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Sex Differences In Serotonergic And Dopaminergic Mediation Of Lsd Discrimination In Rats, Keli A. Herr

Dissertations

After decades of opposition, a resurgence of interest in the psychotherapeutic potential of LSD is gaining acceptance in the medical community. Future acceptance of LSD as a psychotherapeutic adjuvant may be predicated on knowledge about its neural mechanisms of action. Preclinical drug discrimination assay offers an invaluable model to determine the neural mechanisms underlying LSD’s interoceptive stimulus effects. Unfortunately, current preclinical literature on LSD discrimination is based on results obtained exclusively in male subjects. The present study represents the first known preclinical assessment of possible sex differences in the discriminative stimulus effects of LSD.

Adult female (n=8) and male (n=8) …

Discriminative Stimulus Effects Of 3,4-Methylenedioxypyrovalerone And 4-Methylmethcathinone, Michael D. Berquist

Dissertations

Recent escalation in the popularity of recreational synthetic cathinone (“bath salts”) use has prompted numerous scientific investigations of the neurochemical and behavioral effects of 3,4-methylenedioxypyrovalerone (MDPV) and 4-methylmethcathinone (4-MMC), two of the more common chemical constituents of these illicit “bath salts”. Previous neurochemical and electrophysiological studies have revealed that MDPV functions as a blocker, and 4-MMC as a substrate, at monoamine transporters, and both produce transient increases in extracellular monoamines. In addition, previous research has demonstrated that MDPV and 4-MMC support self-administration in nonhuman experimental subjects, and their rewarding effects are observed when paired with contextual cues in nonhuman models …

Evaluation Of Modafinil In Preclinical Behavioral Assays Of Abuse Liability, Amanda J. Quisenberry

Dissertations

Modafinil is an FDA-approved drug for the treatment of narcolepsy with efficacy in the treatment of chronic fatigue syndrome, obstructive sleep apnea, and shift-work sleep disorder. Modafinil’s wake-promoting and cognitiveenhancing effects are reportedly similar to those of traditional psychostimulants, but without the side effects typically associated with these substances. Modafinil has also been investigated as an agonist replacement therapy for psychostimulant dependence, although results of clinical trials are equivocal. Few studies have examined its behavioral effects in combination with psychostimulants and the neuropharmacological actions of modafinil are not well understood. The primary aim of this study was to assess modafinil’s …