Simple and powerful visual stimulus generator.
We describe a cheap, simple, portable and efficient approach to visual stimulation for neurophysiology which does not need any special hardware equipment. The method based on an animation technique uses the FLI autodesk animator format. This form of the animation is replayed by a special program ('player') providing synchronisation pulses toward recording system via parallel port. The 'player is running on an IBM compatible personal computer under MS-DOS operation system and stimulus is displayed on a VGA computer monitor. Various stimuli created with this technique for visual evoked potentials (VEPs) are presented.
Kremlácek
J
J
Faculty of Medicine, Department of Pathophysiology, Charles University, Simkova, Hradec Králové, Czech Republic. jan.kremlacek@lfhk.cuni.cz
Kuba
M
M
Kubová
Z
Z
Vít
F
F
D003116:Color; D003196:Computer Graphics; D003936:Diagnosis, Computer-Assisted / Q000379:methods*; D005074:Evoked Potentials, Visual; D006801:Humans; D008838:Microcomputers; D010775:Photic Stimulation / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D012986:Software Validation