Define These Visual Sensation Terms Flashcards

P101 test 2

40 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
The police officer sometimes shines a light into the driver's eye. This typically results in the contraction of the _____, which controls the size of the pupil and thus the amount of light entering the eye.
Iris
_____ is the process by which we detect physical energy in the environment and encoding that energy as neural signals.
Sensation
The opponent-process theory is MOST useful for explaining the characteristics of:
afterimages
Cones or rods are: more light-sensitive and less color-sensitive than cones.
Rods
The size of the difference threshold is greater for heavier objects than for lighter ones. This best illustrates:
Weber's Law
When attending an extremely loud concert, your absolute threshold for sound is likely to:
increase
The detection and encoding of stimulus energies by the nervous system is called:
stimilus
This can briefly influence attitudes, thoughts, preferences and emotions
Subliminal stimuli
In dim lighting, your _____ are ineffectual
Cones
Feature detectors are located in the:
Visual cortex
The opponent-process theory is MOST useful for explaining the characteristics of:
Afterimages
Brightness is to amplitude as hue is to:
Wavelength
The ____ of a color corresponds to the purity of a light wave
Saturation
The area where the optic nerve leaves the retina is referred to as the:
Blind spot
Where is the visual cortex located?
Back of the brain