Which Statement About the Perceptual Narrowing Effect Is True

question 92

Multiple Choice

Which statement about the perceptual narrowing effect is true?

• A) Babies are not sensitive to speech sounds, but they become so over time.
• B) Human babies cannot discriminate individual faces of humans or monkeys.
• C) Six-month-olds can detect rhythmic changes in both Western and non-Western melodies.
• D) After exposure to Western music, 12-month-olds become aware of changes in non-Western rhythms.

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Definitions:

Quantitative Trait

A measurable phenotype that varies among individuals over a given range to produce a continuous distribution of a phenotype. Quantitative traits are sometimes called complex traits; they’re also sometimes called polygenic traits because their variation can be attributed to polygenic effects (that is, the cumulative action of many genes).

Heritability

The proportion of variation in a trait among individuals that can be attributed to genetic differences.

Heritability

The proportion of observed variation in a particular trait that can be attributed to inherited genetic factors in a population.

Genetic Basis

The underlying genetic components and mechanisms that contribute to a specific trait, behavior, or condition in an organism.