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Donna J. Calu

3 papers in the library · 3 citations · publishing 2020-2024

Papers

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Effects of psychedelic, DOI, on nucleus accumbens dopamine signaling to predictable rewards and cues in rats

Neuropsychopharmacology July 6, 2024 David Martin, Angel M. Delgado, Donna J. Calu 3 citations

Psychedelics produce lasting therapeutic responses in neuropsychiatric diseases suggesting they may disrupt entrenched associations and catalyze learning. Here, we examine psychedelic 5-HT2A/2C agonist, DOI, effects on dopamine signaling in the nucleus accumbens (NAc) core, a region extensively linked to reward learning, motivation, and drug-seeking. We measure phasic dopamine transients...

The psychedelic, DOI, increases dopamine release in nucleus accumbens to predictable rewards and reward cues

bioRxiv (Cold Spring Harbor Laboratory) March 31, 2024 David Martin, Á.v. Delgado, Donna J. Calu preprint

Abstract Psychedelics produce lasting therapeutic responses in neuropsychiatric diseases suggesting they may disrupt entrenched associations and catalyze learning. Here, we examine psychedelic effects on dopamine signaling in the nucleus accumbens (NAc) core, a region extensively linked to reward learning, motivation, and drug-seeking. We measure phasic dopamine transients following acute...

DOI: 10.1101/2024.03.29.587390 (opens in new tab) Full text (opens in new tab) Addiction Nucleus accumbens Reward system Cognitive psychology +2

Effects of 5-HT2A Receptor Stimulation on Economic Demand for Fentanyl after Intermittent and Continuous Access Self-Administration in Male Rats

Addiction Biology May 26, 2020 David Martin, Utsav Gyawali, Donna J. Calu

The relative value of and motivation for abused drugs often increases with drug experience and differs based on drug availability. Here, we determined how different intake patterns of fentanyl, a μ‐opioid agonist, alter economic demand for fentanyl and how 5‐HT2A receptor stimulation affects economic demand for fentanyl. We used a within‐session demand threshold procedure to characterize...