To obtain objective information, researchers sometimes must deceive their subjects. Ethically, research involving deception must always _________

Which of the following is a major finding of the Jenkins and colleagues PET study of motor learning?

A) Dorsolateral prefrontal cortex was activated during well-practiced but not newly learned sequences. B) The cerebellum was more active during well-practiced than during newly learned sequences. C) Contralateral primary motor and somatosensory cortexes were activated during both well-practiced and newly learned sequences. D) all of the above E) both A and B

At the point where the optic nerve exits from the retina, what do we perceive?

a. Only shades of black and white b. Brighter than usual colors c. Optical illusions d. Nothing at all