Which of the Following Explains Why a Person Hears a Scale

question 54

Multiple Choice

Which of the following explains why a person hears a scale that sounds like it increases in pitch continually in Shepard Tones?

• A)Timbre differences create an illusion of higher pitch, but all the tones are the same frequency.
• B)White noise is presented simultaneously with the scale to phase out the decreased frequencies.
• C)It is an illusion created by simultaneously sweeping different pure tones, which are an octave apart.
• D)Notes one octave apart go into each ear, and then are switched, making the pitch seem higher though the two notes do not change.

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Definitions:

Pleasure

A feeling of happiness or satisfaction derived from experiencing something enjoyable or satisfying.

Garcia Effect

A phenomenon in which an aversion or distaste for a particular taste or smell is acquired after sickness or nausea is associated with that specific taste or smell.

Conditioned Aversions

A learned aversion to a substance or activity after it has been associated with an unpleasant or harmful stimulus.

Livestock

Domesticated animals raised in an agricultural setting to produce commodities such as meat, milk, and wool.