Ganel et al. (2008 ) designed a modified Ponzo (visual) illusion in which line 1 appears to be longer than line 2, when, in reality, line 2 is longer. Participants are asked to judge the line lengths and to reach and grab the ends of the lines. The results of this investigation reveal _____.
A) the interaction of the ventral and dorsal stream
B) that the visual illusion affects both the ventral and dorsal streams
C) the effects of damage to the ventral pathway
D) that the illusion only affects ventral stream processing
Question 2
The results of the patient D.F., who had visual form agnosia, show that _____.
A) perception and action are independent of each other in the brain
B) the same brain areas are involved in visual orientation and oriented action
C) the inability to draw items is due to a lack of general knowledge
D) double dissociations do not occur in these patients
A visual pigment.
Visual Acuity Testing, Snellen Vision Chart
Funny optical illusion
Line analysis of Titian, Assumption and Consecration of the Virgin.
Johannes Gutenberg, Page from the Forty-Two-Line Bible, Mainz.
Testing visual fields by confrontation