To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
This chapter focuses on studies in which the interaction of sleep loss and caffeine on a variety of cognitive tests was examined. Caffeine effects on cognitive performance are dependent upon both the dose and the method used to deliver the caffeine. A variety of outcome measures have been used to assess the efficacy of caffeine during sleep loss. The commonly used measures are subjective and objective sleepiness. Short-term memory has been examined during sleep loss using several types of tasks including the Digit-Symbol Substitution Test (DSST), coding, short-term memory recall, and digit span. Numerous additional cognitive tests have been examined during sleep deprivation. The effects of caffeine during sleep loss have been examined over a large dose range. Administration of caffeine typically produces both physiological effects and mood changes. If caffeine use is terminated once tolerance develops, withdrawal (which includes symptoms such as headache, fatigue, and sleepiness) may occur.
Email your librarian or administrator to recommend adding this to your organisation's collection.