2023
Altered Resting-State Activity and Connectivity in Late-Life Depression with Suicidal Ideation
Wang L, Manning K, Pearlson G, Steffens D. Altered Resting-State Activity and Connectivity in Late-Life Depression with Suicidal Ideation. American Journal Of Geriatric Psychiatry 2023, 31: e22-e23. DOI: 10.1016/j.jagp.2023.02.031.Peer-Reviewed Original ResearchDefault mode networkVentrolateral prefrontal cortexLate-life depressionFunctional connectivityPrefrontal cortexOlder adultsOlder depressed adultsBrain activityDepressed adultsSuicidal ideationGreater brain activityVisual cortexWeaker functional connectivityStronger functional connectivityResting-state fMRI dataResting-state activitySuicidal behaviorWhole-brain voxelwiseNon-SI groupROI functional connectivityDepression severitySI groupCerebellar cortexCerebellar functional connectivityResting activityAssociation between perceived stress and brain structure volumes in older adults without late-life depression: a key role for the thalamus?
Anam A, Wang L, Pearlson G. Association between perceived stress and brain structure volumes in older adults without late-life depression: a key role for the thalamus? American Journal Of Geriatric Psychiatry 2023, 31: s61-s62. DOI: 10.1016/j.jagp.2022.12.221.Peer-Reviewed Original ResearchLate-life depressionThalamus volumeEarly life stressHC groupLLD groupPrefrontal cortexOlder adultsAnterior cingulateBrain volumeControl groupDuke Depression Evaluation ScheduleMontgomery-Asberg Depression Rating ScaleSimilar findingsHealthy control subjectsDepression Rating ScaleIntracranial brain volumeSignificant differencesSignificant correlationConnecticut Health CenterDorsal anterior cingulateSubcortical brain regionsStandardized acquisition protocolBrain structure volumesVentral anterior cingulateInstitutional review board
2022
Acute cannabis-related alterations in an fMRI time estimation task
Patel K, Stevens M, Adhikari S, Book G, Mubeen M, Pearlson G. Acute cannabis-related alterations in an fMRI time estimation task. 2022 DOI: 10.26828/cannabis.2022.02.000.26.Peer-Reviewed Original ResearchMedial temporal cortexPosterior cingulate cortexSomatosensory motor cortexPremotor cortexMotor cortexTemporal cortexMedial prefrontal cortexCingulate cortexFrontal cortexLong-duration stimuliAnterior cingulateInferior frontal cortexVisual cortexBrain activation differencesMultiple comparison correctionPlacebo conditionActivation differencesDuration stimuliPrefrontal cortexVisual areasOccipital junctionDose-related mannerMid-cingulate cortexSignificant activation differencesPopular recreational drug
2020
O2.6. DELUSIONS ASSOCIATED WITH ABNORMAL FRONTOSTRIATAL EFFECTIVE CONNECTIVITY IN A SPECTRAL DCM ANALYSIS OF RESTING STATE FMRI
Okuneye V, Clementz B, Gershon E, Keshavan M, McDowell J, Pearlson G, Tamminga C, Sweeney J, Keedy S. O2.6. DELUSIONS ASSOCIATED WITH ABNORMAL FRONTOSTRIATAL EFFECTIVE CONNECTIVITY IN A SPECTRAL DCM ANALYSIS OF RESTING STATE FMRI. Schizophrenia Bulletin 2020, 46: s5-s5. PMCID: PMC7234244, DOI: 10.1093/schbul/sbaa028.011.Peer-Reviewed Original ResearchR-DLPFCEffective connectivityState effective connectivityDelusional severityPrefrontal cortexState fMRIRight dorsolateral prefrontal cortexVentrolateral prefrontal cortexDynamic causal modelingDorsolateral prefrontal cortexSignificant effective connectivityEffective connectivity resultsEffective connectivity differencesSpectral dynamic causal modelingResting-state fMRISubcortical brain regionsIntermediate Phenotypes (B-SNIP) studyNeurocognitive processesFMRI studyFrontostriatal connectivityPrediction errorVLPFCFalse beliefsDelusion severityDLPFC
2019
Increased ventromedial prefrontal cortex activity and connectivity predict poor sertraline treatment outcome in late‐life depression
Emam H, Steffens DC, Pearlson G, Wang L. Increased ventromedial prefrontal cortex activity and connectivity predict poor sertraline treatment outcome in late‐life depression. International Journal Of Geriatric Psychiatry 2019, 34: 730-737. PMID: 30761621, PMCID: PMC6480406, DOI: 10.1002/gps.5079.Peer-Reviewed Original ResearchConceptsLate-life depressionSelective serotonin reuptake inhibitorsNonresponder groupFunctional connectivitySSRI responseMADRS scoresResting-state functional magnetic resonance imaging (fMRI) scansMontgomery-Åsberg Depression Rating ScaleMajor depressive disorder patientsPrefrontal cortexMagnetic resonance imaging (MRI) scansFunctional magnetic resonance imaging (fMRI) scansSubgenual cingulate areaSerotonin reuptake inhibitorsDepressive disorder patientsAcute treatment responseResonance imaging scansDepression Rating ScaleLower functional connectivityHigher functional connectivityFalse discovery rate correctionResting-state activityDefault mode networkROI connectivityAntidepressant treatment
1997
449 Prefrontal cortex in schizophrenia: A magnetic resonance imaging study using anatomically relevant landmarks
Vladar K, Buchanan R, Carpenter W, Barta P, Pearlson G. 449 Prefrontal cortex in schizophrenia: A magnetic resonance imaging study using anatomically relevant landmarks. Schizophrenia Research 1997, 24: 159. DOI: 10.1016/s0920-9964(97)82457-7.Peer-Reviewed Original ResearchPrefrontal cortex
1996
Schizophrenia, the heteromodal association neocortex and development: potential for a neurogenetic approach
Ross C, Pearlson G. Schizophrenia, the heteromodal association neocortex and development: potential for a neurogenetic approach. Trends In Neurosciences 1996, 19: 171-176. PMID: 8723199, DOI: 10.1016/s0166-2236(96)10022-9.Peer-Reviewed Original Research