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Abstract
Although the peripheral administration of DSIP (delta sleep inducing peptide) to intact animals does not consistently induce behavioral sleep, potentiation of the effect by d-amphetamine has been established earlier. This study investigated DSIP effects in rats following pretreatment with a MPT and/or 1-tryptophan at various dose levels. A clear potentiation was found. Furthermore, pretreatment with methysergide blocked the emergence of sleep signs in various treated groups. It is proposed that the action of DSIP is best understood in the context of mediation via serotonergic mechanisms.
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Notes on contributors
Shlomo Yehuda
Joyce Laing works in the Department of Child and Family Psychiatry, Playfield House, Cupar, Fife, and is a Consultant Art Therapist to Psychiatric Hospitals and Prisons and Chairwoman of the Scottish Society of Art and Psychology.
David I. Mostofsky
Joyce Laing works in the Department of Child and Family Psychiatry, Playfield House, Cupar, Fife, and is a Consultant Art Therapist to Psychiatric Hospitals and Prisons and Chairwoman of the Scottish Society of Art and Psychology.