EMMA - an eye-movement measurement and analysis system

Motor deficits and recovery during the first year following mild closed head injury

“…Eye movements were elicited by instructing the subject to follow a computer-generated stimulus (for reflexive and anti-saccades: a red/green square target, subtending 0.75 , front-projected onto a video screen 1.72 m in front of the subject; for memory-guided sequences and self-paced saccades: a LED bar 1.5 m in front of the subject; for oculomotor smooth pursuit: a circle with a centred cross, subtending 4.82 , front-projected onto a video screen 1.72 m in front of the subject). The tests were generated and controlled by a PC which also recorded the data for off-line analysis [52]. The equipment was calibrated at the start of the session and between tests.…”

The impact of mild closed head injury on involuntary saccadic adaptation: Evidence for the preservation of implicit motor learning

“…Eye movements were recorded using the infra-red scleral reflection oculography technique [36] (IRIS, Skalar Medical, BV, Delft, The Netherlands). Eye position signals were low-pass filtered at 100 Hz, sampled and digitized at 200 Hz and recorded by a PC for off-line analysis [37]. Subjects were seated in a darkened room.…”

Eye movement and visuomotor arm movement deficits following mild closed head injury

“…Eye movements were elicited by instructing the subject to follow a computer-generated stimulus [for saccades, a red square target, subtending 0.75°, front-projected onto a video screen 1.72 m in front of the subject or a light-emitting diode (LED) bar 1.5 m in front of the subject; for oculomotor smooth pursuit, a circle with a centred cross, subtending 4.82°]. The tests were generated and controlled by a PC (Muir et al, 2003) which also recorded the data for off-line analysis. The equipment was calibrated at the start of the session and between tests.…”