Search results for " DLPFC"

showing 3 items of 3 documents

The what and how of observational learning

2007

Abstract Neuroimaging evidence increasingly supports the hypothesis that the same neural structures subserve the execution, imagination, and observation of actions. We used repetitive transcranial magnetic stimulation (rTMS) to investigate the specific roles of cerebellum and dorsolateral prefrontal cortex (DLPFC) in observational learning of a visuomotor task. Subjects observed an actor detecting a hidden sequence in a matrix and then performed the task detecting either the previously observed sequence or a new one. rTMS applied over the cerebellum before the observational training interfered with performance of the new sequence, whereas rTMS applied over the DLPFC interfered with performa…

AdultMaleCognitive Neurosciencemedicine.medical_treatmentrTMS cerebellum DLPFCPrefrontal CortexExperimental and Cognitive PsychologyCognitive neurosciencecerebellum; frontal cortex; observational learning; tmsbehavioral disciplines and activitiesTask (project management)NOBehavioral NeuroscienceMental ProcessesNeuroimagingtmsReference ValuesCerebellummental disordersmedicineBiological neural networkHumansObservational learningReference Values; Analysis of Variance; Humans; Cerebellum; Neural Inhibition; Prefrontal Cortex; Motor Skills; Imitative Behavior; Problem Solving; Social Perception; Imagination; Mental Processes; Adult; Transcranial Magnetic Stimulation; Female; MaleProblem SolvingAnalysis of VarianceSettore M-PSI/02 - Psicobiologia E Psicologia Fisiologicafrontal cortexNeural InhibitionCognitionImitative BehaviorTranscranial Magnetic StimulationDorsolateral prefrontal cortexTranscranial magnetic stimulationobservational learningmedicine.anatomical_structureSocial Perceptionnervous systemMotor SkillsImaginationSettore MED/26 - NeurologiaFemalePsychologyNeurosciencepsychological phenomena and processesCognitive psychology
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Transcranial direct current stimulation over the right DLPFC selectively modulates subprocesses in working memory

2018

Background Working memory, as a complex system, consists of two independent components: manipulation and maintenance process, which are defined as executive control and storage process. Previous studies mainly focused on the overall effect of transcranial direct current stimulation (tDCS) on working memory. However, little has been known about the segregative effects of tDCS on the sub-processes within working memory. Method Transcranial direct current stimulation, as one of the non-invasive brain stimulation techniques, is being widely used to modulate the cortical activation of local brain areas. This study modified a spatial n-back experiment with anodal and cathodal tDCS exertion on th…

Anodal tdcsMaintenancemedicine.medical_treatmentlcsh:MedicinePsychiatry and Psychologyta3112050105 experimental psychologyGeneral Biochemistry Genetics and Molecular BiologytDCSUpdatingmemory03 medical and health sciencesRight DLPFC0302 clinical medicinemedicine0501 psychology and cognitive sciencesn-backta515n-backTranscranial direct-current stimulationWorking memoryGeneral Neuroscience05 social scienceslcsh:RWorking memorymuistiGeneral MedicinetyömuistiBrain stimulationDiscriminability IndexRight dorsolateral prefrontal cortexGeneral Agricultural and Biological SciencesPsychologyNeuroscience030217 neurology & neurosurgeryPeerJ
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Cortical networks of procedural learning: Evidence from cerebellar damage

2007

The lateral cerebellum plays a critical role in procedural learning that goes beyond the strict motor control functions attributed to it. Patients with cerebellar damage show marked impairment in the acquisition of procedures, as revealed by their performance on the serial reaction time task (SRTT). Here we present the case of a patient affected by ischemic damage involving the left cerebellum who showed a selective deficit in procedural learning while performing the SRTT with the left hand. The deficit recovered when the cortical excitability of an extensive network involving both cerebellar hemispheres and the dorsolateral prefrontal cortex (DLPFC) was decreased by low-frequency repetitiv…

MaleSerial reaction timeCerebellumData InterpretationNerve netmedicine.medical_treatmentNeuropsychological TestsDLPFCProcedural memoryBrain IschemiaBehavioral NeuroscienceCerebellumrTMSAttentionPrefrontal cortexCerebellum; DLPFC; rTMS; StrokeCerebellar DiseaseStatisticalTranscranial Magnetic StimulationStrokeNeuropsychology and Physiological PsychologyMemory Short-Termmedicine.anatomical_structureData Interpretation StatisticalNeuropsychological TestSettore MED/26 - NeurologiaPsychologypsychological phenomena and processesHumanAdultCognitive NeuroscienceLearning; Humans; Prefrontal Cortex; Nerve Net; Memory; Memory Short-Term; Adult; Music; Brain Ischemia; Data Interpretation Statistical; Psychomotor Performance; Cerebellar Diseases; Neuropsychological Tests; Transcranial Magnetic Stimulation; Attention; Male; Reaction TimePrefrontal CortexExperimental and Cognitive Psychologybehavioral disciplines and activitiesNOCerebellar DiseasesMemorymental disordersReaction TimemedicineHumansLearningSettore M-PSI/02 - Psicobiologia E Psicologia FisiologicaMotor controlDorsolateral prefrontal cortexTranscranial magnetic stimulationShort-Termnervous systemCerebellum; DLPFC; rTMS; Stroke;Nerve NetNeuroscienceMusicPsychomotor PerformanceNeuropsychologia
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