Signal Detection Theory


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Term: Signal Detection Theory
Definition (Myers): A theory predicting how and when we detect the presence of a faint stimulus amid background noise 1
Definition (alternative): The starting point for signal detection theory is that nearly all reasoning and decision making takes place in the presence of some uncertainty. Signal detection theory provides a precise language and graphic notation for analyzing decision making in the presence of uncertainty. The general approach of signal detection theory has direct application for us in terms of sensory experiments. But it also offers a way to analyze many different kinds of decision problems. 2
Contextual explanation: The signal detection theory studies how we make decisions and detect a stimuli in the midst of uncertainty.
Related terms and concepts:
http://www.cis.rit.edu/people/faculty/montag/vandplite/images/chapter_5/sigdet.gif 3
Signal Detection Theory - The Neuron4
Related websites:
  • http://www.cns.nyu.edu/~david/handouts/sdt/sdt.html
  • http://wise.cgu.edu/sdtmod/index.asp
  • http://findarticles.com/p/articles/mi_g2699/is_0003/ai_2699000316/
  • http://psych.hanover.edu/krantz/STD/
  • http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_5/ch5p1.html
Sources:
  1. Myers, D. G. (2004). Psychology. New York, New York: Worth Publishers.
  2. The Theory of Signal Detection. (n.d.). Retrieved September 24, 2009, from http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_5/ch5p1.html
  3. The Theory of Signal Detection. (n.d.). Retrieved September 24, 2009, from http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_5/ch5p1.html
  4. The Theory of Signal Detection. (n.d.). Retrieved September 24, 2009, from http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_5/ch5p1.html



Edited by: Michelle
Date of last edit: 9/25



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