Term
|
Definition
| is the activation of the sense organs by a source of physical energy |
|
|
Term
|
Definition
is the
sorting out, interpretation, analysis, and integration of stimuli carried out by the sense
organs and brain |
|
|
Term
|
Definition
is any passing source of physical energy that produces
a response in a sense organ. |
|
|
Term
|
Definition
is the study of the relationship between
the physical aspects of stimuli and our psychological experience of them |
|
|
Term
|
Definition
is the smallest intensity of a stimulus that must be
present for it to be detected |
|
|
Term
|
Definition
background stimulation
that interferes with the perception of other stimuli |
|
|
Term
difference threshold
(just noticeable difference) |
|
Definition
is the minimum
change in stimulation required to detect the difference between two stimuli a just noticeable difference |
|
|
Term
|
Definition
states that a just noticeable difference is a constant proportion of the intensity of
an initial stimulus |
|
|
Term
|
Definition
an adjustment in sensory capacity after
prolonged exposure to unchanging stimuli. |
|
|
Term
|
Definition
is a
form of electromagnetic radiation waves, which, as shown in Figure 1, are measured
in wavelengths |
|
|
Term
|
Definition
| The range of wavelengths that humans are sensitive to |
|
|
Term
|
Definition
| a transparent, protective window |
|
|
Term
|
Definition
| a dark hole in the center |
|
|
Term
|
Definition
the colored part of the eye, which in humans
ranges from a light blue to a dark brown |
|
|
Term
|
Definition
| directly behind the pupil bends the rays of light so that they are properly focused on the rear of the eye |
|
|
Term
|
Definition
| The lens focuses light by changing its own thickness |
|
|
Term
|
Definition
| an image ultimate destination reaches it upside down because of lights physical properties |
|
|
Term
|
Definition
are thin, cylindrical
receptor cells that are highly sensitive to light |
|
|
Term
|
Definition
are typically cone-shaped,
light-sensitive receptor cells that are responsible for sharp focus and color perception,
particularly in bright light. |
|
|
Term
|
Definition
The rods play a key role in seeing objects that are outside the main center of focus—and in
night vision |
|
|
Term
|
Definition
| particularly sensitive region of the retina "see more sharply" |
|
|
Term
|
Definition
primarily responsible for the sharply
focused perception of color, particularly in brightly lit situations |
|
|
Term
|
Definition
related to
vision in dimly lit situations and are largely insensitive to color and to details as
sharp as those the cones are capable of recognizing |
|
|
Term
|
Definition
the process of adjusting to bright light after exposure to dim light—occurs much
faster, taking only a minute or so. |
|
|
Term
|
Definition
the phenomenon of adjusting
to dim light after being in brighter light |
|
|
Term
|
Definition
contained in rodes a complex reddish-purple
substance whose composition changes chemically when energized by light. |
|
|
Term
|
Definition
receive information directly from the rods and cones and communicate
that information to the ganglion cells |
|
|
