For surveys on perceptual learning, see [95,99,110,257]. Hyperacuity through perceptual learning is investigated in [102,257]. In  it is established that perceptual learning can occur without even focused attention.
Human sensitivity to latency in VR and computer interfaces is analyzed in [63,68,202,364]. Comfort issues in stereo displays is studied in . For connections between postural sway and sickness, see [299,318].
For some important studies related to VR sickness, see [13,148,149,155,227,267]. General overviews of VR sickness are given in [145,171,310]. Motion sickness is surveyed in . See [121,140,56,259] for additional coverage of forced fusion.
For coverage of the mathematical methods and statistics for human subjects experimentation, see . The book  is highly popular for its coverage of hypothesis testing in the context of psychology. For treatment of psychophysical methods, see [178,330,356] and Chapter 3 of .