Show simple item record

dc.creatorParent, John Scotten_US
dc.descriptionDue to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to, referencing the URI of the item.en_US
dc.descriptionIncludes bibliographical references.en_US
dc.description.abstractThis thesis reports on the impact of combined heat and noise on the performance of a short-term memory retention task with two levels of difficulty. Thirty-two males, ages 18 - 35, were exposed to four different treatment conditions during four one hour sessions. These four treatment conditions consisted of: a control environment, a noise environment a heat environment, and a combined heat and noise environment. Temperatures during the control and noise conditions were maintained between 68 and 70 degrees Fahrenheit while temperatures during the heat and combined conditions were maintained at 105 degrees Fahrenheit. Sound exposure levels during the noise and combined conditions averaged at 83.7 decibels with peak frequency exposures never exceeding 93.5 decibels for ten seconds. The task to be performed was a computerized version of game "Concentration". Subjects were presented with both a 6 x 8 and an 8 x 8 grid of blank tiles and asked to correctly match as many tile pairs as they could in three minutes. The task was repeated twice for each grid. Results from the 6 x 8 grid showed performance decrements for all three stress conditions with combined heat and noise showing the greatest performance decrement. However, none of these decrements were found to be significantly different from the control environment or from each other at an Alpha level of .05. Further, no significant evidence was found to show that the combined effects of heat and noise exceed the effects of either stressor singularly. Results from the 8 x 8 grid proved to be different. While performance decrements were observed for the heat and noise conditions alone, the greatest overall performance scores were observed during the combined stress condition. Again, none of these scores were found to be significantly different from the control environment or from each other at an Alpha level of .05. It appears, from these results, that heat and noise stress, experienced either singularly or in combination does not have a significant effect on short-term memory or overall performance degradation.en_US
dc.publisherTexas A&M Universityen_US
dc.rightsThis thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use.en_US
dc.subjectindustrial engineering.en_US
dc.subjectMajor industrial engineering.en_US
dc.titleThe impact of combined heat and noise on short-term retentionen_US
dc.typeThesisen_US engineeringen_US
dc.format.digitalOriginreformatted digitalen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

This item and its contents are restricted. If this is your thesis or dissertation, you can make it open-access. This will allow all visitors to view the contents of the thesis.

Request Open Access