Sleep and Fatigue
In the previous chapter, we discussed some of the biological mechanisms that are related to motivation. Most definitions of motivation include an energetic factor. Sleep and/or fatigue imply low levels of overt activity. The desire for sleep may be considered to be a powerful motive, and a reduction of this activity leads to efforts to satisfy this need. Numerous disciplines from biochemistry to psychology have contributed to our understanding of this phenomenon. In 1995, The National Institute of Mental Health convened a task force on basic behavioral research needs. One section of the group’s report covered emotion and motivation, and the latter included a statement that “the need for sleep is powerfully motivating.”
KeywordsSleep Problem Mental Fatigue Performance Decrement Nocturnal Sleep Physiological Cost
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