TEN TYPICAL MULTIPLE-CHOICE EXAM QUESTIONS

AS USED BY PROFESSOR HARRIS

1 In the figure of the human eye, which of the following labels are correct?

 a) "A" is the blind spot
 b) "B" is the pupil
 c) "C" is the main refractive element
 d) "D" is the fovea
 e) all of the above

2 The reason we cannot see light that falls on the blind spot is

 a) photoreceptor cells in that region of the retina are light adapted
 b) photoreceptor cells in that region of the retina are dark adapted
 c) photoreceptor cells in that region of the retina are covered by blood vessels
 d) the cortex suppresses vision in this area
 e) none of the above

3 An ophthalmoscope is

 a) a device for measuring how far you can see in each direction
 b) a device for looking at electrical waveforms
 c) a device for looking into eyes
 d) specifically for testing children's vision
 e) a tube inserted into eyes through the pupil

4  A person suffering from short-sightedness has

 a) an eye that is too long and needs a convex lens to focus distant objects
 b) an eye that is too long and needs a concave lens to focus distant objects
 c) an eye that is too short and needs a convex lens to focus near objects
 d) an eye that is too short and needs a concave lens to focus near objects
 e) none of the above

5 An animal that lives under water (eg. a fish)

 a) cannot use the cornea to refract light into a sharp image
 b) needs a stronger lens than a land-dwelling animal
 c) needs a weaker lens than a land-dwelling animal
 d) a and b
 e) a and c

6 An ELECTRODE

 a) is part of a nerve cell
 b) is a device for measuring electrical events
 c) is the junction between nerve cells
 d) is another name for ACTION POTENTIAL
 e) none of the above
 
 

7 Rods and cones

 a) have different physical shapes
 b) have different distributions across the retina (more cones in foveal region)
 c) have different distributions across the retina (more rods in foveal region)
 d) a and b
 e) a and c
 
 

8 The visual receptive field of a cell is

 a) that area of the image from which light will have an influence on that cell
 b) any area on the retina
 c) the visual area that the person can see (from about 110 degrees to the left to about 110 degrees to the right)
 d) the entire retina
 e) the entire image
 

9 The relay station between the retina and the cortex is

 a)   the optic chiasm
 b)   the visual cortex
 c)   the superior colliculus
 d) the lateral geniculate nucleus of the thalamus
 e)   the vestibular nucleus
 

10 A simple cell in the visual cortex

 a) has a receptive field shape similar to retinal ganglion cells (ie. circular)
 b) responds best to corners
 c) responds best to bars
 d) is not fussy about orientation
 e) all of the above