Computational Explorations in Cognitive Neuroscience

Understanding the Mind by Simulating the Brain

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. **

- 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).

- 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.

- 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.

- 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.
- 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.

- 9/9/00: 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*