Exam 4: Sensation and Perception-Part C

Nontasters tend to have a greater risk of heart disease than do supertasters.

Pheromones that affect sexual behavior activate neurons in the hypothalamus.

Recent research has demonstrated that homosexuals are more sensitive to pheromones than are heterosexuals.

Hair cells line the basilar membrane.

The valence-centered approach suggests odors first elicit emotions that subsequently aid in the identification of the odorous object.

Perceptual constancy is one reason why humans find it difficult to perceive changes in stimuli.

A single taste bud will contain taste receptor cells for only one of the five possible taste receptors.

We tend to perceive objects higher in our visual field as closer than objects lower in our visual field.

The amplitude of a light wave determines its purity or richness of color.

Our perceptual systems respond more strongly to changes in the level of stimulation than to constant stimulation.

Visual information passes through the thalamus before reaching area VI.

The dorsal visual stream processes the shape and identity of an object.

The blind spot is an area of the retina that lacks both rods and cones.

According to feature-integration theory,attention is not required to detect the size,shape,and color of an object.

You can easily tell the difference between 1 and 2 pounds,but not 200 and 201 pounds,illustrating Weber's Law.

The sensory threshold of being able to detect a teaspoon of sugar dissolved in 2 gallons of water is an example of a difference threshold.

When confronted with two or more possible interpretations of an object's shape,we tend to perceive the simplest one.

About 50% of the adult population are nontasters.

Researchers have found that a specialized area in the temporal lobe responds only when faces are presented in the visual field.

When combining light,mixing a red spotlight and a green spotlight creates the perception of yellow light.