© Richard Goldman October 9, 2006

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Presentation transcript:

© Richard Goldman October 9, 2006 Module 8 Sensing the World Around Us Chapter 3, Pages 90-96 Essentials of Understanding Psychology- Sixth Edition PSY110 Psychology © Richard Goldman October 9, 2006

Sensation The receiving of a stimulus by a sense organs Sight Sound Day Night Color Sound Frequency (pitch) Intensity (loudness) Attitude (balance) Taste Sweet Sour Salty Bitter Touch Feel (Tactile) Pain Temperature

Perception Interpretation of a stimulus Screening of a stimulus Analysis of a stimulus Integration of a stimulus

Stimulus Energy that produces a response in a sense organ Intensity Sensitivity Range

Importance to Psychologist Much of human behavior it linked to perception

Psychophysics The study of the relationship between stimuli and psychological experience

Absolute Threshold The minimum level of intensity required for something to be sensed

Noise Background stimuli that interfere with perception of a target stimuli (moviemakers use auditory background sound to convey ambiance)

Difference Threshold Minimum difference in level of intensity to notice a change Called: Just Noticeable Difference

Weber’s Law (vay-ber) Expressed as a ratio – it takes the same relative level difference to perceive a difference at a low intensity as it would at high intensity

Adaptation Decrease in the perceived intensity of stimuli over time