Temporal facilitation and stroboscopic motion.
Luminance of extended-duration adapting field was varied from zero to a level sufficient to reduce brightness of a 5 ms test stimulus to a level just above increment threshold. Increasing the luminance of surrounds or solid adapting fields resulted in increased reaction time. With the perceived-order method, reduction of latency with increasing surround luminance (temporal facilitation) was obtained with a visual comparison stimulus but not with an auditory comparison. It was concluded that perceived motion is a necessary condition for temporal facilitation. This study and earlier studies using moving test stimuli may be explained by a shift from sustained to transient units with increasing adapting luminance.
D000221:Adaptation, Ocular; D000328:Adult; D001307:Auditory Perception / Q000502:physiology; D005260:Female; D006801:Humans; D008027:Light; D008297:Male; D008722:Methods; D009038:Motion; D010775:Photic Stimulation; D011930:Reaction Time / Q000502:physiology*; D012684:Sensory Thresholds; D014796:Visual Perception / Q000502:physiology*