Search results for "Voxel based morphometry"

showing 3 items of 3 documents

A combined electrophysiological and morphological examination of episodic memory decline in amnestic mild cognitive impairment.

2013

Early stages of Alzheimer’s disease (AD) are characterized by neuropathological changes within the medial temporal lobe cortex (MTLC), which lead to characteristic impairments in episodic memory, i.e., amnestic mild cognitive impairment (aMCI). Here, we tested the neural correlates of this memory impairment using event-related potentials (ERPs) and voxel-based morphometry. Twenty-four participants were instructed to encode lists of words and were tested in a yes/no recognition memory task. The dual-process model of recognition memory dissociates between acontextual familiarity and recollection of contextual details. The early frontal ERP old/new-effect, which is thought to represent a neura…

AgingCognitive Neuroscienceevent-related potentialsrecognition memorybehavioral disciplines and activitieslcsh:RC321-571Event-related potentialMemory impairmentvoxel-based morphometryOriginal Research ArticleMedial Temporal Lobeslcsh:Neurosciences. Biological psychiatry. NeuropsychiatryEpisodic memoryRecognition memoryfamiliarityRecallBrain morphometryevent-related potential (ERP)Voxel-based morphometrymedial temporal lobeVoxel Based MorphometryTemporal lobe/cortexPsychologyNeuroscienceCognitive psychologyNeuroscienceFrontiers in aging neuroscience
researchProduct

The relationship between genetic risk variants with brain structure and function in bipolar disorder: A systematic review of genetic-neuroimaging stu…

2017

Genetic-neuroimaging paradigms could provide insights regarding the pathophysiology of bipolar disorder (BD). Nevertheless, findings have been inconsistent across studies. A systematic review of gene-imaging studies involving individuals with BD was conducted across electronic major databases from inception until January 9th, 2017. Forty-four studies met eligibility criteria (N = 2122 BD participants). Twenty-six gene variants were investigated across candidate gene studies and 4 studies used a genome-wide association approach. Replicated evidence (i.e. in >2 studies) suggests that individuals with BD carrying the BDNF Val66Met risk allele could have reduced hippocampal volumes compared …

Transtorno BipolarCandidate genediffusion tensor imagingvoxel based morphometryBipolar disorderBipolar disorder Genetic polymorphisms Neuroimaging Magnetic resonance imaging Functional MRI Diffusion tensor imagingvoxel based morphometryCognitive NeuroscienceBrain Structure and FunctionGenome-wide association studyNeuroimagingComputational biologyGenetic polymorphismsFaculty of Social Sciences03 medical and health sciencesDISC1Behavioral Neuroscience0302 clinical medicineMagnetic resonance imagingNeuroimaginggenetic polymorphisms/dk/atira/pure/core/keywords/FacultyOfSocialSciencesImatges per ressonància magnèticamedicineHumansManic-depressive illnessANK3Bipolar disorderCervellNeuroimagemDiffusion tensor imagingvoxel based morphometryFunctional MRIGenetic polymorphismneuroimagingTrastorn bipolarbiologyBipolar disorder; Diffusion tensor imagingvoxel based morphometry; Functional MRI; Genetic polymorphisms; Magnetic resonance imaging; Neuroimaging; Neuropsychology and Physiological Psychology; Cognitive Neuroscience; Behavioral NeuroscienceReproducibility of ResultsBrainmedicine.disease030227 psychiatryNeuropsychology and Physiological Psychology5-HTTLPRbiology.proteinfunctional MRIImagem por Ressonância MagnéticaPsychologyNeuroscience030217 neurology & neurosurgeryHumanGenome-Wide Association Study
researchProduct

Técnicas de análisis de posproceso en resonancia magnetica parael estudio de la conectividad cerebral

2011

Brain connectivity is a key concept for understanding brain function. Current methods to detect and quantify different types of connectivity with neuroimaging techniques are fundamental for understanding the pathophysiology of many neurologic and psychiatric disorders. This article aims to present a critical review of the magnetic resonance imaging techniques used to measure brain connectivity within the context of the Human Connectome Project. We review techniques used to measure: a) structural connectivity b) functional connectivity (main component analysis, independent component analysis, seed voxel, meta-analysis), and c) effective connectivity (psychophysiological interactions, causal …

Voxel based morphometryRMfResonancia MagnéticaConectomaMétodosIndependent component analysisBrain functionArticleStructural equation modelingConectividad cerebralFunctional connectivityMagnetic resonance imagingConnectomeMethodsImage Processing Computer-AssistedHumansRadiology Nuclear Medicine and imagingBrain connectivityICAEffective connectivityBrain functionPhysicsConectividad FuncionalFunctional connectivityStructural connectivityBrainConectividad EfectivaNuclear magnetic resonance imagingMeta-analysisFMRIFISICA APLICADAMeta-AnalisisMeta analisisHumanitiesPsychophysiology
researchProduct