Edgar is experiencing severe back pain that has no identifiable physical cause, that is, there is no damage to bone, muscle, or nerve tissue. Edgar's imaginary pain would be classified as a

The major decline in intellectual function that occurs with aging involves tasks involving speed

Indicate whether the statement is true or false

Parkinson's disease involves the degeneration of neurons within the ________ DA system

A) nigrostriatal B) mesocortical C) hypothalamocortical D) mesolimbic E) retinal-suprachiasmatic