Alicia is talking on her cell phone to her friend Maya
If Maya is in a crowded subway terminal, Alicia finds that she has to nearly shout for Maya to be able to hear her. However, when Maya is in a meadow on her grandparents' farm, she can easily tell what Alicia is watching on TV as they talk. This is one illustration of
A) absolute threshold.
B) the just noticeable difference.
C) signal-to-noise ratio.
D) transduction.
Answer: C
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The key function associated with the substantia nigra is:
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