Motivation and motor cortical activity can independently affect motor performance
| Autor: | Caroline C. Meadows, Philip A. Gable, Matthew W. Miller, Keith R. Lohse |
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| Rok vydání: | 2016 |
| Předmět: |
Male
medicine.medical_specialty Electromyography Muscle Strength Dynamometer Audiology Electroencephalography Motor Activity Affect (psychology) Developmental psychology 03 medical and health sciences Young Adult 0302 clinical medicine medicine Reaction Time Humans Muscle Skeletal Motivation medicine.diagnostic_test Dynamometer General Neuroscience Motor Cortex 030229 sport sciences Anticipation Psychological Hand medicine.anatomical_structure Linear Models Female Psychology Beta Rhythm 030217 neurology & neurosurgery Motor cortex |
| Zdroj: | Neuroscience. 339 |
| ISSN: | 1873-7544 |
| Popis: | The present study explored the relationship between motor-preparatory electroencephalographic (EEG) activity, motivation, and motor performance (specifically premotor reaction time [RT]). Participants performed a RT task by squeezing a hand dynamometer in response to an auditory “go” signal. We recorded EEG and electromyography to index beta-suppression and premotor RT, respectively. Participants’ motivation on each trial was modulated by offering monetary incentives at different magnitudes. Mixed-effect linear regression models showed that monetary incentive predicted premotor RT when controlling for beta-suppression, and beta-suppression independently predicted premotor RT. Thus, it appears motivation and beta-suppression can facilitate motor performance independent of one another. A plausible explanation of this effect is that motivation can affect motor performance independent of the motor cortex by influencing subcortical motor circuitry. |
| Databáze: | OpenAIRE |
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