Exam 3: Sensation and Perception

The retina consists of a thin layer of nerve cells at the back of the eyeball.There are two kinds of light-sensitive receptor cells in the retina.They are the rods and ___________.

Visual illusions are physical stimuli that consistently produce errors in perception.

What role does the outer ear have in sound?

Cones are cone-shaped,light-sensitive receptor cells that are responsible for sharp focus and color perception,particularly in bright light.

Taste buds wear out and are replaced every ________ days.

How is visual information coming from individual neurons combined and processed?

Our senses offer a window to the world.

Hearing is the process by which sound waves are translated into understandable and meaningful forms.

Explain the gate control theory of pain.

When light energy strikes the rods and cones,it triggers a neural response that moves out of the back of the eyeball and into the brain through a bundle of ganglion axons called the _______________.

The theory that suggests that there are three kinds of cones in the retina,each of which responds primarily to a specific range of wavelengths,is known as the ____________ theory of color vision.

Opponent mechanisms operate both in the retina and the later stages of neural processing.

A ____________ is any passing source of physical energy that produces a response in a sense organ.

Cones are thin,cylindrical receptor cells that are highly sensitive to light.

_______________ encompasses the processes by which our sense organs receive information from the environment.

The theory that relies on the fact that perception is guided by higher-level knowledge,experience,expectations,and motivations is called _________________.

Rods are cone-shaped,light-sensitive receptor cells that are responsible for sharp focus and color perception,particularly in bright light.

The _______________ are tiny cells covering the basilar membrane that,when bent by vibrations entering the cochlea,transmit neural passages to the brain.

Compare and contrast the roles of the rods and the cones in vision.

A phenomenon in which physical objects are perceived as unvarying and consistent despite changes in their appearance or in the physical environment is known as _____________.