y45 - Myers PSYCHOLOGY (6th Ed) Sensation...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Myers’ PSYCHOLOGY (6th Ed) Chapter 5    Sensation James A. McCubbin, PhD Clemson University Worth Publishers
Background image of page 1

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

View Full DocumentRight Arrow Icon
Sensation Sensation a process by which our sensory  receptors and nervous system receive  and represent stimulus energy Perception a process of organizing and interpreting  sensory information, enabling us to  recognize meaningful objects and  events
Background image of page 2
Sensation Bottom-Up Processing analysis that begins with the sense receptors  and works up to the brain’s integration of  sensory information Top-Down Processing information processing guided by higher-level  mental processes as when we construct perceptions drawing on  our experience and expectations
Background image of page 3

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

View Full DocumentRight Arrow Icon
Sensation- Basic Principles Psychophysics study of the relationship between  physical characteristics of stimuli and  our psychological experience of them Light -  brightness Sound -  volume Pressure -  weight Taste -  sweetness
Background image of page 4
Sensation- Thresholds Absolute Threshold   minimum stimulation needed to detect a  particular stimulus usually defined as the stimulus needed for  detection 50% of the time Difference Threshold minimum difference between two stimuli that  a subject can detect 50% of the time just noticeable difference (JND) increases with magnitude
Background image of page 5

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

View Full DocumentRight Arrow Icon
Sensation- Thresholds Signal Detection Theory predicts how and when we detect the presence  of a faint stimulus (signal) amid background  stimulation (noise) assumes that there is no single absolute  threshold detection depends partly on person’s experience expectations motivation level of fatigue
Background image of page 6
When stimuli are  detectable less than  50% of the time  (below one’s  absolute threshold)  they are  “subliminal”. 0 25
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/11/2011 for the course PSY 2012 taught by Professor Dobson during the Spring '08 term at University of Florida.

Page1 / 44

y45 - Myers PSYCHOLOGY (6th Ed) Sensation...

This preview shows document pages 1 - 8. Sign up to view the full document.

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