Dual-task interference while receiving information on a head mounted display and manual tracking with and without auditory warnings

Ward, Matthew K.; Helton, William S.

doi:10.1016/j.apergo.2022.103713

Cited by 9 publications

(10 citation statements)

References 38 publications

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“…The same compensatory tracking task used in Ward and Helton (2022) was used in this study. In the task, a target comprised of five red concentric circles was presented on top of a light grey background on a computer display terminal.…”

Section: Methodsmentioning

confidence: 99%

“…The participant was then given an opportunity to adjust the Google Glass for comfort, and to get familiar with its use. All participants were then given a two-minute period to practice the tracking task (previous research had demonstrated the task is quickly learned; Ward & Helton, 2022).…”

Section: Methodsmentioning

confidence: 99%

“…In condition without the tracking task, the computer screen showed only the background neutral grey color with no cursor or target. Each condition ran for 4.5 minutes, and a minute rest period was given between conditions (this was the same as from Ward and Helton, 2022). In total, the experiment took roughly 52 minutes to complete.…”

Section: Methodsmentioning

confidence: 99%

“…Ward and Helton (2022) found that when drag force changes in the tracking task were paired with word presentations on the HMD, response times increased by ~15%. This amount of additional time is similar to that found with handheld and hands-free mobile devices in other experiments (Caird et al, 2008); other studies such as Sawyer et al (2014) have also found greater increases in HMD presentations on response time.…”

mentioning

confidence: 99%

“…To clarify the source of the increased delay, we conducted an experiment similar to Ward and Helton (2022). However, we have included additional conditions.…”

mentioning

confidence: 99%

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Dual-Task Interference while Receiving Information on a Head Mounted Display, Visually on the Same Depth Plane, or Audibly

Ward,

Smith,

Helton

2023

Proceedings of the Human Factors and Ergonomics Society Annual

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Wearable displays may enhance information access, but potential interference between device use and the primary operational task may result. Multiple Resource Theory (2002) helps predict which information modalities will interfere, but in the case of head mounted displays (HMDs), the importance of competition for focal attention versus central processing resources in determining dual-task interference remains unclear. We investigated the interference between manual tracking and a word memory task, where words were presented on a HMD, the same display as the tracking task, or audibly. Compared to single-task tracking, performance was impaired by both audio and HMD word presentation, but not by words presented on the same visual plane. This suggests some interference is due to demands on vison itself, not just central resources, and that bottom-up shifts in information seeking may also impair performance. Future research into the best methods of utilizing wearable aids and directing user attention is needed.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

“…To clarify the source of the increased delay, we conducted an experiment similar to Ward and Helton (2022). However, we have included additional conditions.…”

mentioning

confidence: 99%

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Dual-Task Interference while Receiving Information on a Head Mounted Display, Visually on the Same Depth Plane, or Audibly

Ward,

Smith,

Helton

2023

Proceedings of the Human Factors and Ergonomics Society Annual

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Effect of additional tasks on the reaction time of braking responses in simulated car driving: beyond the PRP effect

Stojan,

Bock,

Mack

et al. 2024

Psychological Research

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It well established that the presentation of one task increases the reaction time on a subsequent task, if the stimulus onset asynchrony (SOA) between tasks is less than about 400 ms. This psychological refractory period (PRP) effect has been observed both in classical laboratory paradigms and in simulated car driving. Here we report about an effect that persists substantially longer than the PRP effect. In a driving simulator, 120 healthy older participants followed a lead car that mostly drove at a constant speed, and they had to brake when the lead car braked. Concurrently, they engaged in several additional tasks. SOA between the braking task and the last preceding additional task was about 11.5 s. In a control condition, the braking task was administered without additional tasks. We found that the reaction time of braking responses averaged 0.77 s without additional tasks, but averaged 1.45 s with additional tasks. This increase was less pronounced at smaller inter-vehicle distances, and was not compensated by faster foot movements from the gas pedal to the brake pedal. We conclude that detrimental effects of additional tasks on subsequent braking responses can be much more persistent than the PRP effect, possibly because of the need to maintain multiple task sets. We further conclude that the detrimental effects can be ameliorated at small inter-vehicle distances, possibly by mobilizing extra cognitive resources when response urgency is high. As a practical implication of our study, distracting stimuli can have persisting detrimental effects on tra c safety.

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Evaluating the dual-task decrement within a simulated environment: Word recall and visual search

2023

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Dual-task interference while receiving information on a head mounted display and manual tracking with and without auditory warnings

Cited by 9 publications

References 38 publications

Dual-Task Interference while Receiving Information on a Head Mounted Display, Visually on the Same Depth Plane, or Audibly

Dual-Task Interference while Receiving Information on a Head Mounted Display, Visually on the Same Depth Plane, or Audibly

Effect of additional tasks on the reaction time of braking responses in simulated car driving: beyond the PRP effect

Evaluating the dual-task decrement within a simulated environment: Word recall and visual search

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