01:830:338 Lecture Notes - Lecture 10: Semantic Memory, Episodic Memory, Adult Development
28 May 2016
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Document Summary
Global capacity of the individual to act purposefully, think rationally, and deal effectively with his environment (wechsler, 1939). g: central, general intellectual capacity. Age changes in total iq based on cross-sectional data (lower line) and longitudinal data (upper line). Depending on cross-sectional data in the past led to erroneous conclusions that cognitive performance begins to decline around 40 and after that the decline is very fast. Average iq scores for groups of older adults increase steadily over 20th century. Crystallized intelligence: dependent on education and experience; rises or shows stability into the 70s. Fluid intelligence: require adaptation to new situations not dependent of education/experience; begins to decline earlier. Individual differences prevail across all facets of intelligence and age. Memory: ability to retain or store information and retrieve it when needed; not a single ability. Most adults over 65 report declines in memory functioning. Short-term (primary) memory: information held for 30 seconds and passively stored for immediate recall.
