PSY 305 Lecture Notes - Lecture 4: Color Blindness, Receptive Field, Visual Processing
29 Jun 2018
School
Department
Course
Professor
Psychology 305
5 October 2017
Quiz Review:
1. Right primary visual cortex → highest acuity?
a. Left side, center of eye (not peripheral, less acuity)
2. The auditory cortex follows the principle of contralateral control. Thus the,
a. Right temporal lobe receives most of its input from the left ear
3. Mike has damage to his frontal cortex. He is likely to experience problems with which set
of behaviors
a. Complex thought, judgement, and reasoning
4. Which of the following is an advantage of synaptic transmission?
a. It allows neurons to compare multiple excitatory and inhibitory signals from many
sources
5. We are confident that the articulatory loop exists as a component of the working memory
system because
a. Behavioral manipulations, like articulatory suppression, suggest it is a distinct
component
Announcements:
● Explore course plan, textbook, library resources etc
● Due on canvas BEFORE class on 10th October
● Paste topic paragraph and full citation in text box
● Attach a file for your research paper
Lecture Notes:
The Visual System
● The structure of the eye is designed to project a sharp image onto the retina, the
light-sensitive tissue that lines the back of the eye
● Light comes in from the pupil, detracted by the lense, falls on the retina in the back of the
eye
● Representations on the retina are upside down and laterally inverted
● Lot of crossover between the eyes, both eyes represent central vision
●Photoreceptors: Rods and Cones -- receptor cells in the retina, sensitive to light, carry
out photo-transduction
○ Each eye contains about 120 million rods and about 6.5 million cones
● Local circuitry: Light → optic nerve → ganglion cell → amacrine cell → bipolar cell →
horizontal cell → rods and cones → back of the eye
● Rods and cones change shape when light falls on them (they have a protein in them
called opsin & retinal)
○ Photoexcitation, isomerization
○ Only takes a single photon of light to isomerize!
○ Only takes 7 excited receptors to see!
Document Summary
Quiz review : right primary visual cortex highest acuity, left side, center of eye (not peripheral, less acuity, the auditory cortex follows the principle of contralateral control. Thus the: right temporal lobe receives most of its input from the left ear, mike has damage to his frontal cortex. He is likely to experience problems with which set of behaviors: complex thought, judgement, and reasoning, which of the following is an advantage of synaptic transmission? a. Explore course plan, textbook, library resources etc. Due on canvas before class on 10th october. Paste topic paragraph and full citation in text box. Attach a file for your research paper. Each eye contains about 120 million rods and about 6. 5 million cones. Local circuitry: light optic nerve ganglion cell amacrine cell bipolar cell . The structure of the eye is designed to project a sharp image onto the retina , the.
