TY  - JOUR
PY  - 2023//
TI  - Event-related cerebral hemodynamic assessment of vigilance: evidence in favor of a more temporally precise analysis
JO  - Proceedings of the Human Factors and Ergonomic Society annual meeting
A1  - Azubike, Chidera O.
A1  - Greenlee, Eric T.
SP  - 1722
EP  - 1723
VL  - 67
IS  - 1
N2  - Transcranial Doppler sonography (TCD) is a neuroergonomic measure used in research on vigilance tasks. The current study focused on eventrelated analysis of TCD data, a relatively novel analytical approach that has previously been used to reveal that brain activity increases briefly when an individual detects a critical, target stimulus. Although research suggests that this detection-related response is sensitive to fatigue and demand effects associated with vigilance, future use and interpretation of event-related TCD analyses is complicated by interstudy variability in the time course and magnitude of the detection-related response. One possibility is that previous methods may have been too temporally coarse (4-second averages), so the current study reanalyzed data from one previous event-related study - this time using narrower 2-second averages. <br><br>RESULTS indicated that 2-second averages provided more precise depiction of the detection-related response than 4-second averages. We recommend use of 2-second averages for future eventrelated CBFV research.<p />  <p>Language: en</p>
LA  - en
SN  - 2169-5067
UR  - http://dx.doi.org/10.1177/21695067231192256
ID  - ref1
ER  -