Researchers use __________ to infer the role of heredity in complex human characteristics

Emily is out for a leisurely drive and has just witnessed the car in front of her on the highway slow to a stop and pull off to the side of the road

The driver got out of the vehicle and lifted the hood. She is very adept at fixing cars and there are not too many other cars on the road. After considering helping for a bit, Emily continues to drive past the stranded motorist. Why? A) Emily is concerned the driver might be setting up a trap or trick. B) Emily is not sure she will be able to help. C) Emily thinks there probably isn't really anything wrong. D) Emily thinks that someone else will come along to help soon. E) Emily does not want to offer inappropriate help.

Unlike brain imaging techniques, TMS increases or decreases ______ in the brain.

A. imaging B. neurotransmitters C. excitability D. astrocytes