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The process of detecting, converting,and transmitting raw sensory information from the external and internal environment of the brain is....

Sensation

The minimum amount of a stimulus that an observer can reliably detect is..

Absolute Threshold

_____ pertains to stimuli presented below conscious awareness.

Subliminal

What theory suggests that pain sensations are processed and altered by mechanisms within the spinal cord?

Gate-control

The frequency of sound wave is sense as the ______ of sound.

Amplitude

What are the chemical senses?

Smell and Taste

What is the opponent-process theory?

theory of color vision states that there are three systems of color opposites (blue-yellow, red-green, and black-white)

What is the sense of taste?

Gustation

Light travels through the cornea on the _____lens, and retina.

Pupil

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