Class Notes (1,100,000)
CA (650,000)
SFU (10,000)
PSYC (1,000)
PSYC 100 (200)
Lecture 4

PSYC 100 Lecture Notes - Lecture 4: Color Blindness, Visual Perception, Sensory System


Department
Psychology
Course Code
PSYC 100
Professor
Russell Day
Lecture
4

This preview shows page 1. to view the full 4 pages of the document.
CHAPTER 4
SENSATION & PERCEPTION
Senses only as reliable as of 2 things: what is in real world, capacity of sensory system
Moon example (changes in size on retina not in real life)
Experience = Properties of the things we perceive & of sensory organs we use
Sensory organs - evolved limits (smaller kids hear higher pitches, smaller species see
infrared)
SENSATION:
Vision
Light
Light waves & wavelengths (colour processed in brain not eyes)
Light into the retina (crossover of half of info so R & L visual fields are interpreted
altogether independent of the eyes its associated with)
Visual pathways
1. Form, colour, brightness, contrast, depth
2. Localized in space, coordination with other sensory input
Visual fields
Parts of the EYE:
Back to front - goes through axons, dendrites, etc. before back where rods n cones are,
best O2 layer at back where rods n cones are (132 mil receptor in each eye)
Rods spread throughout
Cones in fovea (direct access into eye)
o 600 nanometers - red
o 500 - green
o 450 - blue
Colour blindness - idea that one or two sets of cones do not function properly
Theories of Colour Vision:
You're Reading a Preview

Unlock to view full version