2024
Frontal Norepinephrine Represents a Threat Prediction Error Under Uncertainty
Basu A, Yang J, Yu A, Glaeser-Khan S, Rondeau J, Feng J, Krystal J, Li Y, Kaye A. Frontal Norepinephrine Represents a Threat Prediction Error Under Uncertainty. Biological Psychiatry 2024, 96: 256-267. PMID: 38316333, PMCID: PMC11269024, DOI: 10.1016/j.biopsych.2024.01.025.Peer-Reviewed Original ResearchPrediction error signalsResponses to conditioned stimuliThreat prediction errorsReinforcement learning modelThreat learningAnticipation of dangerAversive learningMemory strengthConditioned stimulusNoradrenergic signalingDefensive behaviorError signalPrediction errorAuditory stimuliTask structureNorepinephrine releaseNorepinephrineLearning modelsPredictive signalsStimuliFootshockDopamineLearningRewardError
2023
A computational model for learning from repeated traumatic experiences under uncertainty
Kaye A, Rao M, Kwan A, Ressler K, Krystal J. A computational model for learning from repeated traumatic experiences under uncertainty. Cognitive, Affective, & Behavioral Neuroscience 2023, 23: 894-904. PMID: 37165181, PMCID: PMC11149767, DOI: 10.3758/s13415-023-01085-5.Peer-Reviewed Original ResearchPosttraumatic stress disorderTraumatic eventsNovel contextThreat perceptionTreatment of PTSDEarly life traumaNeutral cuesThreat responsesStress disorderLife traumaTraumatic experiencesPrediction errorComputational theorySensory cuesPTSD incidenceNovel predictionsUnpredictable footshockInternal statesComputational modelCuesPerceptionSpecific associationFootshockContextTheory