2023
Brain activation during fear extinction recall in unmedicated patients with obsessive-compulsive disorder
Diniz J, Bazán P, Pereira C, Saraiva E, Ramos P, de Oliveira A, Reimer A, Hoexter M, Miguel E, Shavitt R, Batistuzzo M. Brain activation during fear extinction recall in unmedicated patients with obsessive-compulsive disorder. Psychiatry Research Neuroimaging 2023, 336: 111733. PMID: 37913655, DOI: 10.1016/j.pscychresns.2023.111733.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderExtinction recallNeutral stimuliFear conditioningFear extinction recallBlood oxygenation level-dependent (BOLD) responseFear conditioning experimentSkin conductance reactivitySpecific brain activation patternsBrain activation patternsSkin conductance responsesLevel-dependent responsesEntire sampleDACC activationUnmedicated adult patientsFear responsesBrain activationAversive stimuliLingual gyrusUnmedicated samplesActivation patternsHealthy participantsRecallOpercular cortexInsular cortex
2012
Outlining new frontiers for the comprehension of obsessive-compulsive disorder: a review of its relationship with fear and anxiety
Diniz J, Miguel E, de Oliveira A, Reimer A, Brandão M, de Mathis M, Batistuzzo M, Costa D, Hoexter M. Outlining new frontiers for the comprehension of obsessive-compulsive disorder: a review of its relationship with fear and anxiety. Brazilian Journal Of Psychiatry 2012, 34: 81-91. PMID: 22729451, DOI: 10.1590/s1516-44462012000500007.Peer-Reviewed Original ResearchConceptsObsessive-compulsive disorderAnxiety disordersExpression of fearTypes of obsessionsAnimal anxiety modelsFear conditioningCortico-striatal pathwaysFunctional neuroimagingNeurobiological studiesAnxiety modelsOCD patientsOCD onsetExtinction processAnxietyRelevant dimensionsMost interventionsFearDisordersDegree of overlapTreatment responsePsychopathologyComprehensionNeurocircuitryFunctioningFuture studies