Changes in corticospinal excitability during consolidation predict acute exercise-induced off-line gains in procedural memory
| Autor: | Jean-Felix Daloze, Fatemeh Ostadan, Jesper Lundbye-Jensen, Marc Roig, Carla Centeno, Mira Frenn |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male Serial reaction time Cognitive Neuroscience medicine.medical_treatment Pyramidal Tracts Experimental and Cognitive Psychology 050105 experimental psychology Procedural memory Young Adult 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Neuroplasticity medicine Humans Aerobic exercise 0501 psychology and cognitive sciences Exercise Memory Consolidation Neuronal Plasticity 05 social sciences Motor Cortex Long-term potentiation Transcranial Magnetic Stimulation Transcranial magnetic stimulation Motor Skills Female Memory consolidation Primary motor cortex Psychology Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Neurobiology of Learning and Memory. 136:196-203 |
| ISSN: | 1074-7427 |
| DOI: | 10.1016/j.nlm.2016.10.009 |
| Popis: | A single bout of cardiovascular exercise performed immediately after practicing a motor task improves the long-term retention of the skill through an optimization of memory consolidation. However, the specific brain mechanisms underlying the effects of acute cardiovascular exercise on procedural memory are poorly understood. We sought to determine if a single bout of exercise modifies corticospinal excitability (CSE) during the early stages of memory consolidation. In addition, we investigated if changes in CSE are associated with exercise-induced off-line gains in procedural memory. Participants practiced a serial reaction time task followed by either a short bout of acute exercise or a similar rest period. To monitor changes in CSE we used transcranial magnetic stimulation applied to the primary motor cortex (M1) at baseline, 15, 35, 65 and 125min after exercise or rest. Participants in the exercise condition showed larger (∼24%) improvements in procedural memory through consolidation although differences between groups did not reach statistical significance. Exercise promoted an increase in CSE, which remained elevated 2h after exercise. More importantly, global increases in CSE following exercise correlated with the magnitude of off-line gains in skill level assessed in a retention test performed 8h after motor practice. A single bout of exercise modulates short-term neuroplasticity mechanisms subserving consolidation processes that predict off-line gains in procedural memory. |
| Databáze: | OpenAIRE |
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