Search results for "cortical area"

showing 3 items of 3 documents

The cerebral localization of executive functions

2018

Executive Functions (EFs) are a complex neuropsychological tool that can lead all action of daily-life indipendently from age. The attempt to associate specific regions of the central nervous system (CNS) with specific sensory functions, motor and cognitive skills is one of the most recurring themes in the history of neuroscience. The concept of cerebral localization of mental activities started from the formulations of beginning phrenologists in Nineteenth century, passing through the holistic conceptions and antilocalization that marked some periods of the Twentieth century, until the beginning of the new millennium, characterized by the enormous popularity of the techniques of functional…

Executive FunctionFrontal lobesNeuropsychologyMedicine (all)Executive FunctionsCortical areasFrontal lobeCortical areaCortical areas; Executive Functions; Frontal lobes; Neuropsychology;
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Interhemispheric inhibition is dynamically regulated during action observation

2016

International audience; It is now well established that the motor system plays a pivotal role in action observation and that the neurophysiological processes underlying perception and action overlaps. However, while various experiments have shown a specific facilitation of the contralateral motor cortex during action observation, no information is available concerning the dynamics of interhemispheric interactions. The aim of the present study was, therefore, to assess interhemispheric inhibition during the observation of others' actions. We designed a transcranial magnetic stimulation (TMS) experiment in which we measured both corticospinal excitability and interhemispheric inhibition, this…

0301 basic medicineMalemedicine.medical_treatmentcorpus-callosumPyramidal TractsCorticospinal excitabilitFunctional Laterality0302 clinical medicinehuman motor cortextranscallosal inhibitionInterhemispheric inhibitiontranscranial magnetic stimulationAction observation Corticospinal excitabilit; Interhemispheric inhibition Movement kinematics Transcranial magnetic stimulation Adult Evoked Potentials Motor Female Functional Laterality Hand Strength Humans Male Motor Cortex Movement Muscle Skeletal Pyramidal Tracts Rest Transcranial Magnetic Stimulation Young Adult Neuropsychology and Physiological Psychology Experimental and Cognitive Psychology Cognitive NeuroscienceEvoked Potentialsvoluntary movementHand StrengthMotor CortexAction observationSkeletalCorticospinal excitabilitymedicine.anatomical_structureNeuropsychology and Physiological PsychologyMotormultiple-sclerosiscortical areasMuscleFemalePsychologyMotor cortexAdultCognitive NeuroscienceMovementRestipsilateral silent periodExperimental and Cognitive PsychologyInhibitory postsynaptic potential03 medical and health sciencesYoung AdultMotor systemmedicineHumansMuscle SkeletalPyramidal tractsNeurophysiologyEvoked Potentials MotorTranscranial magnetic stimulation030104 developmental biologyAction (philosophy)[ SDV.NEU ] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]Silent periodMovement kinematicsNeuroscienceintracortical circuits030217 neurology & neurosurgery
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Longitudinal 18F-FDG PET and MRI Reveal Evolving Imaging Pathology That Corresponds to Disease Progression in a Patient With ALS-FTD

2019

Single time point positron emission tomography (PET) studies of patients with amyotrophic lateral sclerosis and frontotemporal dementia (ALS-FTD), have demonstrated hypometabolism or hypermetabolism in certain brain regions. To determine whether longitudinal (at baseline and 20.4 months later) PET and magnetic resonance imaging (MRI) reveal evolving brain imaging pathology corresponding to clinical progression in a patient with ALS-FTD, cerebral glucose metabolic rate, cortical thickness (CT) and cortical area (CA) were obtained and symmetric percent change (SPC) for each calculated. The patient had worsening symptoms and signs of bulbar-onset upper motor neuron-predominant ALS as well as l…

Pathologymedicine.medical_specialtyCase ReportLateralization of brain functionlcsh:RC346-429030218 nuclear medicine & medical imagingPrimary progressive aphasia03 medical and health sciences0302 clinical medicineNeuroimagingAphasiaALS-FTDMedicineAmyotrophic lateral sclerosislcsh:Neurology. Diseases of the nervous systemcortical areamedicine.diagnostic_testbusiness.industryMagnetic resonance imagingcortical thicknessmedicine.diseaseaphasiaPETNeurologyNeurology (clinical)medicine.symptombusinessNeurocognitive030217 neurology & neurosurgeryFrontotemporal dementiaMRIFrontiers in Neurology
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