Using both eyes allows us to have depth perception, where having only one eye would not allow it.

Which of the following is most likely to develop PTSD?

Studies show that following a trauma, the amount of support an individual may get from family and friends will have little to no effect on them developing PTSD. 

During REM sleep, voluntary control of the large muscles is lost, perhaps because this:

Joe had a lot on his mind and was always distracted. He was constantly forgetting where he put his keys. This would be an example of 

The brains biological clock is located in the

In the center of the retina there are no rod and cones. What causes this?

When the bird sings outside Carrie’s window, Carrie can hear the bird 50% of time when it is singing. This would be an example of

In harmful dysfunction definition of psychological disorders, dysfunction involves 

This is our memory of the meaning of things.