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Focusing on words such as bag, hammer, kiss, and dance, which are subject to functional shift, i.e. alternate between noun and verb, this article argues against the traditional view that a category-changing rule derives verbs from nouns and vice versa. The alternative proposal is that root lexemes in general, and words like these in particular, are semantically underspeci®ed with respect to the noun/verb distinction. The lexical semantic representations of such words include event schemas that are compatible with either noun or verb meanings. The verb vs. noun aspect of the meanings is supplied by the morphosyntactic contexts in which they appear. This analysis is shown to account straightforwardly for the general properties of functional shift, such as its ubiquity, productivity, and semantic regularity, and to be supported by both standard kinds of distributional evidence and neurolinguistic evidence.

This paper offers a comprehensive analysis of the constituent-structure and linearorder properties of English transitive and intransitive V-P constructions involving so-called 'particles' (turn on the lights/the lights on, mess up the song/the song up, shut up, sit down, etc.). Drawing on both standard and certain new evidence and arguments, it is proposed that V-P constructions generally come in one or both of two varieties: lexical compounds (mess up in mess up the song) and/or discontinuous verbs, i.e. lexemes with more than one piece projected as a word or phrase (mess ... up in mess the song up), and that the alternation, for those that have both manifestations, reflects different argument structure possibilities for a lexeme with the same overall conceptual semantics. The internal structure of VPs built on V-P lexemes is examined in some detail. The popular 'small-clause' approach, according to which the DP of transitive V-P structures is the subject of a phrase that has the P as its predicate, is shown to be problematic, primarily because there in fact exists a true small-clause construction that can have a P as its predicate and the putative small clause of cases like mess the song up systematically lacks the defining properties of this construction. The word-order restrictions that the small-clause approach is designed, in part, to account for are shown to follow from a set of independently needed linearization constraints, which are motivated by functional principles.

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The decade of the 1950s is well known among historians of psychiatry for the unprecedented shift toward psychopharmacological solutions to mental health problems. More psychiatric medications were introduced than ever before or since (Healy, 2002). While psychiatric researchers later credited these drugs, in part, for controlling psychotic, depressive, and anxious symptoms-and subsequently for emptying decaying psychiatric institutions throughout the Western world-psychiatrists also produced a number of other theories that relied on a more delicate and nuanced blending of psychotherapy and psychopharmacology. Canadian-based researchers were at the forefront of experiments combining mescaline, LSD, and psychoactive substances later described as "psychedelics." From a relatively isolated setting on the Canadian prairies, in one of the most notorious mental hospitals in North America, this blending of traditions generated a unique approach. A close look at the correspondence between the psychiatrist Humphry Osmond and his friend, the writer Aldous Huxley, who shared interests in psychoactive substances and their effects on perception, and the stimulation of empathy, gives us an opportunity to explore how they developed their psychedelic approach to therapy in the 1950s. The combination of working in an isolated hospital, far from the main research powers in North America, produced a sense of regional incubation and required Osmond to look for collaborators well beyond his own field of psychiatry. (PsycINFO Database Record