Errata For:
Computational Explorations in Cognitive Neuroscience
Understanding the Mind by Simulating the Brain

Randall C. O'Reilly and Yuko Munakata

A Bradford Book
The MIT Press
Cambridge, Massachusetts
London, England

7/30/03: Note: A second printing of the book is now available, which fixes most of the errata (and a number of other smaller typos). The errata are now listed by printing.

Second Printing

Errata By Date

• 11/30/03: Ch 5, p. 155, equation 5.15. Steven Bressler at Florida Atlantic University noted that this equation is missing a minus sign.
• 7/30/03: Ch 4, p. 135, equation 4.23. Lee Newman @ Univ Michigan noted that the Theta (wt_off) parameter should be in the denominator of the w/(1+w) ratio, not the numerator as it is written. Thus, it should read: (w_ij / (\Theta (1 - w_ij))^-\gamma instead of: (\Theta w_ij / (1 - w_ij))^-\gamma.
  
• 9/28/00: Ch 3, p. 88, 2nd col, 2nd par (Question 3.7): To toggle off the units in the event pattern, you can now (as of v. 3.0 of PDP++) just click with the middle button (or shift-left-button).

Errata By Page Number

• 9/28/00: Ch 3, p. 88, 2nd col, 2nd par (Question 3.7): To toggle off the units in the event pattern, you can now (as of v. 3.0 of PDP++) just click with the middle button (or shift-left-button).
• 7/30/03: Ch 4, p. 135, equation 4.23. Lee Newman @ Univ Michigan noted that the Theta (wt_off) parameter should be in the denominator of the w/(1+w) ratio, not the numerator as it is written. Thus, it should read: (w_ij / (\Theta (1 - w_ij))^-\gamma instead of: (\Theta w_ij / (1 - w_ij))^-\gamma.
  
• 11/30/03: Ch 5, p. 155, equation 5.15. Steven Bressler at Florida Atlantic University noted that this equation is missing a minus sign.

First Printing

Errata By Date

• 11/30/03: Ch 5, p. 155, equation 5.15. Steven Bressler at Florida Atlantic University noted that this equation is missing a minus sign.
• 7/30/03: Ch 4, p. 135, equation 4.23. Lee Newman @ Univ Michigan noted that the Theta (wt_off) parameter should be in the denominator of the w/(1+w) ratio, not the numerator as it is written. Thus, it should read: (w_ij / (\Theta (1 - w_ij))^-\gamma instead of: (\Theta w_ij / (1 - w_ij))^-\gamma.
  
• 2/19/01: Appendix B (Tutorial). We revised this tutorial substantially to better fit last minute changes in the software that make several things easier to do. However, we just discovered that this revision did not make it into the published version. So, we are making it available for download:
  Appendix B (Tutorial) Update, PDF -- or -- Postscript version
  
• 9/28/00: Ch 3, p. 88, 2nd col, 2nd par (Question 3.7): To toggle off the units in the event pattern, you can now (as of v. 3.0 of PDP++) just click with the middle button (or shift-left-button).
• 9/14/00: Ch 1, p. 55, 1st col, 2nd par: You no longer need to scroll to select r.wt -- it now appears at the top of the list of variables. This difference will appear throughout the text.
• 9/9/00: Acknowledgements, p. xxvii, 2nd col, 2nd par: Josh Dorman's web addr is http://www.sirius.com/~zknower/josh/ (tilde is missing in text).
• 9/9/00: Ch 8, p. 255, 1st col, 4th par: Read Weights is located in the Object menu, not Actions.
• 9/9/00: Ch 10, p. 338, 2nd col, 4th par: on some systems, the graph logs may not appear in the expected left/right positions --- use the names to identify instead.

Errata By Page Number

• 9/9/00: Acknowledgements, p. xxvii, 2nd col, 2nd par: Josh Dorman's web addr is http://www.sirius.com/~zknower/josh/ (tilde is missing in text).
• 9/14/00: Ch 1, p. 55, 1st col, 2nd par: You no longer need to scroll to select r.wt -- it now appears at the top of the list of variables. This difference will appear throughout the text.
• 9/28/00: Ch 3, p. 88, 2nd col, 2nd par (Question 3.7): To toggle off the units in the event pattern, you can now (as of v. 3.0 of PDP++) just click with the middle button (or shift-left-button).
• 7/30/03: Ch 4, p. 135, equation 4.23. Lee Newman @ Univ Michigan noted that the Theta (wt_off) parameter should be in the denominator of the w/(1+w) ratio, not the numerator as it is written. Thus, it should read: (w_ij / (\Theta (1 - w_ij))^-\gamma instead of: (\Theta w_ij / (1 - w_ij))^-\gamma.
  
• 11/30/03: Ch 5, p. 155, equation 5.15. Steven Bressler at Florida Atlantic University noted that this equation is missing a minus sign.
• 9/9/00: Ch 8, p. 255, 1st col, 4th par: Read Weights is located in the Object menu, not Actions.
• 9/9/00: Ch 10, p. 338, 2nd col, 4th par: on some systems, the graph logs may not appear in the expected left/right positions --- use the names to identify instead.
• 2/19/01: Appendix B (Tutorial). We revised this tutorial substantially to better fit last minute changes in the software that make several things easier to do. However, we just discovered that this revision did not make it into the published version. So, we are making it available for download:
  Appendix B (Tutorial) Update, PDF -- or -- Postscript version
  

Last updated: 07/30/03