DDES9902 Chap.5 Situation Awareness and Therapeutic VR
Situation Awareness and Therapeutic VR
Situation awareness is built through perception of relevant elements, comprehension of their meaning and projection of what may happen next. Immersive displays can support these stages, but excessive information or competing alerts can consume the same cognitive resources needed for action. Cognitive fit helps select a representation suited to the task.
Training and therapeutic experiences intensify these concerns because users may carry learned behaviour, stress or expectations beyond the session. Fidelity and exposure should therefore be purposeful, monitored and bounded by the appropriate professional or operational protocol. Design an alert by starting with the decision deadline and the user's competing task.
The cue must be noticeable, but it should also identify the relevant object or region, communicate why the condition matters and make the required action recoverable. Stable context can remain visible, urgent changes can interrupt, and detail can appear progressively when the user investigates.
Testing should check detection, correct interpretation, response time, missed events and false alarms; attention capture alone is not successful situation awareness. Cognitive fit may favour a map for spatial comparison, a tone for an immediate state change or haptic feedback when vision is already occupied.
Training scenarios should preserve the cues and consequences needed for transfer while preventing virtual shortcuts from teaching unsafe routines. Therapeutic uses require a different boundary: graded intensity, informed consent, monitoring, a stop or reduction path and professional governance. A usability result cannot establish clinical effectiveness.
In both settings, document who can intervene, which observable condition triggers intervention and what claim remains outside the prototype evidence. The strongest design supports the next action without pretending that more information or stronger sensation necessarily creates better judgement.
What this chapter covers
- 01
Perception, comprehension and projection in situation awareness
- 02
Cognitive load limits and the cost of competing cues
- 03
Cognitive fit between representation and required operation
- 04
Alert salience, meaning, escalation and recovery
- 05
Training transfer and the risk of teaching unsafe habits
- 06
Therapeutic exposure as a guarded application rather than a product claim
Worked example · free
Redesign a warning for a rail-training scene
- +1Keep route context visible so the warning does not remove awareness of nearby movement.
- +1Use a directional tone and pulsing amber boundary to support perception without covering the scene.
- +1Add a plain-language action label and escalate only if the trainee continues toward the risk.
- +1Log alert timing, gaze direction and the resulting action to test comprehension and recovery.
Key terms
- Situational awareness
- Perception of relevant elements, comprehension of their meaning and projection of their future state.
- Cognitive load
- The demand placed on limited mental resources during perception, memory and decision-making.
- Cognitive fit
- The match between an information representation and the operation a user needs to perform.
- Alert salience
- The capacity of a warning to attract attention relative to competing information.
- Training transfer
- The extent to which behaviour learned in a simulation carries into the target setting.
- Exposure therapy
- A clinician-guided process of controlled contact with feared cues under an appropriate treatment protocol.
Situation Awareness and Therapeutic VR FAQ
Why can more information reduce situation awareness?
Attention and working memory are limited. When many elements compete, a critical cue may be missed or its meaning may not be integrated with the wider situation. Organise information by task and urgency, keep context stable and reveal detail when it supports the next decision.
What does cognitive fit change in interface design?
It asks whether the representation matches the mental operation. Spatial relationships may suit a map, while exact attribute comparison may suit a table or list. The best choice lowers unnecessary effort without hiding uncertainty or making an important relationship harder to inspect.
Can a student prototype claim therapeutic effectiveness?
A prototype can explore an interaction, pacing or consent concept, but it does not establish clinical suitability or efficacy. Describe professional oversight, stop and adjustment controls, participant protection and the evidence boundary. Avoid treatment promises that exceed the captured course research or an approved protocol.
Assessment move
Reconstruct the three levels of situation awareness from memory and apply them to a specific task. For every interface element, state which level it supports and remove items that have no decision role. Practise converting alerts into complete chains: condition, cue, meaning, required action, escalation and evidence of recovery.
Compare a map, text label, tone and haptic cue according to cognitive fit rather than aesthetic preference. For training scenarios, list task-critical cues and identify any shortcut the simulation might accidentally reward. For therapeutic examples, keep design discussion within a guarded protocol and distinguish a plausible interaction from a claim of effectiveness.
In project writing, explain how cognitive load shaped priority, timing or progressive disclosure, then show observed behaviour that supports the change.
