This is probably the most intensive study of mental fatigue that has ever been made. After a splendid historical survey of the subject, the author recounts the results of experiments to determine the change in mental efficiency produced by various types of mental work. Among these was a careful study of the effects produced by the mental multiplication of four place by four place numbers continued for 12 hours without interruption. There was a gradual increase in the average time required for each multiplication, until at ...

Mental Fatigue 2016, Palala Press

ISBN-13: 9781355842163

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Mental Fatigue 2016, Palala Press

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Mental Fatigue 2016, Wentworth Press

ISBN-13: 9781372295072

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Mental Fatigue 2016, Wentworth Press

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Mental Fatigue 2015, Palala Press

ISBN-13: 9781341025556

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Mental Fatigue 2015, Palala Press

ISBN-13: 9781343237599

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Mental Fatigue 2015, Palala Press

ISBN-13: 9781343258839

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Mental Fatigue 2015, Palala Press

ISBN-13: 9781347438459

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Mental Fatigue 2015, Palala Press

ISBN-13: 9781342605771

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Mental Fatigue 2015, Createspace

ISBN-13: 9781512032659

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Mental Fatigue 2012, Rarebooksclub.com, Miami FL

ISBN-13: 9781236105899

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Mental Fatigue... 2012, Nabu Press, Charleston SC

ISBN-13: 9781272596965

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Mental Fatigue... 2012, Nabu Press, Charleston SC

ISBN-13: 9781273597497

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Mental Fatigue... 2012, Nabu Press, Charleston SC

ISBN-13: 9781274008534

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Mental Fatigue 2012, Hardpress Publishing

ISBN-13: 9781290524155

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Mental Fatigue 2011, BiblioLife, Charleston SC

ISBN-13: 9781241631864

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Mental Fatigue 2010, Nabu Press, Charleston SC

ISBN-13: 9781176830608

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Mental Fatigue 2010, Nabu Press, Charleston SC

ISBN-13: 9781141663194

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Mental Fatigue 2009, BiblioLife, Charleston SC

ISBN-13: 9781117236070

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Mental Fatigue 1972, AMS Press

ISBN-13: 9780404550547

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