The P300 component of the even-related brain potential and mental effort

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      <subfield code="a">The P300 component of the ERP (event-related brain potential) has been gaining importance as an index of information processing and cognitive activity and as a measure of workload. This study was conducted to test whether or not P300 reflects changes of effort accompanying a graduation of the task demand. The even-related brain potential were elicited directly by task stimuli of a reference-task paradigm</subfield>
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      <subfield code="g">Vol. 31, nº 8, August 1988 ; p. 1127-1137</subfield>
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