A study finds that 100 percent of 20-year-olds,70 percent of 40-year-olds,and only 40 percent of 60-year-olds are able to detect the scent of a single rotten egg in a 10- by 10-foot room.A developmental psychologist would most likely explain this change in terms of a(n)

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This change can be explained in terms of an increase in olfactory sensory threshold, which refers to the minimum concentration of a specific odor needed for an individual to detect it. As people age, their sense of smell often declines, leading to a higher threshold for detecting odors. This is why more 60-year-olds in the study were unable to detect the scent of a single rotten egg in a 10- by 10-foot room compared to 20-year-olds.

A Study Finds That 100 Percent of 20-Year-Olds,70 Percent of 40-Year-Olds,and