Phisiological changes during computer tasks : responses to mental load or to motor demands?

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      <subfield code="a">Cardiac and electrodermal measures are regarded as indicators of user strain during computer work, not taking the possible influence of finger and hand movements on these measures into account. For the evaluation of such effects, motor demands and mental load were both varied as independent factors in two experiments</subfield>
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      <subfield code="t">Ergonomics</subfield>
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      <subfield code="g">Vol. 39, nº 2, February 1996 ; p. 213-224</subfield>
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