Curiosity Weekly
Aging & Colors, First Continents, Phones & Infant Health
Mar 6, 2024
Learn how our perception of colors changes with age, the origins of the first continents on Earth, and the surprising link between mobile phone ownership and higher birth weights in infants. Dive into color perception in older adults, the geological history of Earth's crust, and the impact of technology on infant health.
11:04
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Quick takeaways
- As people age, color perception changes due to reduced sensitivity to color saturation, impacting their preference for brighter colors.
- Earth's first continents originated from specific rocks called T-T-G, revealing insights into the formation of the Earth's surface.
Deep dives
Aging Affects Color Perception
As people age, their perception of colors changes due to reduced sensitivity to color saturation. Researchers found that older participants' pupils constricted less when exposed to colors, especially greens and magentas. This decline in color saturation sensitivity is linked to changes in the primary visual cortex, making older adults less sensitive to colors, which could explain their preference for brighter colors.
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