Chapter 4 for posting

Chapter 4 for posting - Sensation and Perception Sensation...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Sensation and Perception Sensation The awareness of properties of an object or an event when a sensory receptor is stimulated Perception The act of organizing and interpreting sensory input as signaling a particular object or event Illusions When perception does not accurately represent the world Psychophysics The study of the relationship between physical events and the experience of those events Thresholds Absolute threshold Just-noticeable difference (JND) Webers law Psychophysics: Detecting Signals Hit Miss False alarm Correct rejection Yes No Reported signal? Signal? Yes No Signal detection theory Sensitivity Bias Early Vision Properties of light Amplitude Frequency Wavelength Structures of the Eye Pupil Iris Lens Cornea Retina Fovea Optic nerve Rods and Cones Rods (100-120 million) Very sensitive to light Only register shades of gray Cones (5-6 million) Sensitive to particular wavelengths Allow color vision Detecting Light Properties of light Amplitude Frequency Wavelength Visual Processes...
View Full Document

Page1 / 33

Chapter 4 for posting - Sensation and Perception Sensation...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online