Anodal Transcranial Direct Current Stimulation Enhances Procedural Consolidation
| Autor: | Giulia Barbati, Paolo Maria Rossini, Filippo Zappasodi, Giovanni Assenza, Mario Tombini, Stefano Vollaro, Franca Tecchio |
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| Přispěvatelé: | F., Tecchio, F., Zappasodi, G., Assenza, M., Tombini, S., Vollaro, Barbati, Giulia, P. M., Rossini |
| Rok vydání: | 2010 |
| Předmět: |
Adult
Male physiology Female Functional Laterality medicine.medical_specialty Physiology physiology Motor Skill medicine.medical_treatment education Stimulation Neuropsychological Tests Functional Laterality 050105 experimental psychology Procedural memory 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation medicine Humans 0501 psychology and cognitive sciences physiology Neuropsychological Tests Transcranial Magnetic Stimulation Evoked Potentials Motor skill physiology Humans Linear Models Male Motor Cortex Adult Analysis of Variance Evoked Potential Analysis of Variance Transcranial direct-current stimulation Consolidation (soil) General Neuroscience 05 social sciences Motor Cortex Evoked Potentials Motor Transcranial Magnetic Stimulation Neuromodulation (medicine) Motor Motor Skills Finger tapping Linear Models Female Primary motor cortex Adult Analysis of Variance Evoked Potentials physiology Motor Skills Psychology Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Journal of Neurophysiology. 104:1134-1140 |
| ISSN: | 1522-1598 0022-3077 |
| DOI: | 10.1152/jn.00661.2009 |
| Popis: | The primary motor cortex (M1) area recruitment enlarges while learning a finger tapping sequence. Also M1 excitability increases during procedural consolidation. Our aim was to investigate whether increasing M1 excitability by anodal transcranial DC stimulation (AtDCS) when procedural consolidation occurs was able to induce an early consolidation improvement. Forty-seven right-handed healthy participants were trained in a nine-element serial finger tapping task (SFTT) executed with the left hand. Random series blocks were interspersed with training series blocks. Anodal or sham tDCS was administered over the right M1 after the end of the training session. After stimulation, the motor skills of both trained and a new untrained sequential series blocks were tested again. For each block, performance was estimated as the median execution time of correct series. Early consolidation of the trained series, assessed by the performance difference between the first block after and the last block before stimulation normalized by the random, was enhanced by anodal and not by sham tDCS. Stimulation did not affect random series execution. No stimulation effect was found on the on-line learning of the trained and new untrained series. Our results suggest that AtDCS applied on M1 soon after training improves early consolidation of procedural learning. Our data highlight the importance of neuromodulation procedures for understanding learning processes and support their use in the motor rehabilitation setting, focusing on the timing of the application. |
| Databáze: | OpenAIRE |
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