0000000000174653

AUTHOR

Viviana Versace

0000-0003-4641-3532

showing 4 related works from this author

Resonance of cortico-cortical connections of the motor system with the observation of goal directed grasping movements

2010

Goal directed movements require the activation of parietal, premotor and primary motor areas. In monkeys, neurons of these areas become active also during the observation of movements performed by others, especially for coding the goal of the action (mirror system). Using bifocal transcranial magnetic stimulation (TMS) in healthy subjects, we tested whether the observation of goal directed reach to grasp actions may lead to specific changes in the short-latency connections linking key areas of the mirror system, such as the anterior intraparietal cortex (AIP) and the ventral premotor cortex (PMv), with the primary motor cortex (M1). We found that AIP-M1 and PMv-M1 cortico-cortical interacti…

MalePremotor cortexmedicine.medical_treatmentObservationParietal cortexGoalBehavioral NeuroscienceCortex (anatomy)Neural PathwaysEvoked PotentialsMirror neuronCerebral CortexConnectivityBrain MappingHand StrengthMIRROR NEURONSBody movementSkeletalTranscranial Magnetic Stimulationmedicine.anatomical_structureMotorMuscleFemaleSettore MED/26 - NeurologiaPrimary motor cortexPsychologyGoalsHumanAdultConnectivity; Observation; Parietal cortex; Premotor cortex; Transcranial magnetic stimulation;Cognitive NeuroscienceMovementGoals; Movement; Muscle Skeletal; Male; Young Adult; Electromyography; Female; Evoked Potentials Motor; Cerebral Cortex; Humans; Photic Stimulation; Psychomotor Performance; Observation; Hand Strength; Neural Pathways; Transcranial Magnetic Stimulation; Brain Mapping; AdultPosterior parietal cortexExperimental and Cognitive PsychologyConnectivity; Observation; Parietal cortex; Premotor cortex; Transcranial magnetic stimulationNOPremotor cortexNeural PathwayYoung AdultMotor systemmedicineHumansMuscle SkeletalSettore M-PSI/02 - Psicobiologia E Psicologia FisiologicaElectromyographyEvoked Potentials MotorTranscranial magnetic stimulationGoals; Young Adult; Humans; Electromyography; Observation; Movement; Muscle Skeletal; Cerebral Cortex; Photic Stimulation; Brain Mapping; Evoked Potentials Motor; Adult; Neural Pathways; Hand Strength; Psychomotor Performance; Transcranial Magnetic Stimulation; Female; MaleTMSNeurosciencePhotic StimulationPsychomotor Performance
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In vivo definition of parieto-motor connections involved in planning of grasping movements

2010

We combined bifocal transcranial magnetic stimulation (TMS) and diffusion tensor imaging (DTI) tractography to investigate in humans the contribution of connections originating from different parietal areas in planning of different reaching to grasp movements. TMS experiments revealed that in the left hemisphere functional connectivity between the primary motor cortex (M1) and a portion of the angular gyrus (AG) close to the caudal intraparietal sulcus was activated during early preparation of reaching and grasping movements only when the movement was made with a whole hand grasp (WHG) towards objects in contralateral space. In contrast, a different pathway, linking M1 with a part of the su…

Malegenetic structuresCognitive Neurosciencemedicine.medical_treatmentIntraparietal sulcusMotor Activitybehavioral disciplines and activitiesFunctional LateralityLateralization of brain functionNOSuperior longitudinal fasciculusAngular gyrusYoung AdultSupramarginal gyrusParietal LobeNeural PathwaysmedicineHumansYoung Adult; Diffusion Tensor Imaging; Humans; Hand; Motor Skills; Parietal Lobe; Frontal Lobe; Motor Cortex; Evoked Potentials Motor; Motor Activity; Neural Pathways; Psychomotor Performance; Transcranial Magnetic Stimulation; Female; Functional Laterality; MaleEvoked PotentialsConnectivitySettore M-PSI/02 - Psicobiologia E Psicologia Fisiologicamusculoskeletal neural and ocular physiologySuperior longitudinal fasciculusMotor CortexEvoked Potentials MotorHandTranscranial Magnetic StimulationFrontal LobeTranscranial magnetic stimulationTMS Connectivity Movement planning Superior longitudinal fasciculusTractography Transcranial magnetic stimulationDiffusion Tensor Imagingmedicine.anatomical_structureConnectivity; Movement planning; Superior longitudinal fasciculus; TMS; Tractography; Transcranial magnetic stimulation;Motornervous systemNeurologyMotor SkillsMovement planningTMSFemaleSettore MED/26 - NeurologiaPrimary motor cortexPsychologyTractographyNeurosciencePsychomotor Performancepsychological phenomena and processesTractographyNeuroImage
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Fast increase of motor cortical inhibition following postural changes in healthy subjects.

2012

BACKGROUND AND AIMS: Postural reactions are associated with changes in the excitability of the motor system. In the present study we investigated the presence of neurophysiological changes of motor cortical areas targeting muscles of the inferior limbs following treatment with a physiotherapy technique aimed to treat postural dysfunctions by stretching postural muscles, global postural reeducation (GPR). METHODS: Twenty healthy subjects were evaluated with paired-transcranial magnetic stimulation (TMS) of the motor cortex and recording of motor evoked potentials (MEPs) from peripheral muscles of the inferior limb before and after two GPR manoeuvres applied in different experiments (1 and 2)…

AdultMalemedicine.medical_specialtyPostureStimulationElectromyographyBicepsYoung AdultPhysical medicine and rehabilitationReference ValuesMuscle Stretching ExercisesMotor systemmedicineHumansMuscle SkeletalEvoked PotentialsYoung Adult; Muscle Stretching Exercises; Reference Values; Physical Therapy Modalities; Humans; Electromyography; Neural Inhibition; Muscle Skeletal; Leg; Motor Cortex; Evoked Potentials Motor; Adult; Posture; Transcranial Magnetic Stimulation; Female; MalePhysical Therapy ModalitiesLegmedicine.diagnostic_testSettore M-PSI/02 - Psicobiologia E Psicologia FisiologicaElectromyographyGeneral NeuroscienceHealthy subjectsMotor CortexNeural InhibitionSkeletalNeurophysiologyEvoked Potentials MotorTranscranial Magnetic StimulationTMS posturePeripheralmedicine.anatomical_structureMotorMuscleSettore MED/26 - NeurologiaFemalePsychologyMotor cortexNeuroscience letters
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TMS activation of interhemispheric pathways between the posterior parietal cortex and the contralateral motor cortex

2009

Using a twin coil transcranial magnetic stimulation (tc-TMS) approach we have previously demonstrated that facilitation may be detected in the primary motor cortex (M1) following stimulation over the ipsilateral caudal intraparietal sulcus (cIPS). Here we tested the interhemispheric interactions between the IPS and the contralateral motor cortex (M1). We found that conditioning the right cIPS facilitated contralateral M1 when the conditioning stimulus had an intensity of 90% resting motor threshold (RMT) but not at 70% or 110% RMT. Facilitation was maximal when the interstimulus interval (ISI) between cIPS and M1 was 6 or 12 ms. These facilitatory effects were mediated by interactions with …

PhysiologyInterstimulus intervalmedicine.medical_treatmentParietal lobePosterior parietal cortexStimulationIntraparietal sulcusTranscranial magnetic stimulationmedicine.anatomical_structuremedicinePrimary motor cortexPsychologyNeuroscienceMotor cortexThe Journal of Physiology
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