Aging 1 Aphasia 1 Article 1 Eye-tracking 1 Reading comprehension 1 Sentence comprehension 1 adult 1 age distribution 1 aged 1 animacy 1 aphasia 1 comprehension 1 controlled study 1 eye movement 1 eye tracking 1 female 1 healthy aging 1 human 1 human experiment 1 male 1 normal human 1 online reading 1 priority journal 1 reading 1 reading time semantics 1 sentence structural complexity 1 silent reading 1 syntactic complexity 1 time 1