In some languages every statement must contain a specification of the type of evidence on which it is based: for example, whether the speaker saw it, or heard it, or inferred it from indirect evidence, or learnt it from someone else. This grammatical reference to information source is called 'evidentiality', and is one of the least described grammatical categories. Evidentiality systems differ in how complex they are: some distinguish just two terms (eyewitness and noneyewitness, or reported and everything else), while (...) others have six or even more terms. Evidentiality is a category in its own right, and not a subcategory of epistemic or some other modality, nor of tense-aspect. Every language has some way of referring to the source of information, but not every language has grammatical evidentiality. In English expressions such as I guess, they say, I hear that, the alleged are not obligatory and do not constitute a grammatical system. Similar expressions in other languages may provide historical sources for evidentials. True evidentials, by contrast, form a grammatical system. In the North Arawak language Tariana an expression such as "the dog bit the man" must be augmented by a grammatical suffix indicating whether the event was seen, or heard, or assumed, or reported. This book provides the first exhaustive cross-linguistic typological study of how languages deal with the marking of information source. Examples are drawn from over 500 languages from all over the world, several of them based on the author's original fieldwork. Professor Aikhenvald also considers the role evidentiality plays in human cognition, and the ways in which evidentiality influences human perception of the world.. This is an important book on an intriguing subject. It will interest anthropologists, cognitive psychologists and philosophers, as well as linguists. (shrink)

This essay reviews current work in conversation analysis with an eye to what it might contribute to the study of evidentiality and epistemic asymmetry. After a brief review of some aspects of the interactional organization of conversation, I turn to consider the way in which participants negotiate relative epistemic positioning through the use of particular practices of speaking. The analytic focus here is on agreements and confirmations especially in assessment sequences. In conclusion, I consider a single case in which various (...) practices are employed to convey a delicate balance of knowledge and simultaneously to attend to a range of other, non-epistemic, interactional issues. (shrink)

This work addresses the relation among the semantic-pragmatic categories of evidentiality, epistemicity and intensification based on a study of the discursive use of certain Spanish idiomatic phraseological units. The first part offers an introduction to some theoretical aspects, while the second part analyses the usage of the idiom a fe que. Two important theses that are defended in this article are as follows: evidentiality has played an important role in the process of lexicalisation and grammaticalisation of a number of idiomatic (...) phraseological units and some evidential expressions display the existence of close relationships among evidentiality, epistemicity and intensification. (shrink)