resolving reference when speakers consistently do not use contrastive elements appropriately, consistent with a pragmatic explanation of referential contrast effects. (shrink)

Typical theory of mind tasks assess children’s ability to attribute a false belief in order to predict or explain an action. According to these standard tasks, young children do not represent the independent (mistaken) beliefs of others until the fourth year—yet long before this, children are able to track speakers’ intentions in order to learn new words. Might communication be a privileged domain for theory of mind? In the present study we explored pre‐schoolers’ ability to track a false belief in (...) order to acquire a novel word. A puppet labeled a novel object in a false belief condition (contents of a box had been switched without her knowledge), and a true belief condition (contents switched in her presence). Children were significantly better at tracking the puppet’s false belief in the word‐learning task than in a standard false belief test. Possible reasons for this advantage are discussed, and the suggestion made that representation of mental states may emerge precociously in the service of communication. (shrink)

Sperber suggests that competent hearers can deploy sophisticated interpretative strategies in order to cope with deliberate deception or to avoid misunderstandings due to speaker’s incompetence. This paper investigates the cognitive underpinnings of sophisticated interpretative strategies and suggests that they emerge from the interaction between a relevance-guided comprehension procedure and epistemic vigilance mechanisms. My proposal sheds a new light on the relationship between comprehension and epistemic assessment. While epistemic vigilance mechanisms are typically assumed to assess the believability of the output of (...) the comprehension system, I argue that epistemic assessment plays an additional role in determining this very output. (shrink)