hallucinogenn.

1954 A. Hoffer et al. in Jrnl. Mental Sci. C. 30 When the literature is examined to catalogue these hallucinatory substances, which for convenience we have called the hallucinogens, one is struck by their small number.

1954 A. Huxley Doors of Perception 6 Lysergic acid, an extremely potent hallucinogen derived from ergot.

1955 Jrnl. Mental Sci. 101 318 There are so few hallucinogens known that we must study intensively the types of sub~groups and molecules which cause hallucinations.

1958 New Scientist 28 Aug. 715/3 More recently..several hallucinogens have been observed which produce, in addition to other symptoms of schizophrenia, auditory hallucinations.

1969 Times 24 Jan. 6/6 The fly agaric fungus yields one of the most potent and anciently used hallucinogens, inducing a slight trembling followed by illusions.

1952 Jrnl. Mental Sci. 98 311 There are many other hallucinogenic drugs, but none has either such striking properties or such a simple chemical constitution as mescaline.

1958 Sci. News 47 36 Other lines of research..include the search for substances that antagonize the hallucinogenic drugs.

1959 Times Lit. Suppl. 27 Feb. 113/4 We believe our evidence points to a role for the hallucinogenic mushroom in the origins of the religious idea in primitive society.

1960 Times 31 Dec. 9/7 A liana of which the boiled juice has hallucinogenic effects.

1965 Listener 23 Sept. 465/1 It is a powerful mind-changer of the hallucinogenic variety.

1968 Times 13 Nov. 16/1 Many well known hallucinogenic drugs, such as LSD and mescaline, cause mice to exhibit the curious behaviour pattern of head twitching.