Suppose We Present a Weak,brief Stimulus That an Observer Does

Multiple Choice

Suppose we present a weak,brief stimulus that an observer does not perceive consciously.What happens if we gradually increase the stimulus from one trial to the next?​

A) Either activity spreads widely in the brain or it does not. Intermediates do not occur.
B) ​For stronger stimuli, activity gradually spreads to more and more of the brain.
C) ​For stronger stimuli, action potentials gradually travel faster and faster.
D) ​For stronger stimuli, activity gradually persists longer and longer in the brain.