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Dipping into Dip

Dipping into Dip. History, Mechanisms, Properties and Applications of the Dipper Function. Arman Abrahamyan University of Sydney , Sep 2009. Definitions. JND. Stimulus Intensity. Weber’s Law. Plotting the Dipper Function. Absolute Threshold. JND. Stimulus Intensity.

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Dipping into Dip

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  1. Dipping into Dip History, Mechanisms, Properties and Applications of the Dipper Function Arman Abrahamyan University of Sydney, Sep 2009

  2. Definitions JND Stimulus Intensity

  3. Weber’s Law

  4. Plotting the Dipper Function Absolute Threshold JND Stimulus Intensity

  5. “Pedestal” or “Dipper” Effect Absolute Threshold JND Stimulus Intensity

  6. Kitchen Dipper and Dipper Function

  7. Romp Through the History of Dipper Function

  8. Auditory Stimulus Detection Improvement with Pedestal Discrimination Threshold The Journal of the Acoustical Society of America Amplitude Time

  9. The Term Pedestal Amplitude Time

  10. First Published Dipper Function The Journal of the Acoustical Society of America

  11. Dipper Function and Visual Stimuli

  12. Visual Stimuli and Pedestal Effect

  13. Mechanisms of Dipper Function

  14. Sigmoidal Transfer Function Th Th Th Th JND JND JND JND

  15. Multimodal Integration and Dipper Function Uncertainty Reduction JND JND Stimulus Intensity Stimulus Intensity Multimodal integration

  16. Summary • Dipper function has been established in auditory, tactile, and visual domains • For higher stimulus intensities, the dipper function is consistent with Weber’s Law • For lower stimulus intensities, JND increases as intensity gets smaller

  17. Summary • Pedestal effect or dipper effect refers to the fact that presence of a pedestal at low stimulus intensities can improve discrimination relative to absolute threshold • Dipper function can be used to study multimodal integration

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