Exam 4 Flashcards
Brain volume decreases due to
Shrinkage of neurons, lower number of synapses, reduced length and complexity of axons, and reduced tree like branching in dendrites
Brain loses 5% to 10% of its weight between ages
20-90
Life span
Max number of years an individual can live. 120 to 125 yrs
Life expectancy
Number of years the average person born in a particular year will probably live . Estimates for the U.S. by 2030, women-83.3, men-79.5 yrs
Cataracts
Thickening s lens causes vision to become cloudy, opaque, and distorted
Glaucoma
Damage to optic nerve because of pressure created by fluid buildup in the eye
Macular degeneration
Deterioration of the retinas macula, which corresponds to foca, center of the visual field
Lung capacity drops 40% between ages
20-80
Explicit memory
Facts and experiences that individuals consciously know and can state
Episodic memory
Under explicit. Retention of info about where and when of life’s happenings
Semantic memory
Under explicit. Persons knowledge about the world
Labor force men and women 75 and over
Women up 87%, men up 45% since 2000
Implicit memory
Memory without conscious recollection that involve skills and routine procedures that are automatically performed. Doesn’t go away, ex: baking
Expert knowledge about the practical aspects of life that permits excellent judgment about important matters
Wisdom
Neurological disorder in which primary symptoms involves deterioration of mental functioning
Dementia