chp 4 review test

the weakest stimuli that can be detected 50% of the time

• Absolute thresholds

• Difference thresholds

the process through which sensory receptors become less sensitive to constant stimuli

• Sensory adaptation

• Weber's law

• Signal detection theory

the minimum difference between 2 stimuli that can be noticed 50% of the time

• Difference threshold

• Absolute threshold

states that each of the senses has its own constant ratio determining difference thresholds

• Weber's law

• Sensory adaptation

• Signal detection theory

explains how internal and external factors influence out ability to detect weak signals in the environment

• Signal detection theory

• Weber's law

• Sensory adaptation

the distance between wave peaks (or troughs)

• Wavelength

• Light waves

• Touch

the color of an object, determined by the wavelength of light it reflects

• Hue

• Amplitude

• Saturation

The height of a wave; distance from midpoint to peak, or from midpoint to trough

• Amplitude

• Hue

• Saturation

Color purity

• Saturation

• Amplitude

• Hue

Specialized cells in the retina that absorb light energy and turn it into electrical and chemical signals for the brain to process

• Accommodation

• Photoreceptors

• Adaptation

• Feature detectors