2024
Pulsed nicotine infusions as a model for smoking: validating a tool to explore nicotine thresholds in humans
Parida S, MacLean R, Gueorguieva R, Sofuoglu M. Pulsed nicotine infusions as a model for smoking: validating a tool to explore nicotine thresholds in humans. Psychopharmacology 2024, 241: 1915-1922. PMID: 38970644, DOI: 10.1007/s00213-024-06609-6.Peer-Reviewed Original ResearchDiscriminative stimulus effectsAddiction thresholdNicotine doseDiscriminative stimulus effects of nicotineStimulus effects of nicotineNicotine deliveryEffects of nicotineOvernight abstinenceStimulus effectsNicotine infusionSubjective effectsTest sessionsNicotineMethodsEleven participantsInfusion procedureLow dosesParticipantsThreshold doseConclusionsTheseAbstinenceDoseHeart rateInfusionSmokingObjectivesTo
2021
The feasibility of an in‐scanner smoking lapse paradigm to examine the neural correlates of lapses
Lydon‐Staley D, MacLean RR, Falk EB, Bassett DS, Wilson SJ. The feasibility of an in‐scanner smoking lapse paradigm to examine the neural correlates of lapses. Addiction Biology 2021, 26: e13001. PMID: 33508880, PMCID: PMC8225575, DOI: 10.1111/adb.13001.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingFunctional brain systemsCognitive controlBrain systemsDefault mode systemLapse behaviorSmoking cessation attemptFrontoparietal systemNeural correlatesMonetary rewardsBehavioral paradigmsNeural activityInitial evidenceScanning sessionSmoking abstinenceCessation attemptsDaily smokersTime-varying changesSingle scanning sessionQuitting smokingBehavioral modelMagnetic resonance imagingAbstinenceParticipantsParadigm