01:830:338 Lecture Notes - Lecture 12: Thyroid Disease, Cardiovascular Disease, Fluid And Crystallized Intelligence
28 May 2016
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Document Summary
Declines in vision and hearing are related to declines in iq scores. Common cause hypothesis: declines in intellectual abilities and corresponding declines in sensory abilities are likely caused by shared underlying factor. Alzheimer"s disease and other dementias: obesity and high blood pressure. Cognitive abilities are among the most heritable of behavioral traits. Genetics explain 60 percent of individual differences in general cognitive ability. Women have slight advantage over men in episodic memory, verbal tasks, and maintaining brain weight. Sociobiographical history (level of professional prestige, social position, and income). Rate of cognitive decline the same regardless of sociobiographical history. Adults who read books, take classes, travel, etc. , seem to fare better intellectually over time particularly in terms of crystallized intelligence. Causal link between physical exercise and intellectual skill. Exercise helps maintain cardiovascular fitness, which is linked to mental maintenance. Strong relationship between age and subjective reports of cognitive decline. However, there is not relationship between subjective report and actual decline.
