Introduction to major themes
Mental life and neural events I
Mental life and neural events II
Fechner and psychophysics
Touch and pain
UNIT 3 KEY TERMS
Forced-choice preferential looking
- Teller (1970): Gave infant 2 stimuli, one was plain, one striped
- Adult observer looks at tiny hole through which they can see infant but not stimuli
- You can ask the observer
Motion detector (neural)
Motion after effect
Aperture problem (local vs. global motion)
Uses of motion:
Perceive moving objects
Perceive Motion-defined form
Navigation by optic flow
Control of smooth p
*Infant contrast sensitivity is not as good as adults. (See image)
*Retina developed over first years of life. (can map out age through cells in eye)
Teller forced choice preferential looking.
Q: where is grating?
The infants power to distinguish stripes.
True and Maunsell 1996: Neurons in MT: area in monkeys cortex. Directionally
selective cells cells respond to motion (the direction of speed/time).
1. Find neuron: Have one cell, which fires vigorously (bottom of neuron)
SENSATION+PERCEPTION CLASS 2
Modern study of sensation + perception
HISTORICAL ROOTS: Questions raised by philosophers
What do I know?
Uses the Method of Doubtalways room for doubt.
mind is the only thing of which we can be certain
Acuity and contrast sensitivity
Perceptual learning in adults
The challenge with conducting experiments in vision: there is subjectivity in the method in
which it is carried out
SENSATION + PERCEPTION UNIT 2
Trichromatic or Young Hemholtz Theory
There are 3 fundamental color sensations (blue, green and red)
Each color is produced by activation of a different nerve
Nerve S blue
Nerve M green
Nerve L red
Color is an interna
UNIT 2: SOME KEY TERMS
the chromatic aspect (blue, red, etc)
the physical intensity of the light
chromatic strength of the hue
Wavelength (and why wavelength is not the same as color)
each color has a different wavelength; wh
1. Treatment 1. Explain the Investment Game. What is the Nash Equilibrium? Explain how
you made your decision in Round 1. Did your decision change over time; if so, how?
Imagine you are the First Mover; how would you decide what amount to send to the
Color: 3 attributes
Vision mediated by cones
Isaac Newton (1675) Experiment: what made up sunlight (See graph)
Passed sun light through a small hole then through a prism. Then, took a
piece of paper and put it on the floor, and