Sherrington deduced that transmission at a synapse must be slower than conduction along an axon. This was based on what kind of evidence?

Sickle-cell disease

a. occurs in individuals who have one allele for normal blood cells and one allele for sickle-shaped cells. b. is not an inherited disorder. c. is not a serious health problem because it is easily cured. d. is becoming less common in successive generations of African Americans.

Which of the following is NOT an important reason why someone would fail to show an emotional response to evocative words when undergoing an fMRI assessment?

a) They might not have paid attention. b) They might not have understood the words. c) They might be distracted by the loud noises of the machine itself. d) Evocative words alone should not produce an emotional response.