Electrical stimulation of the ___________ is as potent as a large ...

[beccaep]

Electrical stimulation of the ___________ is as potent as a large dose of morphine.
 
  a. periaqueductal gray
  b. medulla
  c. somatosensory cortex
  d. ACC

Question 2

When determining location of a sound, we use ___________ for low frequencies and ___________ for high frequencies.
 
  a. phase differences; intensity differences
  b. intensity differences; phase differences
  c. loudness differences; intensity differences
  d. loudness differences; phase differences

[kilada]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A

[beccaep]

Thanks for the timely response, appreciate it

[kjohnson]

Gracias!