The convergence of rods on ganglion cells

		a.  increases visual resolution
		b.  improves color vision
		c.  creates a blind spot on the retina
		d.  increases visual acuity

Hubel and Weisel (1963) recorded from individual neurons fromvisual cortex. They found that neurons in primary visual cortex

		a. responded selectively to elementary features of visualstimuli
		b. responded selectively to geons but not to differentcolors
		c. did not respond selectively to any visual stimuli.

1. Desimone, et al (1984) presented macaque monkeys with stimulithat included bananas, black snakes, toilet brushes, and faces, andrecorded from individual neurons from visual-temporal cortex. Theresults showed that

   		a. neurons responded to all of these stimuli in the sameway.
   		b. neurons responded selectively to face stimuli.
   		c. neurons responded selectively to the snake stimuli.
   		d. neurons responded selectively to the faces and the toiletbrush stimuli.

I keep talking about “neurons responding selectively” to things.What does it mean for a neuron to “respond selectively”?

		a. The neuron fires when it wants to, no matter what thestimulus is.
		b. The firing rate increases and decreases randomly.
		c. The neuron fires more when a stimulus is presented andsignificantly less when the stimulus is not presented.