Where does 10 of every 11 new HIV infections occur?

Maya's parents decided to use operant conditioning to get their daughter to keep her room neat. According to Skinner's theories, they should

a) first give her a reward; a happy child will want to please. b) catch her in the act of putting something away, and then reward her. c) straighten up the room for her; she will learn by example. d) threaten to take away her TV privileges if she does not clean up.

V1 neurons would be most strongly activated by viewing ____

a. the letter T b. a circle c. repeating stripes on a flag d. a single bar of light