Home // ACHI 2015, The Eighth International Conference on Advances in Computer-Human Interactions // View article
Authors:
Michael Krause
Verena Knott
Klaus Bengler
Keywords: DRT, TDT, TDRT, IVIS, detection response task; smartphone; cognitive workload
Abstract:
The tactile detection task (TDT), a vibrating detection response task (DRT), was used to assess the mental demand of an in-vehicle information system (IVIS), which recommends a driving speed to the driver on a smartphone. In the experiment, the TDT was recorded as a single task, with the driving task as a baseline as well as with additional IVIS task, and with a cognitive task as reference and control. Results show that IVIS use did not significantly prolong the TDT reaction times, which can be interpreted as no increase in mental workload caused by the IVIS. The control task increased the reaction times significantly. The data of the real road experiment are analyzed in terms of correlations showing that the TDT was a reliable cognitive workload measurement tool in the experiment. Sideline: Driven speed revealed no correlation with TDT reaction times when the vehicle was in motion.
Pages: 43 to 48
Copyright: Copyright (c) IARIA, 2015
Publication date: February 22, 2015
Published in: conference
ISSN: 2308-4138
ISBN: 978-1-61208-382-7
Location: Lisbon, Portugal
Dates: from February 22, 2015 to February 27, 2015