Ch. 3 Flashcards
_____ _____ _____ is the smallest difference between two stimuli that is detectable 50% of the time.
Just noticeable difference
_____ is the activation of receptors in the various sense organs.
Sensation
The smallest amount of energy needed for a person to consciously detect a stimulus 50% of the time it is present it’s called _____ ______.
Absolute threshold.
The process by which subliminal stimuli act upon the unconscious mind, influencing behavior, is called ____ _____.
Subliminal perception
The process of converting physical energy, such as light or sound, into electrochemical codes is called ______.
Transduction
The tendency of sensory receptor cells to adjust to the level of stimulation that are receiving is called ______.
Adaption
This refers to the vividness or richness of the color people see and it is called _______.
Saturation
The _______ is a clear membrane that covers the surface of the eye; protects the eye and is the structure that focuses most of the light coming into the eye.
Cornea
The _______ is another clear structure behind the iris, suspended by muscles; it finishes the focusing process begun by the cornea.
Lens
The visual sensory receptors found at the back of the retina, responsible for color vision and sharpness of vision, are called the ______.
Cones
The recovery of the eye’s sensitivity to visual stimuli in light after exposure to darkness is called _____ ______.
Light adaption
The images that occur when a visual sensation persists for a brief time even after the original stimulus is removed are called ______.
Afterimages
The thin section of skin that tightly covers the opening in the middle part of the ear, just like a drum skin covers the opening in a drum is called the _______.
Eardrum
The bundle of axons from the hair cells in the inner ear receives neural messages from the organ of corti in the _____.
Auditory nerve
The olfactory cortex in the temporal cortex allows us to recognize and remember about _________ different smells.
10,000