in the Maller-Lyer illusion it is believed that the fin angles act as depth cues. That is from angles 105" to 165" our brains interpret it as an edge coming towards us and angles 15 to 75" appear as Inner edges of walls. At what angle would you expect the ilusion to have the least effect? 120 TT 90 O 165 D 15 a The illusion should be the same regardiess of the angle of the fins. QUESTION 2 A plausible explanation for the Mueller-Lyer illusion, the perception of the lines as differing in length when they are actualy the same length, is that it. o is due the fact that the lines at the end appear to be arrows pointing in or out occurs because we process horizontal ines differently from vertical ines o is based on our experience with the interior and exterior of buldings o most people are just easily fooled QUESTION 3 The tendency to interpret an object as always being the same physical dimensions, regardiess of its distance from the viewer, is known as size constancy shape constancy o brightness constancy O color constancy