This volume offers insights on experimental and empirical research in theoretical linguistic issues of negation and polarity, focusing on how negation is marked and how negative polarity is emphatic and how it interacts with double negation. Metalinguistic negation and neg-raising are also explored in the volume. Leading specialists in the field present novel ideas by employing various experimental methods in felicity judgments, eye tracking, self-paced readings, prosody and ERP. Particular attention is given to extensive crosslinguistc data from French, Catalan and Korean along with analyses using semantic and pragmatic methods, corpus linguistics, diachronic perspectives and longitudinal acquisitional studies as well as signed and gestural negation. Each contribution is situated with regards to major previous studies, thereby offering readers insights on the current state of the art in research on negation and negative polarity, highlighting how theory and data together contributes to the understanding of cognition and mind.

Why do grammars change? The cycle of negation proposed by Jespersen is crucially linked to the status of items and phrases. The definition of criteria establishing when a polarity item becomes a negative element, and the identification of the role of phrases for the evolution of negation are the two objectives pursued by the contributions to this volume. The contributions look at the emergence of negative items, and their relation within a given sentence, with particular reference to English and French. The comparative perspective supports the documentation of the fine-grained steps that shed light on the factors that (i) determine change and those that (ii) accompany actuation, which are considered through a dialogue between functionalist and formalist approaches. By looking at the place of negation in the architecture of the sentence, they take up the debate as to the relevance of phrasal projections and consider the role of features. Focusing on the make-up of individual items makes it possible to re-conceptualise the Jespersen cycle as the apparent result of the documented evolution patterns of individual (series of) items. This novel perspective is solidly grounded on an extensive use of the complete, up to date bibliography, and will contribute to shape future research.