Visual Perception System

These flash cards will aid students in revising the topic for their second outcome. It will also help them to study for their mid year exam.n

77 cards | Total Attempts: 189 | Created by min5263 | Last updated: Sep 17, 2015 | Total Attempts: 189

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Name The Six Senses

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Visual Illusions

Front	Back
Name the six senses	Touch Smell Taste Vision Hearing Kinaesthesia
The visual perception system consists of:	The complete network of physical structures, inlcuding the eye, neural pathways, and visual processing areas in the cortex of the brain
What do photoreceptors do?	Detect and respond to light
What are the names of two photoreceptors?	Rods and Cones
What is the visible light spectrum?	The band of electromagnetic energy or light. Ranges from 380 - 760 nanometres.
Limitations in light detection are known as ....	Thresholds
Cones are important for:	1. daytime vision 2. visual acuity 3. colour vision
Rods are important for:	1. night vision 2. peripheral vision
The blind spot is called this because	No rods or cones are located here and this is the place that the optic nerve leaves the retina.
Name as many of the structures of the eye as you can	Ciliary Muscle Lens Pupil Aquaeous Humour Iris Cornea Vitreous Humour Fovea Blind Spot Optic Nerve Retina
Absolute threshold refers to...	The mimimum amount of light energy that is necessary in order for a visual stimulus to be perceived
Differential Threshold is also known as...	Just Noticeable Difference (JND)
Differential Threshold is	The smallest perceptible difference that can be detected between two visual stimuli by the eye.
Define visual acuity	Sharpness of our and our ability to detect fine detail
Name the processes in visual perception in order.	Reception Transduction Transmission Selection Organisation Interpretation