Exam 10: Vision and Visual Perception

Which of the following is a main difference between the receptive fields of ganglion cells and the receptive fields of cortical cells?

In lateral inhibition, the greater the stimulation of a receptor, the ______ the inhibition of its neighbor, and thus the ______ the perception.

How many people worldwide are estimated to be suffering from some form of visual impairment in one form or another?

As Hubel and Weisel discovered, orientation cells are arranged in such a way that each section of cortex includes a column made up of a complete 360-degree set of orientation cells. These columns are about a distance of ______.

Which of the following brain areas has NOT been suggested as the main area where binding takes place?

Describe the visual pathways. Include in your answer cells and layers of the retina and their projections to the thalamus and to cortical areas.

The type of arrangement of the receptive fields of cortical cells provide us with what type of visual information?

Which of the following would you expect of a species that is active during the night and sleeps during the day?

Which of the following statements is evidence of damage to the ventral stream?

Define object agnosia, prosopagnosia, color agnosia, and movement agnosia. What causes these syndromes?

Describe how colors are detected and processed in the retina before being sent to the brain.

Define lateral inhibition and, using an example, describe how it works to define an object's edge.

Jerry has been blind for several decades. If you show him a picture of a bear that is snarling and about to attack, he says he cannot see anything. Nevertheless, for some reason he feels a bit scared about the picture. What did Jerry just experience?

Which structure seems most implicated in radial movement?

Color agnosia is ______.

Stephen had a stroke, but he was rushed to the hospital in time to reverse most of the effects of the stroke. However, he did notice that he could no longer recognize his wife or family members by face. If his doctor performed an MRI scan of his brain, what brain area would most likely have been affected by the stroke?

What is the result of damage to the VWFA?

Which of the following is a main difference between the parvocellular and magnocellular pathways of vision?

After initial processing in V1, to which other lobe does the visual information from the parvocellular system travel?

The human eye is an organ specialized for the detection of ______.