Exam 5: Sensation and Perception

Isaac is in a room that is almost completely dark. He notices while lying in bed that if he tries to focus on the faint little red light on the fire detector, it seems to disappear. When he asks his mother why this happens, she explains that the eye receptors that understand colour do not function well in very dim light. To which receptors is she referring?

Colin was involved in an accident that damaged his left eardrum. Though the injury reduced his ear's capacity to transmit vibrations, a hearing aid greatly improves his ability to hear. Colin has ___________________ deafness.

Endorphins exert some of their pain-killing effects by inhibiting the release of __________ involved in the sympathetic transmission of pain impulses from the spinal cord to the brain.

A researcher wants to find support for the trichromatic theory of colour vision by recording the activity in visual cells. Which of the following cells should he be recording from?

When shown a picture of a hunting scene, African people perceived the hunter as attempting to kill a baby elephant, while Westerners tended to perceive that the hunter was after another animal and thought that the baby elephant was actually an adult elephant off in the distance. These results were presented as an example of the lack of consistency across cultures of __________ depth cues.

The amplitude of a sound wave is the same as the frequency of the wave?

If you have normal colour vision, you are referred to as a ___________, whereas if you are red/green or yellow/blue colour-blind, you are referred to as a ___________.

Recent research on colour transduction has indicated that the opponent-process theory of colour was inaccurate because opponent processes are actually determined NOT by the cones but by the _______________.

You are meeting some friends at a pub. You haven't been to this particular pub before but know they are sitting near a stage where some musicians are playing. When you arrive, you hear a band playing a cover of a song you recognize and walk towards the music, finding your friends almost immediately. Which of the following forms of processing would have to take place in this example?

Which of the following would be an example of the influence of top-down processing?

What happens in the Ponzo illusion?

One of the primary advantages of Weber fractions is that they _______________.

How does our tendency to separate figure and ground contribute to perception?

Suffering occurs when there is _______________.

Weber's law suggests that the just noticeable difference (jnd) is related to the _____________ of the comparison stimulus.

The Muller-Lyer illusion occurs when a line appears longer when the V-shaped lines at its ends radiate outward. Cross cultural research on this illusion has found that

Consider the following image: We are likely to interpret this as three sets of two lines each rather than six separate lines due to the Gestalt law of ____________.

The Weber fraction for a human's ability to taste salt is 1/3. So, if you decide that there's not enough salt on your French fries, how much would you have to add to notice a difference?

Ordinarily, we perceive the world accurately; however, visual illusions can be attributed to _______________.

Colour blindness is typically assessed by