Exam 5: Sensation and Perception

Amadi is listening to John play the guitar. When John plays a note, the vibrations of the air are picked up by auditory receptors in his ear and sent to his brain. In Amadi's brain, the information from the receptors is analyzed to produce the experience of a musical note. The pickup of information by receptors in the ear is ____________; the processing to produce the experience of a musical note is ____________.

Prolonged exposure to movement in one direction ____________ the motion detectors sensitive to that direction. When the movement stops, the baseline firing rate of detectors for the opposite direction of motion will be ____________ than the firing rate for the detectors that responded to the prolonged movement, leading to motion after-effects.

During baseball practice, the third-base coach yells to the pitcher to throw a fastball. The pitcher knows that it is the third-base coach, not the first-base coach, who is talking to him because the sound of the coach's voice reaches his left ear ____________ than his right ear and is ____________ in his left ear than his right ear.

If you close one eye, you will still be able to use ____________ as a depth cue, but you will not be able to use ____________ as a depth cue.

Aditi is looking out the window of the back seat of a car. She is staring intently at a scarecrow in the middle of a large cornfield. The rows of corn between Aditi and the scarecrow seem to be moving in the ____________. The rows of corn beyond the scarecrow seem to be moving in the ____________.

Encharta is sitting outside, looking at her beautiful garden. As the sun goes down, the colours become less bright and finally all become shades of grey. This is because:

The auditory neurons extending from the ____________ reach out with their axons to the primary auditory cortex (A1) in the ____________ lobe.

Charlie has just undergone a successful experimental procedure to restore his sight. How well he will be able to perceive the world will depend primarily upon:

Annabeth is almost an hour late to meet Keir for dinner. At the entrance to the restaurant, she scans the room to see where he is sitting. Her ____________ enables her to recognize Keir and her ____________ registers his mood and makes her cautious in approaching him.

In one of the most common types of visual receptive fields, light falling in the centre region ____________ the cell and light falling in the surrounding region ____________ the cell.

Gervase is staring at the blades of his ceiling fan, searching for inspiration for a paper that he is writing. When he turns off the fan, he is very surprised that the blades appear to be rotating in the opposite direction. You could reassure Gervase that he is not hallucinating from being overworked by telling him about:

Diane is experimenting with the lighting she will use at a rock concert. When she lights the stage blue, she is flooding it with ____________ wavelengths of light. If she wants to change the stage to look red, she will need to shift the light to include ____________ wavelengths. To change from red to green, she will need to move to ____________ wavelengths.

Ayelet is trying to draw a picture of two people on opposite sides of a river. No matter how carefully she tries to draw the two people the same size, the person who is supposed to be on the distant side seems to be much taller than the person who is supposed to be on the closer side. You could explain that the depth cue of ____________ means that she will need to draw ____________ of the person who is to be seen as farther away.

Sameer is mixing paint. He starts with a very deep green paint and then gradually adds white paint. Sameer is ____________ of the green paint.

If you look at a sheet of white paper in a dim room and then look at it in bright sunlight, the paper will reflect more light to the eye when you are outside than inside. Yet we see the paper as having the same lightness in both situations. Why?

In which of the following cases will the most accurate facial recognition occur?

What is the primary purpose of cells in the olfactory bulb?

Daniel is standing on the outside platform of the train station. He is looking down the tracks hoping to see his train. As the tracks get further from him the two sides of the tracks will appear to ____________, providing the depth cue of ____________.

When the moon is high in the sky it will appear ____________ when it is close to the horizon.

Dogs can hear higher frequency sounds than people. This suggests that there is an anatomical difference in the: