Chapter 5 - Exam 2 Flashcards
Sensory organs to the brain - Reception
Stimulation of sensory receptor cells by energy
Sensory organs to the brain - Transduction
Transforming cell stimulation into neural impulses
Sensory organs to the brain - Transmission
Delivering neural information to the brain for processing
Sensory adaptation
Diminished sensitivity as a consequence of constant stimulation
Anatomy of the Eye - Cornea
Protective layer of the eye; bends and focuses light into the pupil
Anatomy of the Eye - Pupil
The hole that light passes through
Anatomy of the Eye - Iris
Surrounds the pupil; dilates or restricts based on light intensity
Anatomy of the Eye - Lens
Focuses light to hit the back of the eye
Anatomy of the Eye - Retina
Holds the sensory neurons
Anatomy of the Eye - Optic Nerve
Nerve that connects eye to brain
Anatomy of the Eye - Fovea
Known indentation in the retina that is thinner; specialized for high acuity vision
Anatomy of the Eye - Blind Spot
Where the optic nerve is so there is a lack of receptors; our brains fill in this gap in our vision
Opponent-Process Theory
“opposing” retinal processes (red-green, yellow-blue, white-black) enable color vision. We analyze visual information in terms of these sets of opposing colors
Retinal Disparity
A binocular cue. How the brain computes distance between to objects
Perceptual Constancy
Ability to perceive objects as unchanging even as lighting, viewing angle, and distance change. (A top down process that lets us identify people and things quickly.