PSYCH FINAL - Cognitive Development Demographic Shift in...

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Cognitive Development  Demographic Shift in Population Now we’re dealing w the consequences from the baby boomers Decreased infant mortality People’s health improving Changes in Perception Vision Accommodation-ability to focus color sensitivity Color sensitivity-color discriminate, dark adaptation, adjusting dark to light, light to dark Visual acuity-identify stationary and moving objects Hearing Presbycusis-decreased pitch and tone sensitivity Cognition “Pathological” aging caused  by diseases like vascular dementia (memory problems) “Normal” aging significant and measurable cognitive changes short term memory-passive storage of info working memory-storage of info and processing reasoning-simple tasks spatial visualization-mentally rotating patterns, shapes Research Designs Cross sectional vs Longitudinal Cross sectional- studies relationship between different       variables at a point in time Longitudinal-testing that group over time (better estimate) Cohoart Effects Describes variations in the characteristics of an area of study   over  time among individuals who are defined by some shared temporal  experience. Older adults do better at doing math problems, younger adults use  calculators
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Changes in Cognition Role of Lifestyle factors Indirect “Distal” Mental exercise Old ppl doing puzzles and what not, use it or lose it. The Nun Study-600+ nuns wrote autobiographies when entering convent,  complexity of language (sentence length) predicted cognitive functioning  in old age. Physical exercise Positive effects on cognitive tasks Pre-frontal lobes – aerobic exercise improves functioning What processes change? Direct “proximal” General Slowing Everything slows down Younger adults faster w/ comparisons Inhibitions Older ppl more likely to get off tasks by distractions that younger ppl (rose  zacks) Paradox of Cognitive Aging How do people perform well despite declines?
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