physiology vision Humans 90 human 90 Visual Perception 79 male 70 female 68 Male 66 Female 64 adult 62 Adult 56 Young Adult 53 young adult 53 attention 34 Attention 33 article 29 human experiment 27 procedures 21 controlled study 20 Photic Stimulation 19 photostimulation 19 Article 18 Cues 15 association 15 learning 15 reaction time 14 Memory, Short-Term 13 short term memory 13 Psychomotor Performance 12 Reaction Time 12