Shared Flashcard Set

Details

Psychology 150
Chapter 4
31
Psychology
Undergraduate 2
09/23/2011

Additional Psychology Flashcards

 


 

Cards

Term
Sensation 
Definition

simple stimulation of a sense organ.

or

taking in the information from our enviroment.

Term
Transduction
Definition
What takes place when many sensors in the body convert physical signals from the environment into encoded neural signals sent to the central nervous system.
Term
Perception
Definition
The organization, identification, and interpretation of a sensation in order to form a mental representation.
Term
FIVE SENSES
Definition
SIGHT, HEARING, TASTE, TOUCH, SMELL
Term
Psychophysic 
Definition
method that measure the strength of a stimulus and the observer's sensitivity to that stimilus.
Term
Absolute Threshold
Definition
the minimal intensity needed to just barely detect a stimulus.
Term
Just Noticeable Difference (JND)
Definition
The minimal change in a stimulus that can just barely be detected.
Term
Weber's law
Definition
The just noticeable difference of a stimulus is a constant proportion despite variations in intensity.
Term
Signal Detection Theory
Definition
an observation that the response to a stimilus depends both on a person's sensitivity to the stimulus in the presence of noise and on a person's response criterion.
Term
Sensory Adaption
Definition
Sensitivity to prolonged stimulation tend to decline overtime as an organism adapt to current conditions.
Term
Synesthesia 
Definition
The perceptual experience of one sense that is evoked by another sense.
Term
The LENGTH of a waves determines
Definition
it hue, or what human perceive as color
Term
The intensity or AMPLITUDE of a wave 
Definition
how high the peak are-determines what we perceive as the brightness light.
Term
PURITY
Definition
is the number of distinct wavelength that make up light. Purity correspond to what human perceive as saturation, or richness of color.
Term
The FREQUENCY of the sound wave
Definition
are perceived by humans change in pitch.
Term
The AMPLITUDE of a sound wave
Definition
refers to it height, relative to the threshold for human hearing, which it corresponds to loudness.
Term
Differences in the COMPLEXITY of sound waves 
Definition
mix of frequencies, correspond to timbre.
Term
Pitch
Definition
How high or low a sound is.
Term
Loudness
Definition
A sound's intensity.
Term
Timbre
Definition
A listener's experience of sound quality or resonance.
Term
Cones
Definition
photoreceptors that detect color, operate under normal daylight conditions and allow us to focus on fine detail.
Term
Rods
Definition
Photorecepetors that become active under low-light conditions for night vision
Term
Part of eye are
Definition

-Cornea

-Pupil

-Iris

-len

-retina

-fovea

-optic nerve

-blind spot

Term
Cornea
Definition

-white, flexible, smooth outer layer

-first point light hit

-bend light waves allowing it to go through pupil

Term
Pupil
Definition
where the light enters
Term
Iris
Definition

-the colored part of our eye

-allows different amounts of light in eyes

 

Term
Lens
Definition
make the image that eyes see, clear, focus.
Term
retina
Definition

-object are seen the most clearly in this layer

-composed of 2 photoreceptor: cones & rod

-Light-sensitive tissue lining the back of the eyeball 

Term
Forvea
Definition

An area of the retina where vision is the clearest and there are no rods at all.

-ONLY CONES

Term
Optic nerve
Definition
bundle of nerves in back of eyeball, lead to occiptal lobe.
Term
Blind Spot
Definition
A location in the visual field that produces no sensation on the retina because the corresponding areas of the retina contains neither rods nor cones and therefore has no mechanism to sense light.
Supporting users have an ad free experience!