Transcranial direct current stimulation enhances retention of a second (but not first) order conditional visuo-motor sequence
| Autor: | Peter G. Enticott, James M. A. Plumridge, Gillian M. Clark, Martina Hedenius, Nicole P. Sloan, Jarrad A. G. Lum, Andrea Mills |
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| Rok vydání: | 2018 |
| Předmět: |
Serial reaction time
Adult Male medicine.medical_specialty Motor sequence Cognitive Neuroscience medicine.medical_treatment Prefrontal Cortex Experimental and Cognitive Psychology Stimulation Audiology Transcranial Direct Current Stimulation Left inferior frontal gyrus 050105 experimental psychology 03 medical and health sciences Young Adult 0302 clinical medicine Arts and Humanities (miscellaneous) Developmental and Educational Psychology medicine Reaction Time Humans Learning 0501 psychology and cognitive sciences Sequence (medicine) Transcranial direct-current stimulation 05 social sciences Retention Psychology First order Implicit learning Neuropsychology and Physiological Psychology Female Psychology 030217 neurology & neurosurgery |
| Zdroj: | Brain and cognition. 127 |
| ISSN: | 1090-2147 |
| Popis: | This study examined the role of the left inferior frontal gyrus in the implicit learning and retention of a ‘simple’ first order conditional (FOC) sequence and a relatively ‘complex’ second order conditional (SOC) sequence, using anodal transcranial direct current stimulation (a-tDCS). Groups of healthy adults received either a-tDCS (n = 18) over the left inferior frontal gyrus or sham/placebo (n = 18) stimulation. On separate days, participants completed a serial reaction time (SRT) task whilst receiving stimulation. On one of the days, participants were presented with a FOC sequence and in another, a SOC sequence. Both the learning and short-term retention of the sequences were measured. Results showed a-tDCS enhanced the short-term retention of the SOC sequence but not the FOC sequence. There was no effect of a-tDCS on the learning of either FOC or SOC sequences. The results provide evidence of prefrontal involvement in the retention of a motor sequence. However, its role appears to be influenced by the complexity of the sequence’s structure. Additionally, the results show a-tDCS can enhance retention of an implicitly learnt motor sequence. |
| Databáze: | OpenAIRE |
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