Chapter 3 The Visual Perseptual Set Flashcards
Define perception
This refers to the process by which sensory information is given meaning, this is done by the brain
What is sensation?
Give a example
The process by which our sense organs and receptors detect and respond to sensory information that stimulates them.
The eyes are light receptors, the skin and hair is heat and touch receptors, the tongue is the taste receptor, the nose is the smell receptor, and the ears are the sound receptors.
Where does sensation end and perception start?
There is no answer, it is unknown
Name two parts of the eye
The lens The retina The cornea The aqueous humour The pupil The iris The ciliary muscle The blind spot The optical nerve The fovea And The blood vessels
What are the two types of receptors in the eye
Cones and rods
What is the order of the visual perception stages?
And what happens in each of them
Reception-light enters the eye.
Transduction-when light is changed to chemicals.
Transmission-going from optic nerve to brain.
Organisation- assembling into meaningful data.
Interpretation-process of giving meaning to visual information.
What are the three visual perception principals?
Gestalt
Depth
Perceptual constancies
What is in Gestalts principals ?
Figure ground, closure, similarity, and proximity.
What is in depths principals?
Binocular -convergence -retinal disparity Monocular -accommodation -pictorial cues -linear perspective -interposition -texture gradient -relative size -height in the visual field
What is in the perceptual constancies?
Brightness constancy
Shape constancy
Size constancy
Define physiological perception
Involves ways in our eyes, nervous system and brain process visual information.
Define psychological perception
Involves mental process such as our experiences, and Socio-cultural background.
What are the topics in the perceptual set?
Context, Motivation, Emotional state, Past experience, Cultural factors.
What is figure ground?
The way we organise information by dividing a image into a figure which stands out against the ground.
What is closure?
The perceptual tendency by mentally closing or filling the gaps between the figures.