Sensation - Module 1.6

Front

Process of receiving stimulus energies from the external environment

Back

Sensation

Front

Process of organizing and interpreting sensory information

Back

Perception

Front

Minimum stimulus energy needed to detect a stimulus 50% of the time

Back

Absolute Threshold

Front

The smallest amount of change in a stimulus that a person can detect half the time

Back

Difference Threshold or Just Noticeable Difference

Front

The just-noticeable difference between two stimuli is a function of the magnitude of the original stimulus. This means that the larger, or more intense, the original stimulus, the larger the just noticeable difference needs to be for it to be detected.

Back

Weber's law

Front

Diminished sensitivity as a consequence of constant exposure to a stimulus

Back

Sensory Adaptation

Front

Conversion of one form of energy into another, such as light into neural signals

Back

Transduction

Front

Photoreceptors in the retina sensitive to dim light, not color

Back

Rods

Front

Photoreceptors in the retina responsible for color vision

Back

Cones

Front

Theory that opposing retinal processes enable color vision

Back

Opponent-Process Theory