Search results for "Fear network"

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GLRB allelic variation associated with agoraphobic cognitions, increased startle response and fear network activation: a potential neurogenetic pathw…

2017

Contains fulltext : 177350.pdf (Publisher’s version ) (Closed access) The molecular genetics of panic disorder (PD) with and without agoraphobia (AG) are still largely unknown and progress is hampered by small sample sizes. We therefore performed a genome-wide association study with a dimensional, PD/AG-related anxiety phenotype based on the Agoraphobia Cognition Questionnaire (ACQ) in a sample of 1370 healthy German volunteers of the CRC TRR58 MEGA study wave 1. A genome-wide significant association was found between ACQ and single non-coding nucleotide variants of the GLRB gene (rs78726293, P=3.3 x 10-8; rs191260602, P=3.9 x 10-8). We followed up on this finding in a larger dimensional AC…

0301 basic medicineMaleStartle responseReflex StartleQH301 BiologyGenome-wide association studyGene mutationAnxiety0302 clinical medicineCognitionReceptors GlycineGene FrequencyGermanyGWASHyperekplexiaGeneticsPanic disordermedicine.diagnostic_testStartleBrainFearGLRBAnxiety DisordersPsychiatry and Mental healthSchizophreniaUrological cancers Radboud Institute for Health Sciences [Radboudumc 15]Panic DisorderFemalemedicine.symptomPsychologyBDCRC0321 Neuroscience. Biological psychiatry. NeuropsychiatryClinical psychologyAdultGenotypeNDASQH426 Genetics03 medical and health sciencesCellular and Molecular NeuroscienceQH301Fear networkSpastic mousemedicineHumansGenetic Predisposition to DiseaseMolecular BiologyQH426AgoraphobiaAllelesNeurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7]Panic disorderOther Research Radboud Institute for Health Sciences [Radboudumc 0]medicine.diseaseStartle reaction030104 developmental biologyMCPCase-Control StudiesMutationRC0321030217 neurology & neurosurgeryAgoraphobiaGenome-Wide Association StudyMolecular psychiatry
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Excitability regulation in the dorsomedial prefrontal cortex during sustained instructed fear responses: a TMS-EEG study

2018

AbstractThreat detection is essential for protecting individuals from adverse situations, in which a network of amygdala, limbic regions and dorsomedial prefrontal cortex (dmPFC) regions are involved in fear processing. Excitability regulation in the dmPFC might be crucial for fear processing, while abnormal patterns could lead to mental illness. Notwithstanding, non-invasive paradigms to measure excitability regulation during fear processing in humans are missing. To address this challenge we adapted an approach for excitability characterization, combining electroencephalography (EEG) and transcranial magnetic stimulation (TMS) over the dmPFC during an instructed fear paradigm, to dynamica…

AdultMalemedicine.medical_treatmentPrefrontal Cortexlcsh:MedicineElectroencephalographyAmygdalaBrain mappingArticle050105 experimental psychologyYoung Adult03 medical and health sciences0302 clinical medicineDorsomedial Prefrontal Cortex ; Fear Paradigm ; TMS-evoked Potentials (TEPs) ; Fear Network ; Fear ProcessingHeart RateReaction TimemedicineHumans0501 psychology and cognitive scienceslcsh:ScienceEvoked PotentialsBrain MappingElectroshockMultidisciplinarymedicine.diagnostic_test05 social scienceslcsh:RHealthy subjectsStructural integrityElectroencephalographyFearDorsomedial prefrontal cortexTranscranial Magnetic StimulationTranscranial magnetic stimulationmedicine.anatomical_structureFemalelcsh:QPsychologyNeuroscience030217 neurology & neurosurgery
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