19. Hippocampal negative event-related potential recorded in humans is not time-locked to the motor response execution

This study aims to compare the topographic distribution of cortical activation between real and imagined movement through event-related potential (ERP). We are specifically interested in identifying, the topographic distribution of activated areas, the intensity of activated areas, and the temporal occurrence of these activations on preparation and motor response phases. Twelve healthy and right handed subjects were instructed to perform a task under real and imagery conditions. The task was performed simultaneously to electroencephalographic (EEG) recording. When compared the conditions, we found a statistically significant difference in favor of real condition revealed by performing an unpaired t-test with multiple corrections of Bonferroni, demonstrating negative activity on electrode C3 and positive activity on the electrode C4 only in motor response phase. These findings revealed similar functional connections established during real and imagery conditions, suggesting that there are common neural substrate and similar properties of functional integration shared by conditions.

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ERP evidence of MI activation without motor response execution

Neuroreport ◽

10.1097/00001756-200409150-00014 ◽

2004 ◽

Vol 15 (13) ◽

pp. 2067-2070 ◽

Cited By ~ 19

Author(s):

Santiago Galdo-Álvarez ◽

María T. Carrillo-de-la-Peña

Keyword(s):

Motor Response ◽

Response Execution

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Lateralised EEG power and phase dynamics related to motor response execution

Clinical Neurophysiology ◽

10.1016/j.clinph.2010.03.027 ◽

2010 ◽

Vol 121 (10) ◽

pp. 1711-1718 ◽

Cited By ~ 8

Author(s):

Kentaro Yamanaka ◽

Yoshiharu Yamamoto

Keyword(s):

Motor Response ◽

Phase Dynamics ◽

Eeg Power ◽

Response Execution

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Extraversion and Motor Response Initiation

Journal of Individual Differences ◽

10.1027/1614-0001/a000041 ◽

2011 ◽

Vol 32 (2) ◽

pp. 103-109 ◽

Cited By ~ 6

Author(s):

Michael Houlihan ◽

Robert M. Stelmack

Keyword(s):

Individual Differences ◽

Motor Response ◽

Information Value ◽

Stimulus Information ◽

Response Initiation ◽

Motor Processing ◽

Stimulus Evaluation ◽

Evaluation Time ◽

Sensory Motor ◽

Response Execution

This article explores the contribution of differences in motor response initiation and execution to the biological bases of extraversion. Specifically, we examined individual differences in the lateralized readiness potential (LRP) for introverts and extraverts under conditions influencing stimulus evaluation time prior to response execution, i.e., stimulus information value and tonal complexity. The salient effects were longer stimulus-locked LRP and shorter response-locked LRP for extraverts than introverts to simple imperative stimuli to respond. The present studies (1) confirm that extraverts initiate movement faster and are less efficient than introverts in the processing of simple stimulus signals to respond and (2) endorse the view differences in sensory-motor processing are important determinants of variation in Extraversion.

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