Can the Lateralized Readiness Potential Detect Suppressed Manual Responses to Pure Tones?

2019 ◽  
Author(s):  
David J. Morris ◽  
K. Jonas Br¨annstr¨om ◽  
Catherine Sabourin
Keyword(s):  
Lateralized Readiness Potential ◽  
Readiness Potential ◽  
Manual Responses ◽  
Pure Tones

scholarly journals Can the Lateralized Readiness Potential Detect Suppressed Manual Responses to Pure Tones?

2020 ◽  
Vol 31 (01) ◽  
pp. 061-068
Author(s):  
David Jackson Morris ◽  
K. Jonas Brännström ◽  
Catherine Sabourin
Keyword(s):  
Repeated Measures ◽  
Objective Measure ◽  
Lateralized Readiness Potential ◽  
Readiness Potential ◽  
Perceived Effort ◽  
Manual Responses ◽  
Artifact Rejection ◽  
Separate Condition ◽  
Pure Tones ◽  
Tonal Stimuli

AbstractWillfully not responding to auditory stimuli hampers accurate behavioral measurements. An objective measure of covert manual suppression recorded during response tasks may be useful to assess the veracity of responses to stimuli.To investigate whether the lateralized readiness potential (LRP), an electrophysiological measure of corticomotor response and suppression, may be of use in determining when participants hear but do not respond to pure tones.Within-subject repeated measures with a Go–NoGo paradigm.Five males and five females (mean age = 38.8 years, standard deviation = 8.8) underwent electrophysiology testing. All had normal hearing, except one.Participants were tested in a condition where they consistently responded to tonal stimuli, and in a condition where intensity cued whether they should respond or not. Scalp-recorded cortical potentials and behavioral responses were recorded, along with a question that probed the perceived effort required to suppress responses to the stimuli.Electrophysiology data were processed with independent component analysis and epoch-based artifact rejection. Averaged group and individual LRPs were calculated.Group averaged waveforms show that suppressed responses, cued by NoGo stimuli, diverge positively at approximately 300 msec poststimulus, when compared with performed (Go) responses. LRPs were comparable when Go responses were recorded in a separate condition in which participants responded to all stimuli, and when Go and NoGo trials were included in the same condition. The LRP was not observed in one participant.Subsequent to further investigation, the LRP may prove suitable in assessing the suppression of responses to audiometric stimuli, and, thereby, useful in cases where functional hearing loss is suspected.

scholarly journals Response activation impairments in schizophrenia: Evidence from the lateralized readiness potential

2011 ◽  
Vol 49 (1) ◽  
pp. 73-84 ◽  
Author(s):  
Emily S. Kappenman ◽  
Samuel T. Kaiser ◽  
Benjamin M. Robinson ◽  
Sarah E. Morris ◽  
Britta Hahn ◽  
...  
Keyword(s):  
Lateralized Readiness Potential ◽  
Readiness Potential ◽  
Response Activation

Real-time Tracking of Motor Response Activation and Response Competition in a Stroop Task in Young Children: A Lateralized Readiness Potential Study

2009 ◽  
Vol 21 (11) ◽  
pp. 2195-2206 ◽  
Author(s):  
Dénes Szűcs ◽  
Fruzsina Soltész ◽  
Donna Bryce ◽  
David Whitebread
Keyword(s):  
Real Time ◽  
Stroop Task ◽  
Motor Response ◽  
Response Competition ◽  
Real Life ◽  
Lateralized Readiness Potential ◽  
Readiness Potential ◽  
Motor Inhibition ◽  
Motor Activation ◽  
Response Activation

The ability to select an appropriate motor response by resolving competition among alternative responses plays a major role in cognitive performance. fMRI studies suggest that the development of this skill is related to the maturation of the frontal cortex that underlies the improvement of motor inhibition abilities. However, fMRI cannot characterize the temporal properties of motor response competition and motor activation in general. We studied the development of the time course of resolving motor response competition. To this end, we used the lateralized readiness potential (LRP), an ERP measure, for tracking correct and incorrect motor cortex activation in children in real time. Fourteen children and 14 adults took part in an animal-size Stroop task where they selected between two animals, presented simultaneously on the computer screen, which was larger in real life. In the incongruent condition, the LRP detected stronger and longer lasting incorrect response activation in children than in adults. LRP results could explain behavioral congruency effects, the generally longer RT in children than in adults and the larger congruency effect in children than in adults. In contrast, the peak latency of ERP waves, usually associated with stimulus processing speed, could explain neither of the above effects. We conclude that the development of resolving motor response competition, relying on motor inhibition skills, is a crucial factor in child development. Our study demonstrates that the LRP is an excellent tool for studying motor activation in children.

scholarly journals Rate of force development and the lateralized readiness potential

2000 ◽  
Vol 37 (6) ◽  
pp. 757-765 ◽  
Author(s):  
William J. Ray ◽  
Semyon Slobounov ◽  
J. Toby Mordkoff ◽  
J. Johnston ◽  
Robert F. Simon
Keyword(s):  
Lateralized Readiness Potential ◽  
Rate Of Force Development ◽  
Readiness Potential ◽  
Force Development
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