CAS PS 544 Lecture Notes - Lecture 17: Hypokinesia, Substantia Nigra, Headache
17 Dec 2016
School
Department
Course
Professor
Document Summary
Normal aging: aging and the brain. Fluid intelligence shows the greatest decline with aging. Verbal working memory (inferior frontal gyrus hypo-activation) Verbal and face recognition decreased (pfc hypo-activation during learning: different activation during a verbal working memory test. Know each hypothesis and the evidence for each, they are not mutually exclusive: resource-reduction hypothesis. Age depletes attentional resources (i. e. executive control) Hope for intervention: environmental supports/teaching (e. g. encoding strategies) can improve memory performance and increased prefrontal activation. Did just as well in accuracy on this task as young adults. Older adults: both parietal and temporal activation for both tasks. Young adults: parietal activation for location processing, temporal for face processing (more focal) Parallels infant processing: younger have broader/diffuse activation and older have more focal opposite of what is seen in aging. Older brains have more bilateral activation, whereas young adults is more lateralized.
