A chemical substance that circulates throughout the brain and travels a relatively long
distance to influence the activity of neurons is called a(n)
a. neurotransmitter.
b. synaptic ion.
c. neuromodulator.
d. enzyme.
e. neuroeffector.
c. neuromodulator.
You might also like to view...
Research by Wilson and colleagues (2007) found that difficulty ____ may be one of the first signs of Alzheimer's disease (AD)
a. recognizing old friends b. remembering phone numbers c. identifying smells d. remembering where items like glasses and keys have been placed
In which section of their research report in Science did Mehl and his colleagues describe their research question regarding whether women talk more than men and then provide background information on this topic by reviewing prior studies on this subject?
a. results b. introduction c. method d. discussion
The hormonal changes accompanying old age in men that correspond to menopause in women are known as ____
a. anemia c. benign prostatic hypertrophy b. andropause d. cryptorchidism
The day-night cycle resets the human biological clock when light causes receptors in the retina to direct input to the ____ of the ____
a. pineal gland; medulla b. pineal gland; hypothalamus c. suprachiasmatic nucleus; medulla d. suprachiasmatic nucleus; hypothalamus