From: Assessing the visual and cognitive demands of in-vehicle information systems
Modality | Mean | Lower | Upper | |
---|---|---|---|---|
Cognitive demand of modality | ||||
 Center stack | 1.20 | 1.17 | 1.23 | |
 Auditory vocal | 1.10 | 1.07 | 1.12 | |
 Center console | 1.42 | 1.36 | 1.48 | |
Visual demand of modality | ||||
 Center stack | 1.49 | 1.46 | 1.52 | |
 Auditory vocal | 0.77 | 0.75 | 0.80 | |
 Center console | 1.22 | 1.16 | 1.29 | |
Subjective demand of modality | ||||
 Center stack | 1.00 | 0.97 | 1.02 | |
 Auditory vocal | 0.63 | 0.61 | 0.66 | |
 Center console | 0.94 | 0.89 | 1.00 | |
Temporal demand of modality | ||||
 Center stack | 0.86 | 0.84 | 0.84 | 0.88 |
 Auditory vocal | 1.24 | 1.22 | 1.22 | 1.27 |
 Center console | 1.06 | 1.03 | 1.03 | 1.09 |