Exam 4: A: Sensation and Perception

Despite the fact that we have only about 1000 different types of receptors,we can detect about 10 000 different odours.

When measuring absolute threshold,reliable detection is said to occur when a person can detect a signal 99 percent of the time.

The intensity or brightness of light corresponds to the amplitude of the light wave.

The terms sensation and perception have the same meaning and are interchangeable.

The intensity of a wave's pressure corresponds to a sound's pitch.

There are no effective treatments for phantom limb pain.

Dark adaptation is the process by which visual receptors become increasingly sensitive to dim light.

There are three basic types of cones in the retina,each of which responds maximally to a different wavelength.

A sound coming from your left will reach your left ear faster and with more intensity than it will reach your right ear.Your brain can use these two facts to compute the location of the sound's source.