1) The connections between neurons in the retina, specifically the connections referred to as “lateral inhibition,” help us see which of the following better?
<em><u>A) Contrast</u></em> B) Faces <span>C) Colors
2) </span>Improving the contrast of an image (making the dark regions darker and the light regions lighter) helps us to identify:
<em><u>A) The edges of objects</u></em> B) The center of objects <span>C) The color of an object </span> 3) What assumption does our visual system make in order to see curved surfaces (domes, holes)?
<em><u>A) Light comes from above</u></em> B) Curved surfaces are always evenly lit <span>C) Curved surfaces are always easy to see, no assumptions are made </span> 4) Which part of the face does our brain pay the most attention to?
<u><em>A) Eyes and mouth</em></u> B) Eyes and ears <span>C) Eyes and chin </span> 5) If all these assumptions sometimes lead to mistakes, for example in these optical illusions, why do we make them?
A) It helps us see things faster B) It helps us see things correctly C) It helps us pay attention to what's important <span><em><u>D) All of the above </u></em></span> Hope that helps :) *the correct answers are bolded, italicized, and underlined.*
The force of gravity is the only force that keeps a pendulum in motion. both the force increases the speed of the pendulum on the downswing and decreases it's speed on its upswing.
