Chapter 4-3
The main function of dendrites is to
receive information
The gate-control theory suggests that incoming pain sensations may be blocked at the
spinal cord
Petra looked directly into a very bright light and damaged her retina. The ophthalmologist has told her that she has sustained massive damage to her cones, but for the most part her rods have not been affected. one change that you could predict for Petra's vision is that she will now have
No color vision
Which statement about the gustatory statement is not accurate?
The physical stimulus for taste is any molecular substance
An action potential is
an electrical signal that travels along the axon of a neuron
When you walk into a dark room your vision gradually improves so you can see more of your surroundings. This is an example of
dark adaptation
When a clarinet plays a high C followed by a low C, these two notes are perceived differently because they differ in
frequency
Cells found in the nervous system that insulate, nourish, and direct the growth of neurons as well as remove the dead neurons and waste products are known as
glia
The primary visual cortex is located in the
occipital lobes
The sensory receptors for smell are referred to as
olfactory cilia
As a result of the pathway through which visual information travels from the eye to the visual cortex, images seen in the left visual field are received in
only the right visual cortex
After having your picture taken with a yellow flash, you momentarily see blue spots floating before your eyes. This phenomenon is best explained by
opponent-process theory
Our perception of the brightness of a color is affected mainly by
the amplitude of light waves
Ashlynn was listening to a tape recording of a famous speech that was being played backward. She just heard gibberish until a classmate said the phrase, "meet me in st. louis." was clearly spoken. the tape was rewound and as Ashylynn listened this time, she also clearly heard the same phrase. Ashylynn's ability to detect the phrase the second time through the tape illustrates
the top-down processing model of perception
Charlie's eyes function normally, but he is unable to recognize objects. Charlie is suffering from
visual agnosia