Unit 3: Basic Principles of S&P; Vision

Attending to one voice among many,

while also being able to detect your name in an unattended voice.

• Signal detection

• Absolute threshold

• Dual processing

• Cocktail party effect

Explains afterimages

• Opponent-Process Theory

• Weber's Law

• Trichromatic Theory

• Frequency Theory

Objects higher in our field of vision as farther away

• Interposition

• Linear perspective

• Relative height

• Relative size

Parallel lines converge in the distance.

• Interposition

• Convergence

• Linear perspective

• Proximity

Just-noticeable difference

• Dark adaptation

• Sensory adaptation

• Absolute threshold

• Difference threshold

Detecting the difference between 2 colors of paint.

• Dark adaptation

• Sensory adaptation

• Absolute threshold

• Difference threshold

Transduction of light

• Lens

• Retina

• Cochlea

• Semicircular canals

Amplitude of light wave.

• Color

• Hue

• Volume

• Brightness

"It doesn't smell anymore"

• Dark adaptation

• Sensory adaptation

• Absolute threshold

• Difference threshold

Feature analysis

• Top-down processing

• Bottom-up processing

• Accomodation

• Transduction