Predicted sensory consequences of voluntary actions modulate amplitude of preceding readiness potentials

Neuropsychologia
Daniel ReznikRoy Mukamel

Abstract

Self-generated, voluntary actions, are preceded by a slow negativity in the scalp electroencephalography (EEG) signal recorded from frontal regions (termed 'readiness potential'; RP). This signal, and its lateralized subcomponent (LRP), is mainly regarded as preparatory motor activity associated with the forthcoming voluntary motor act. However, it is not clear whether this neural signature is associated with preparatory motor activity, expectation of its associated sensory consequences, or both. Here we recorded EEG data from 14 healthy subjects while they performed self-paced button presses with their right index and middle fingers. Button-presses with one finger triggered a sound (motor+sound condition), while button-presses with the other finger did not (motor-only condition). Additionally, subjects listened to externally-generated sounds delivered in expected timings (sound-only condition). We found that the RP amplitude (locked to time of button press) was significantly more negative in the motor+sound compared with motor-only conditions. Importantly, no signal negativity was observed prior to expected sound delivery in the sound-only condition. Thus, the differences in RP amplitude between motor+sound and motor-only cond...Continue Reading

Citations

Nov 6, 2018·Neuroscience and Biobehavioral Reviews·Daniel Reznik, Roy Mukamel
Dec 8, 2020·Acta Psychologica·Nina-Alisa HinzAgnieszka Wykowska
Mar 26, 2021·Scientific Reports·Betina KorkaAndreas Widmann
May 2, 2021·Trends in Cognitive Sciences·Aaron SchurgerAdina L Roskies
Jul 27, 2021·Frontiers in Neuroscience·Kameron K ClaytonDaniel B Polley
Jan 14, 2022·Cerebral Cortex·Shahar Aberbach-GoodmanRoy Mukamel

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