PEBL Technical Report #2012-04
The effects of time of day and practice on cognitive abilities: The PEBL
Tower of London, Trail-making, and Switcher tasks
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AuthorsKrista Anderson, Katrina Deane, Devon Lindley, Benjamin Loucks, Emma Veach
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AbstractThis purpose of this study was to investigate the effects of practice
and time of day on the performance on three executive function tests
in the PEBL Test battery: The Trail-making test, Feature Switching
test, and the Tower of London test. Each participant was tested for up
to twelve sessions, across four different times of the day. In addition,
subjective ratings of tiredness were collected. Results showed a
strong relationship between time of day and rated tiredness, with
students giving the highest tiredness ratings in the morning and
evening and the lowest in the afternoon. However, measures of
executive function were not impacted by time of day (although the
mean response time for the feature-switching task was, across all
switch levels). Furthermore, the tasks showed improvement with
practice, but these improvements tended to be isolated to the first few
rounds, and executive function measures remained stable after
substantial practice. Our results help to show the conditions under
which these tests would be suitable measures for assessing alertness.
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How to cite:Anderson, K., Deane, K., Lindley, D., Loucks, B., & Veach, E. (2012).
PEBL Technical Report
Series [On-line], #2011-01. The effects of time of day and practice on cognitive abilities: The PEBL Tower of London, Trail-making, and Switcher tasks Retrieved from
http://sites.google.com/site/pebltechnicalreports/home/2012/pebl-technical-report-2012-04. |
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 Updating... Ċ Shane Mueller, May 31, 2012, 8:38 AM
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