adult vision human 124 Humans 105 female 97 male 95 Visual Perception 89 Adult 79 Female 63 Male 62 physiology 62 young adult 55 Young Adult 53 article 49 human experiment 49 controlled study 44 Article 39 attention 37 Attention 33 reaction time 23 clinical article 22 Reaction Time 17 adolescent 17 association 17 middle aged 17 Adolescent 16 Middle Aged 16 Photic Stimulation 16 photostimulation 16 task performance 16