Level of education is positively correlated with risk of Alzheimer's disease.

We can see a candle flame at 30 miles on a clear, dark night, and we can hear the tick of a watch 20 feet away in a quiet room. These two facts are examples of __________

a) jnds b) difference threshold. c) adaptation. d) absolute thresholds.

Peter suffers damage to his left frontal lobe and loses the ability to speak, although he can still understand speech

Despite the permanence of this damage, he is able to recover some of his speech due to the ability of other parts of the brain to take over lost function. This phenomenon is known by neuroscientists as a. flexibility. b. adaptiveness. c. plasticity. d. compensation. e. homeostasis.