Exam 4: Sensation and Perception

Teresa,a young woman,sees words in colors and sees shapes whenever she hears a sound.In the context of sensory receptors and the brain,Teresa's experiences best illustrate the phenomenon of

_____ are individual neurons or groups of neurons in the brain's visual system that respond to particular characteristics of a stimulus.

Josh,a teenager,is attending his first party.He wants to ask a girl,Fiona,to dance but does not know whether she will say yes.He notices that Fiona is pretty,a little shy,and wants to dance.He also sees that she is not surrounded by friends.Which component of the signal detection theory is Josh illustrating by gathering these details about Fiona?

The semicircular canals of the inner ear aid in detecting head motion.

In the context of the visual system,which of the following scenarios best illustrates the need for the functioning of rods in the retina?

_____ is the process of focusing awareness on a narrow aspect of the environment.

Samantha was injured in a skiing accident,due to which she lost her sense of hearing.The doctor who operated on her injuries stated that the hair cells in Samantha's ears were damaged.In order to help Samantha detect sound again,the doctor should suggest a

Objects that resemble one another are often perceived as a unit.This is the gestalt principle of

In the context of sensation,which of the following receptors is most activated when a person is tickled?

Derek is watching an airplane fly by.The plane seems to get smaller as it goes farther away.Which of the following aspects of perceptual constancy allows Derek to understand that the airplane is not getting smaller?

In the auditory system,a sound wave's _____ is the amount of pressure the sound wave produces relative to a standard.

In the context of the chemical senses,taste buds are bunched together in the

Explain how two-dimensional images on the retina are perceived as three-dimensional objects.

In the context of sensory receptors,the intensity of the stimulus is communicated to the brain by varying the _____ of the action potential sent to the brain.

The _____ theory of perception states that detection of sensory stimuli depends on a variety of factors besides the physical intensity of the stimulus and the sensory abilities of the observer.

In the context of sensory receptors,the intensity of a stimulus cannot be communicated to the brain by changing the strength of the action potential.

_____ refers to detection of information below the level of conscious awareness.

The blind spot is the area on the retina that contains

In the context of the chemical senses,which of the following is true of the neural pathway of smell?

In the visual system,_____ are the receptors in the retina of the eye that are sensitive to light but are not very useful for color vision.