scholarly journals Altered somatosensory evoked potentials associated with improved reaction time in a simple sensorimotor response task following repetitive practice

2020 ◽  
Vol 10 (8) ◽  
Author(s):  
Mayu Akaiwa ◽  
Koki Iwata ◽  
Hidekazu Saito ◽  
Takeshi Sasaki ◽  
Kazuhiro Sugawara
Keyword(s):  
Reaction Time ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Response Task

Differential modulation of the short- and long-latency somatosensory evoked potentials in a forewarned reaction time task

2004 ◽  
Vol 115 (10) ◽  
pp. 2223-2230 ◽  
Author(s):  
Tetsuo Kida ◽  
Yoshiaki Nishihira ◽  
Toshiaki Wasaka ◽  
Yukie Sakajiri ◽  
Toshiki Tazoe
Keyword(s):  
Reaction Time ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Reaction Time Task ◽  
Differential Modulation ◽  
Time Task ◽  
Long Latency

Altered somatosensory evoked potentials associated with improved reaction time in a simple sensorimotor response task following repetitive practice

2019 ◽  
Author(s):  
Mayu Akaiwa ◽  
Koki Iwata ◽  
Hidekazu Saito ◽  
Takeshi Sasaki ◽  
Kazuhiro Sugawara
Keyword(s):  
Decision Making ◽  
Evoked Potentials ◽  
Cognitive Processing ◽  
Sensory Processing ◽  
Somatosensory Evoked Potentials ◽  
Reaction Times ◽  
P300 Amplitude ◽  
Somatosensory Processing ◽  
Attentional Allocation ◽  
Response Task

Abstract Background Repetitive practice of sensorimotor tasks is widely used for neurorehabilitation; however, it is unknown how practice alters sensory processing (e.g., recognition, discrimination, and attentional allocation) and associated cognitive processing, such as decision-making. The purpose of this study was to investigate whether somatosensory evoked potentials (SEPs) reflecting sensory processing, attention, and decision-making are altered by sensorimotor learning. 15 participants preformed a simple sensorimotor response task (thumb opposition in response to surface electrical stimulation), with experimental recording sessions before and after three days of practice. We then compared multiple SEP waveforms and reaction times (RTs) between pre- and postpractice trials. Results As expected, the RT was reduced after practice of three days, and this was associated with shorter N140 and N250 latencies and larger P300 amplitude. Conclusions The present study suggests that motor learning improves somatosensory processing and attentional allocation via neuroplasticity and that these alterations are reflected by specific SEP changes.

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